Identification_Information:
Citation:
Citation_Information:
Originator: John C. Reed, Jr.
Originator: Charles A. Bush
Publication_Date: 2001
Title: Generalized Geologic Map of the Conterminous United States
Edition: 1.0
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Denver, CO
Publisher: U.S. Geological Survey
Online_Linkage:
Description:
Abstract:
This data set contains boundaries and tags for major geologic units in the
conterminous United States. In addition to the polygons representing the
areal extent of geologic units, it identifies boundaries of metamorphic
provinces, major faults, calderas, impact structures, and the limits of
continental glaciation. The data depict the geology of the bedrock that
lies at or near the land surface, but not the distribution of surficial
materials such as soils, alluvium, and glacial deposits.
The data are generalized from a compilation prepared for use in the
Geologic Map of North America, to be published in hard copy by the
Geological Society of America and released as a digital file by the U.S.
Geological Survey.
Purpose:
These data have been prepared with a degree of detail appropriate for
viewing at a scale of 1:7,500,000. Because of the degree of
generalization required (generalization based on compilation scale), the
data are intended primarily for display and for regional and national
analysis, rather than for more detailed analysis in specific areas.
No responsibility is assumed by the U.S. Geological Survey in the use of
these data.
Supplemental_Information:
The data set for the Geologic Map of the Conterminous United States
consists of 9 data layers. The data layers for faults and glacial limit
lines are included in two different versions. The data are available as
shapefiles, SDTS files, or Arc/INFO Export files. The data layers are
distributed and should be used together. All the data layers were created
as ARC/INFO coverages and converted to other formats for distribution
purposes. The following files are included:
> Calderl075 - Outlines of major calderas and impact structures
> Faultgl075 - Fault lines, with line decorations*
> Faultl075 - Fault lines, without line decorations**
> Geolgym075 - Geologic units, as polygons
> Geotxtl075 - Graphic representation of geologic unit text*
> Glacagl075 - Glacial limit lines, with line decorations*
> Glacal075 - Glacial limit lines, without line decorations**
> Impactx075 - Impact structure locations, as points
> Metfacp075 - Areas and facies types of metamorphism, as polygons
>
>* these files are not 'true' Arc/INFO coverages; they are graphic
> representations of symbols and text used on the geologic map. These
> files should be used to produce appropriately symbolized graphics.
> The decorations and text only appear correctly in Lambert Azimuthal
> Equal Area projection.
>
>** these files are the same as the files marked with * but do not
> include the line decorations. They are the 'true' fault and glacial
> limit line Arc/INFO coverages. These files should be used for data
> analysis.
Any use of trade, product, or firm names is for descriptive purposes only
and does not imply endorsement by the U.S. Government
Although this Federal Geographic Data Committee-compliant metadata
file is intended to document the data set in nonproprietary form, some
Arc/INFO-specific terminology is included for clarity and expediency.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19980301
Ending_Date: 19990601
Currentness_Reference: Compilation date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -124.73301687
East_Bounding_Coordinate: -66.95458457
North_Bounding_Coordinate: 50.00006074
South_Bounding_Coordinate: 24.51789429
Keywords:
Theme:
Theme_Keyword_Thesaurus:
American Geological Institute (AGI) Glossary of Geology
Theme_Keyword: Bedrock
Theme_Keyword: Faults
Theme_Keyword: Geologic History
Theme_Keyword: Geologic Map
Theme_Keyword: Geology
Theme_Keyword: Glacial Limits
Theme_Keyword: Impact Structures
Theme_Keyword: Metamorphic Rocks
Theme_Keyword: Plutonic Rocks
Theme_Keyword: Regional Geology
Theme_Keyword: Sedimentary Rocks
Theme_Keyword: Tectonic History
Theme_Keyword: Tectonics
Theme_Keyword: Volcanic Rocks
Theme_Keyword: Volcanoes
Place:
Place_Keyword_Thesaurus: U.S. Board on Geographic Names (BGN)
Place_Keyword: Conterminous United States
Place_Keyword: United States
Place_Keyword: USA
Place_Keyword: Alabama
Place_Keyword: Arizona
Place_Keyword: Arkansas
Place_Keyword: California
Place_Keyword: Colorado
Place_Keyword: Connecticut
Place_Keyword: Delaware
Place_Keyword: District of Columbia
Place_Keyword: Florida
Place_Keyword: Georgia
Place_Keyword: Idaho
Place_Keyword: Illinois
Place_Keyword: Indiana
Place_Keyword: Iowa
Place_Keyword: Kansas
Place_Keyword: Kentucky
Place_Keyword: Louisiana
Place_Keyword: Maine
Place_Keyword: Maryland
Place_Keyword: Massachusetts
Place_Keyword: Michigan
Place_Keyword: Minnesota
Place_Keyword: Mississippi
Place_Keyword: Missouri
Place_Keyword: Montana
Place_Keyword: Nebraska
Place_Keyword: Nevada
Place_Keyword: New Hampshire
Place_Keyword: New Jersey
Place_Keyword: New Mexico
Place_Keyword: New York
Place_Keyword: North Carolina
Place_Keyword: North Dakota
Place_Keyword: Ohio
Place_Keyword: Oklahoma
Place_Keyword: Oregon
Place_Keyword: Pennsylvania
Place_Keyword: Rhode Island
Place_Keyword: South Carolina
Place_Keyword: South Dakota
Place_Keyword: Tennessee
Place_Keyword: Texas
Place_Keyword: Utah
Place_Keyword: Vermont
Place_Keyword: Virginia
Place_Keyword: Washington
Place_Keyword: West Virginia
Place_Keyword: Wisconsin
Place_Keyword: Wyoming
Access_Constraints: None
Use_Constraints:
None. Acknowledgment of the National Atlas of the United States of America
and (or) the U.S. Geological Survey would be appreciated in products derived
from these data.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: John C. Reed, Jr.
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: Mailing
Address: Mail Stop 913, Box 25046
City: Lakewood
State_or_Province: CO
Postal_Code: 80225
Country: USA
Contact_Voice_Telephone: 303-236-1276
Contact_Facsimile_Telephone: 303-236-0214
Contact_Electronic_Mail_Address: jreed@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name:
Browse_Graphic_File_Description: An image of the map
Browse_Graphic_File_Type: PDF
Browse_Graphic:
Browse_Graphic_File_Name:
Browse_Graphic_File_Description: An image of the map explanation
Browse_Graphic_File_Type: PDF
Data_Set_Credit:
Nancy Shock, Digital Cartographer, U.S. Geological Survey, assisted
in the digital compilation of this map.
Native_Data_Set_Environment:
SunOS, 5.6, sun4m UNIX
ArcNFO version 7.1.2
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The line attributes were manually checked by assigning unique line
types to the values and then plotting the data. The plots were
then compared to the source.
The polygon attributes were checked by visually comparing the final
colored plots to maps at various larger scales.
Logical_Consistency_Report:
Polygon and node topology are present. All polygons are labeled and were
tested by using the Arc/INFO command LABELERRORS. All polygons were checked
for closure, node errors, overshoots, undershoots, dangles and intersections
using Arc/INFO routines. The Arc/INFO commands BUILD and CLEAN were run to
ensure the topological consistency of the data set.
Completeness_Report:
This data set contains map unit boundaries and codes for the 48
conterminous States. Boundaries and codes are included for geologic
units, metamorphic facies, limits of glacial advance, impact structures,
caldera boundaries, and major faults.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The accuracy of the original data was checked by comparing the digital
files to several data sources. Both the line work and the polygon
labels were checked against the source compilation.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Bally, A.W. (ed.)
Originator: Palmer, A.R. (ed.)
Publication_Date: 1989
Title: The Geology of North America; an Overview
Series_Information:
Series_Name: The Geology of North America
Issue_Identification: v. A, 619 p.
Publication_Information:
Publication_Place: Boulder, Colorado
Publisher: Geological Society of America
Type_of_Source_Media: Paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1989
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: DNAG-A
Source_Contribution: Line work and attributes.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Buchfiel, B.C. (ed.)
Originator: Lipman, P.W. (ed.)
Originator: Zoback, M.L. (ed.)
Publication_Date: 1992
Title: The Cordilleran Orogen, Conterminous U.S.
Series_Information:
Series_Name: The Geology of North America
Issue_Identification: v. G-3, 724 p.
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Boulder, Colorado
Publisher: Geological Society of America
Source_Scale_Denominator: 5,000,000
Type_of_Source_Media: Paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1992
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: DNAG-G
Source_Contribution: Line work and attributes.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Hatcher, R.D. (ed.)
Originator: Viele, G.W. (ed.)
Originator: Thomas, W.A., (ed.)
Publication_Date: 1989
Title: Appalachian-Ouachita Orogen in the United States
Series_Information:
Series_Name: The Geology of North America
Issue_Identification: v. F-2, 767 p.
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Boulder, Colorado
Publisher: Geological Society of America
Source_Scale_Denominator: 5,000,000
Type_of_Source_Media: Paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1989
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: DNAG-F
Source_Contribution: Line work and attributes.
Source_Information:
Source_Citation:
Citation_Information:
Originator: King, P.B.
Originator: Beikman H.M.
Publication_Date: 1974
Title:
Geologic map of the United States (exclusive of Alaska and Hawaii)
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Reston, Virginia
Publisher: U.S. Geological Survey
Source_Scale_Denominator: 2,500,000
Type_of_Source_Media: Paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1974
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: GMUS
Source_Contribution: Line work and attributes.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Reed, J.C., Jr. (ed.)
Originator: Bickford, M.E. (ed.)
Originator: Houston, R.S. (ed.)
Originator: Link, P.K. (ed.)
Originator: Rankin, D.W. (ed.)
Originator: Sims, P.K. (ed.)
Originator: Van Schmus, W.R. (ed.)
Publication_Date: 1993
Title: Precambrian: Conterminous U.S.
Series_Information:
Series_Name: The Geology of North America
Issue_Identification: v. C-2, 657 p.
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Boulder, Colorado
Publisher: Geological Society of America
Source_Scale_Denominator: 5,000,000
Type_of_Source_Media: Paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1993
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: DNAG-C
Source_Contribution: Line work and attributes.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Salvador, A., ed
Publication_Date: 1991
Title: The Gulf of Mexico Basin
Series_Information:
Series_Name: The Geology of North America
Issue_Identification: v. J, 568 p.
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Boulder, Colorado
Publisher: Geological Society of America
Type_of_Source_Media: Paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1991
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: DNAG-J
Source_Contribution: Line work and attributes.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Sheridan, R.E. (ed.)
Originator: Grow, J.A. (ed.)
Publication_Date: 1988
Title: The Atlantic Continental Margin, U.S.
Series_Information:
Series_Name: The Geology of North America
Issue_Identification: v. I-2, 632 p.
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Boulder, Colorado
Publisher: Geological Society of America
Type_of_Source_Media: Paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1988
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: DNAG-I
Source_Contribution: Line work and attributes.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Silver, L.T. (ed.)
Originator: Schultz, P.H. (ed.)
Publication_Date: 1982
Title:
Geological Implications of Impacts of Large Asteroids and Comets on
the Earth: Geological Society of America Special Paper 190, 528 p.
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Boulder, Colorado
Publisher: Geological Society of America
Type_of_Source_Media: Paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1982
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: SP190
Source_Contribution: Impact structures
Source_Information:
Source_Citation:
Citation_Information:
Originator: Sloss, L.L. (ed.)
Publication_Date: 1988
Title: Sedimentary Cover, North American Craton, U.S
Series_Information:
Series_Name: The Geology of North America
Issue_Identification: v. D-2, 506 p.
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Boulder, Colorado
Publisher: Geological Society of America
Type_of_Source_Media: Paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1988
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: DNAG-D
Source_Contribution: Line work and attributes.
Process_Step:
Process_Description:
The geologic unit polygons (geolgym075), faults (faultl075), glacial
limit lines (glacal075), boundaries of metamorphic provinces
(metfacp075), calderas (calderl075), and impact structures (impactx075)
were created using the following procedures:
Data were compiled on scale-stable clear film at various scales. The
lines and points were then digitized and georeferenced using the
computer program GSMCAD, written by Van S. Williams, USGS. The program
is available at no charge at
. Polygons, lines, and
point features were attributed in GSMCAD.
Source_Used_Citation_Abbreviation: DNAG-A
Source_Used_Citation_Abbreviation: DNAG-G
Source_Used_Citation_Abbreviation: DNAG-F
Source_Used_Citation_Abbreviation: GMUS
Source_Used_Citation_Abbreviation: DNAG-C
Source_Used_Citation_Abbreviation: DNAG-J
Source_Used_Citation_Abbreviation: DNAG-I
Source_Used_Citation_Abbreviation: SP190
Source_Used_Citation_Abbreviation: DNAG-D
Process_Date: 1999
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: John C. Reed, Jr.
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: Mailing
Address: Mail Stop 913, Box 25046, Federal Center
City: Lakewood
State_or_Province: CO
Postal_Code: 80225
Country: USA
Contact_Voice_Telephone: 303-236-1276
Contact_Facsimile_Telephone: 303-236-0214
Contact_Electronic_Mail_Address: jreed@usgs.gov
Process_Step:
Process_Description:
The data were exported from GSMCAD into Arc/INFO Generate
format, and were imported into Arc/INFO coverages using AML
routines provided with GSMCAD.
Process_Date: 1999
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: John C. Reed, Jr.
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: Mailing
Address: Mail Stop 913, Box 25046, Federal Center
City: Lakewood
State_or_Province: CO
Postal_Code: 80225
Country: USA
Contact_Voice_Telephone: 303-236-1276
Contact_Facsimile_Telephone: 303-236-0214
Contact_Electronic_Mail_Address: jreed@usgs.gov
Process_Step:
Process_Description:
Errors in polygon labeling were checked using the LABELERROR
routine in ARCPLOT. Node errors were checked using ARCEDIT
routines. Colored plots were made to make final checks of the
overall coverages.
Process_Date: 1999
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Charles A. Bush
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: Mailing
Address: Mail Stop 913, Box 25046, Federal Center
City: Lakewood
State_or_Province: CO
Postal_Code: 80225
Country: USA
Contact_Voice_Telephone: 303-236-4723
Contact_Facsimile_Telephone: 303-236-0214
Contact_Electronic_Mail_Address: cbush@usgs.gov
Process_Step:
Process_Description:
Supplementary graphical coverages were created for the faults
(faultgl075) and glacial limit lines (glacagl075). These are the same
as faultl075 and glacal075 except decoration lines have been added for
display purposes. Another coverage was created containing arcs that
represent text labels for the polygons (geotxtl075). This is also for
display purposes.
Process_Date: 1999
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Charles A. Bush
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: Mailing
Address: Mail Stop 913, Box 25046, Federal Center
City: Lakewood
State_or_Province: CO
Postal_Code: 80225
Country: USA
Contact_Voice_Telephone: 303-236-4723
Contact_Facsimile_Telephone: 303-236-0214
Contact_Electronic_Mail_Address: cbush@usgs.gov
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Point
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.0000094433083
Longitude_Resolution: 0.0000094433083
Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: GRS1980
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label:
Fault, with line decorations (described by faultgl075.aat or
faultgl075.dbf)
Entity_Type_Definition:
A fault is a fracture or fracture zone in the Earth's crust along which
one side moves with respect to the other. This data set includes both
the faults and the line decorations.
Entity_Type_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: Shape
Attribute_Definition: The representation of the entity in the data.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Polyline
Enumerated_Domain_Value_Definition:
1-dimensional element that may or may not surround a 2-dimensional
element.
Enumerated_Domain_Value_Definition_Source: ESRI GIS software
Attribute:
Attribute_Label: Fnode#
Attribute_Definition: Internal sequence number of the from-node.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2
Range_Domain_Maximum: 50400
Attribute:
Attribute_Label: Tnode#
Attribute_Definition: Internal sequence number of the to-node.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 50401
Attribute:
Attribute_Label: Lpoly#
Attribute_Definition: Internal sequence number of the left polygon.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -1
Range_Domain_Maximum: 0
Attribute:
Attribute_Label: Rpoly#
Attribute_Definition: Internal sequence number of the right polygon.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -1
Range_Domain_Maximum: 0
Attribute:
Attribute_Label: Length
Attribute_Definition: The length of the line in coverage units.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 150.188
Range_Domain_Maximum: 430125.406
Attribute:
Attribute_Label: Faultgl075# or Faultgl#
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 69825
Attribute:
Attribute_Label: Faultgl075-id or Faultgl-id
Attribute_Definition: User-assigned feature number.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 4
Range_Domain_Maximum: 71912
Attribute:
Attribute_Label: Code
Attribute_Definition: The type of fault represented in the data set.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 12
Enumerated_Domain_Value_Definition: Fault
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: 13
Enumerated_Domain_Value_Definition: Thrust fault
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: 14
Enumerated_Domain_Value_Definition: Normal fault
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: 16
Enumerated_Domain_Value_Definition: Low angle detachment fault
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: 17
Enumerated_Domain_Value_Definition: Inferred fault
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: Text
Attribute_Definition: The type of fault.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Fault
Enumerated_Domain_Value_Definition:
A fault is a fracture or fracture zone in the Earth's crust along
which one side moves with respect to the other.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: Thrust fault
Enumerated_Domain_Value_Definition:
A thrust fault is a gently inclined fault (less than 45 degrees)
along which the principal movement has been more nearly horizontal
than vertical.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: Normal fault
Enumerated_Domain_Value_Definition:
A normal fault is a steeply inclined fault (more than 45 degrees)
where rocks above the fault have moved down relative to those
below the fault.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: Low angle detachment fault
Enumerated_Domain_Value_Definition:
A large, shallowly-inclined normal fault formed during extension of
the Earth's crust.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: Inferred fault
Enumerated_Domain_Value_Definition:
A fault that is assumed to be at the specified location.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Detailed_Description:
Entity_Type:
Entity_Type_Label:
Fault, without line decorations (described by faultl075.aat or
Faultl075.dbf)
Entity_Type_Definition:
A fault is a fracture or fracture zone in the Earth's crust along which
one side moves with respect to the other.
Entity_Type_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: Shape
Attribute_Definition: The representation of the entity in the data.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Polyline
Enumerated_Domain_Value_Definition:
1-dimensional element that may or may not surround a 2-dimensional
element.
Enumerated_Domain_Value_Definition_Source: ESRI GIS software
Attribute:
Attribute_Label: Fnode#
Attribute_Definition: Internal sequence number of the from-node.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 1
Attribute:
Attribute_Label: Tnode#
Attribute_Definition: Internal sequence number of the to-node.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 4
Attribute:
Attribute_Label: Lpoly#
Attribute_Definition: Internal sequence number of the left polygon.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 0
Attribute:
Attribute_Label: Rpoly#
Attribute_Definition: Internal sequence number of the right polygon.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 0
Attribute:
Attribute_Label: Length
Attribute_Definition: The length of the line in coverage units.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2337.81227
Range_Domain_Maximum: 583196.36613
Attribute:
Attribute_Label: Faultl075# or Faultl#
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 1259
Attribute:
Attribute_Label: Faultl075-id or Faultl-id
Attribute_Definition: User-assigned feature number.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 83
Range_Domain_Maximum: 1603
Attribute:
Attribute_Label: Code
Attribute_Definition: The type of fault represented in the data set.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 12
Enumerated_Domain_Value_Definition: Fault
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: 13
Enumerated_Domain_Value_Definition: Thrust fault
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: 14
Enumerated_Domain_Value_Definition: Normal fault
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: 16
Enumerated_Domain_Value_Definition: Low angle detachment fault
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: 17
Enumerated_Domain_Value_Definition: Inferred fault
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: Text
Attribute_Definition: The type of fault.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Fault
Enumerated_Domain_Value_Definition:
A fault is a fracture or fracture zone in the earth's crust along
which one side moves with respect to the other.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: Thrust fault
Enumerated_Domain_Value_Definition:
A thrust fault is a gently inclined fault (less then 45 degrees)
along which the principal movement has been more nearly horizontal
than vertical.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: Normal fault
Enumerated_Domain_Value_Definition:
A normal fault is a steeply inclined fault (more than 45 degrees)
where rocks above the fault have moved down relative to those
below the fault.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: Low angle detachment fault
Enumerated_Domain_Value_Definition:
A large, shallowly-inclined normal fault formed during extension of
the Earth's crust.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: Inferred fault
Enumerated_Domain_Value_Definition:
A fault that is assumed to be at the specified location.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Detailed_Description:
Entity_Type:
Entity_Type_Label:
Glacial limit line, with line decorations (described by glacagl075.aat
or glacagl075.dbf)
Entity_Type_Definition:
A line showing the southern limit of Late Wisconsin and pre-Late
Wisconsin glaciation in the United States. For display purposes, tics
are included along the line for line decorations.
Entity_Type_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: Shape
Attribute_Definition: The representation of the entity in the data.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Polyline
Enumerated_Domain_Value_Definition:
1-dimensional element that may or may not surround a
2-dimensional element.
Enumerated_Domain_Value_Definition_Source: ESRI GIS software
Attribute:
Attribute_Label: Fnode#
Attribute_Definition: Internal sequence number of the from-node.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 2140
Attribute:
Attribute_Label: Tnode#
Attribute_Definition: Internal sequence number of the to-node.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 2141
Attribute:
Attribute_Label: Lpoly#
Attribute_Definition: Internal sequence number of the left polygon.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 0
Attribute:
Attribute_Label: Rpoly#
Attribute_Definition: Internal sequence number of the right polygon.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 0
Attribute:
Attribute_Label: Length
Attribute_Definition: The length of the line in coverage units.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 8.990
Range_Domain_Maximum: 1291295.750
Attribute:
Attribute_Label: Glacagl075# or Glacagl#
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 1098
Attribute:
Attribute_Label: Glacagl075-id or Glacagl-id
Attribute_Definition: User-assigned feature number.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 1074
Attribute:
Attribute_Label: Code
Attribute_Definition:
Values representing the limits of glacial advance at two selected times.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Wisconsin glacial limit.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: 2
Enumerated_Domain_Value_Definition: Pre-Wisconsin glacial limit.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: Glacial_limit
Attribute_Definition: The type of glacial limit line.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Wisconsin Glacial Limit Line
Enumerated_Domain_Value_Definition:
A line showing the maximum extent of glaciation at late Wisconsin
time (35,000 to 11,150 years ago).
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: Pre-Wisconsin Glacial Limit Line
Enumerated_Domain_Value_Definition:
A line showing the maximum extent of glaciation prior to Late
Wisconsin time.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Detailed_Description:
Entity_Type:
Entity_Type_Label:
Glacial limit line, without line decorations (described by
glacal075.aat or glacal075.dbf)
Entity_Type_Definition:
A line showing the southern limit of Late Wisconsin and pre-Late
Wisconsin glaciation in the United States.
Entity_Type_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: Shape
Attribute_Definition: The representation of the entity in the data.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Polyline
Enumerated_Domain_Value_Definition:
1-dimensional element that may or may not surround a
2-dimensional element.
Enumerated_Domain_Value_Definition_Source: ESRI GIS software
Attribute:
Attribute_Label: Fnode#
Attribute_Definition: Internal sequence number of the from-node.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 0
Attribute:
Attribute_Label: Tnode#
Attribute_Definition: Internal sequence number of the to-node.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 0
Attribute:
Attribute_Label: Lpoly#
Attribute_Definition: Internal sequence number of the left polygon.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 0
Attribute:
Attribute_Label: Rpoly#
Attribute_Definition: Internal sequence number of the right polygon.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 0
Attribute:
Attribute_Label: Length
Attribute_Definition: The length of the line in coverage units.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 5125.622
Range_Domain_Maximum: 1291295.861
Attribute:
Attribute_Label: Glacal075 or Glacal#
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 91
Attribute:
Attribute_Label: Glacal075-id or Glacal-id
Attribute_Definition: User-assigned feature number.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 91
Attribute:
Attribute_Label: Code
Attribute_Definition:
Values representing the limits of glacial advance at two selected times.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Wisconsin glacial limit.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: 2
Enumerated_Domain_Value_Definition: Pre-Wisconsin glacial limit.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: Glacial_limit
Attribute_Definition: The type of glacial limit line.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Wisconsin Glacial Limit Line
Enumerated_Domain_Value_Definition:
A line showing the maximum extent of glaciation at late Wisconsin
time (35,000 to 11,150 years ago).
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: Pre-Wisconsin Glacial Limit Line
Enumerated_Domain_Value_Definition:
A line showing the maximum extent of glaciation prior to Late
Wisconsin time.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Detailed_Description:
Entity_Type:
Entity_Type_Label:
Text labels (described by geotxtl075.aat or geotxtl075.dbf)
Entity_Type_Definition:
Text labels for the geology coverage, represented as lines. Standard
geologic symbols are included.
Entity_Type_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: Shape
Attribute_Definition: The representation of the entity in the data.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Polyline
Enumerated_Domain_Value_Definition:
1-dimensional element that may or may not surround a
2-dimensional element.
Enumerated_Domain_Value_Definition_Source: ESRI GIS software
Attribute:
Attribute_Label: Fnode#
Attribute_Definition: Internal sequence number of the from-node.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 131
Attribute:
Attribute_Label: Tnode#
Attribute_Definition: Internal sequence number of the to-node.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 132
Attribute:
Attribute_Label: Lpoly#
Attribute_Definition: Internal sequence number of the left polygon.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 0
Attribute:
Attribute_Label: Rpoly#
Attribute_Definition: Internal sequence number of the right polygon.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 0
Attribute:
Attribute_Label: Length
Attribute_Definition: The length of the line in coverage units.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2373.982
Range_Domain_Maximum: 117346.711
Attribute:
Attribute_Label: Geotxtl075# or Geotxtl#
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 1206
Attribute:
Attribute_Label: Geotxtl075-id or Geotxtl-id
Attribute_Definition: User-assigned feature number.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 1105
Detailed_Description:
Entity_Type:
Entity_Type_Label:
Areas of amphibolite or blueschist facies metamorphism (described by
metfacp075.pat or metfacp075.dbf).
Entity_Type_Definition:
Metamorphism is the alteration of texture or composition in a rock by
pressure, heat, or water.
Entity_Type_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: Shape
Attribute_Definition: The representation of the entity in the data.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Polygon
Enumerated_Domain_Value_Definition: 2-dimensional element.
Enumerated_Domain_Value_Definition_Source: ESRI GIS software
Attribute:
Attribute_Label: Area
Attribute_Definition: The size of the shape in coverage units.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 21692.355
Range_Domain_Maximum: 153870630912
Attribute:
Attribute_Label: Perimeter
Attribute_Definition: The perimeter of the shape in coverage units.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1355.694
Range_Domain_Maximum: 5494734.500
Attribute:
Attribute_Label: Metfacp075# or Metfacp#
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2
Range_Domain_Maximum: 123
Attribute:
Attribute_Label: Metfacp075-id or Metfacp-id
Attribute_Definition: User-assigned feature number.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 122
Attribute:
Attribute_Label: Metam-fac
Attribute_Definition: The type of facies metamorphism.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value:
Enumerated_Domain_Value_Definition:
An area where metamorphism is not mapped.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: Amphibolite Facies Metamorphism
Enumerated_Domain_Value_Definition:
A metamorphic mineral assemblage formed under medium temperature and
medium to high pressure.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: Blueschist Facies Metamorphism
Enumerated_Domain_Value_Definition:
A metamorphic mineral assemblage formed under low temperature and
high pressure.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Detailed_Description:
Entity_Type:
Entity_Type_Label:
Calderas and impact structures (described by calderl075.aat or
calderl075.dbf)
Entity_Type_Definition:
Outlines of major calderas and impact structures. A caldera is a large,
generally circular depression at the summit of a volcano formed when
magma is withdrawn or erupted from a shallow underground magma
reservoir. An impact structure is a crater formed by the impact of a
meteoroid, asteroid, or comet with the Earth.
Entity_Type_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: Shape
Attribute_Definition: The representation of the entity in the data.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Polyline
Enumerated_Domain_Value_Definition:
1-dimensional element that may or may not surround a 2-dimensional
element.
Enumerated_Domain_Value_Definition_Source: ESRI GIS software
Attribute:
Attribute_Label: Fnode#
Attribute_Definition: Internal sequence number of the from-node.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 47
Attribute:
Attribute_Label: Tnode#
Attribute_Definition: Internal sequence number of the to-node.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 47
Attribute:
Attribute_Label: Lpoly#
Attribute_Definition: Internal sequence number of the left polygon.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 0
Attribute:
Attribute_Label: Rpoly#
Attribute_Definition: Internal sequence number of the right polygon.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 0
Attribute:
Attribute_Label: Length
Attribute_Definition: The length of the line in coverage units.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1600.429
Range_Domain_Maximum: 302426.781
Attribute:
Attribute_Label: Calderl075# or Calderl#
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 63
Attribute:
Attribute_Label: Calderl075-id or Calderl-id
Attribute_Definition: User-assigned feature number.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 104
Range_Domain_Maximum: 49926
Attribute:
Attribute_Label: Code
Attribute_Definition:
The type of caldera boundary or impact structure extent.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 17
Enumerated_Domain_Value_Definition: Caldera Boundary
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: 18
Enumerated_Domain_Value_Definition: Caldera Boundary, uncertain
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: 19
Enumerated_Domain_Value_Definition:
Extent of large, buried impact structure.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: Structure_type
Attribute_Definition: The type of structure
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Caldera Boundary
Enumerated_Domain_Value_Definition:
The areal extent of the caldera at the surface.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: Caldera Boundary, uncertain
Enumerated_Domain_Value_Definition:
The estimated areal extent of the caldera.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: Extent of large, buried impact structure
Enumerated_Domain_Value_Definition:
The estimated extent of the impact structure.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Detailed_Description:
Entity_Type:
Entity_Type_Label:
Impact site (described by impactx075.pat or impactx075.dbf)
Entity_Type_Definition:
The center of an impact structure. An impact structure is a crater
formed by the impact of a meteoroid, asteroid, or comet with the Earth.
Entity_Type_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: Shape
Attribute_Definition: The representation of the entity in the data.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Point
Enumerated_Domain_Value_Definition: 0-dimensional element.
Enumerated_Domain_Value_Definition_Source: ESRI GIS software
Attribute:
Attribute_Label: Area
Attribute_Definition: The size of the shape in coverage units.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.000
Range_Domain_Maximum: 0.000
Attribute:
Attribute_Label: Perimeter
Attribute_Definition: The perimeter of the shape in coverage units.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.000
Range_Domain_Maximum: 0.000
Attribute:
Attribute_Label: Impactx075# or Impactx#
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 32
Attribute:
Attribute_Label: Impactx075-id or Impactx-id
Attribute_Definition: User-assigned feature number.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 47
Range_Domain_Maximum: 78
Attribute:
Attribute_Label: Structure_types
Attribute_Definition: Indicates whether site is impacted or suspected.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Impact Structure
Enumerated_Domain_Value_Definition:
A site where the structure has been positively determined to have
been created by the impact of a meteoroid, asteroid, or comet with
the Earth.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: Suspected impact structure
Enumerated_Domain_Value_Definition:
A site where the structure may have been created by the impact of a
meteoroid, asteroid, or comet with the Earth. Positive
determination of the means of formation has not been made
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: Id_num
Attribute_Definition:
The identification number for the impact structure. Suspected impact
structures have a value of 0.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 17
Attribute:
Attribute_Label: Name
Attribute_Definition: The name or location of the impact site.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain:
There is no predefined set of impact structure names or locations.
Attribute:
Attribute_Label: Latitude
Attribute_Definition:
The latitude at the center of the impact site, in degrees and
minutes.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 29(02'
Range_Domain_Maximum: 47(36'
Attribute:
Attribute_Label: Longitude
Attribute_Definition:
The longitude at the center of the impact site, in degrees and
minutes.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 72(50'
Range_Domain_Maximum: 111(01'
Attribute:
Attribute_Label: Diameter_m
Attribute_Definition: The diameter of the impact site in miles.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 60.00
Attribute:
Attribute_Label: Age
Attribute_Definition:
The age of the impact site in years. (Ma indicates a million years.
For example, 100 Ma equals 100,000,000 years.)
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain:
There is no predefined set of ages.
Attribute:
Attribute_Label: Remarks
Attribute_Definition: The basis of site identification.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: There is no predefined set of remarks.
Detailed_Description:
Entity_Type:
Entity_Type_Label:
Geologic unit (described by geolgym075.pat or geolgyp075.dbf)
Entity_Type_Definition:
Rock and material that lies at or near the land surface, but not
surficial materials such as soils, alluvium, and glacial deposits. The
units are defined by sedimentary, volcanic, plutonic, or metamorphic
rock types and by their geologic age. The Text attribute is included to
provide a method for generating the appropriate map symbols for display
and publication purposes.
Entity_Type_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: Shape
Attribute_Definition: The representation of the entity in the data.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Polygon
Enumerated_Domain_Value_Definition: 2-dimensional element.
Enumerated_Domain_Value_Definition_Source: ESRI GIS software
Attribute:
Attribute_Label: Area
Attribute_Definition: The size of the shape in coverage units.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 4070.129
Range_Domain_Maximum: 566153969664
Attribute:
Attribute_Label: Perimeter
Attribute_Definition: The perimeter of the shape in coverage units.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 540.234
Range_Domain_Maximum: 19685880.000
Attribute:
Attribute_Label: Geolgyp075# or Geolgyp#
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2
Range_Domain_Maximum: 2778
Attribute:
Attribute_Label: Geolgyp075-id or Geolgyp-id
Attribute_Definition: User-assigned feature number.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 3500
Attribute:
Attribute_Label: Geology
Attribute_Definition: The standard geologic symbol for the rock type.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: (See table under Text)
Enumerated_Domain_Value_Definition: (See table under Text)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: Mapunit_sy
Attribute_Definition: A letter code representing the geology.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: (See table under Text)
Enumerated_Domain_Value_Definition: (See table under Text)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: Text
Attribute_Definition:
The value recognized by the program GSMCAD and used to create the
special font for geologic symbols, e.g. %217 represents the geologic
symbol for mesozoic. Because standard fonts available in ARC/INFO do
not have the special symbols used for geologic time periods, the symbols
were created in GSMCAD and exported as arcs.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: (See table below)
Enumerated_Domain_Value_Definition:
The values for Text are listed below, along with the associated
values for the Mapunit_sy attribute and the values for the
Geology attribute.
>
>MAPUNIT_SY TEXT GEOLOGY
>-------------------------------------------------------------------
>Q Q Quaternary deposits
>nT nT Neogene sedimentary rocks
>pgT pgT Paleogene sedimentary rocks
>KT KT Cretaceous and Tertiary sedimentary rocks
>Mz %217 Mesozoic sedimentary rocks
>lMz l%217 Lower Mesozoic (Triassic and Jurassic)
> sedimentary rocks
>uPz u%216 Upper Paleozoic (Pennsylvanian and
> Permian) sedimentary rocks
>PzMz %216%217 Paleozoic and Mesozoic sedimentary rocks
>mPz m%216 Middle Paleozoic (Silurian, Devonian, and
> Mississippian) sedimentary rocks
>Pz %216 Paleozoic sedimentary rocks
>lPz l%216 Lower Paleozoic (Cambrian and Ordovician)
> sedimentary rocks
>ZPz Z%216 Upper Proterozoic and Lower Paleozoic
> sedimentary rocks
>Z Z Upper Proterozoic sedimentary rocks
>Y Y Middle Proterozoic sedimentary rocks
>P_ %215 Proterozoic sedimentary rocks
>X X Lower Proterozoic sedimentary rocks
>A A Archean sedimentary rocks
>K K Cretaceous sedimentary rocks
>Qv Qv Quaternary volcanic rocks
>nTv nTv Neogene volcanic rocks
>pgTv pgTv Paleogene volcanic rocks
>Kv Kv Cretaceous volcanic rocks
>Mzv %217v Mesozoic volcanic rocks
>lMzv l%217v Lower Mesozoic (Triassic and Jurassic)
> volcanic rocks
>PzMzv %216%217v Paleozoic and Mesozoic volcanic rocks
>mPzv m%216v Middle Paleozoic volcanic rocks
>lPzv l%216v Lower Paleozoic volcanic rocks
>ZPzv Z%216v Upper Proterozoic and Lower
> Paleozoic volcanic rocks
>Zv Zv Upper Proterozoic volcanic rocks
>Yv Yv Middle Proterozoic volcanic rocks
>Xv Xv Lower Proterozoic volcanic rocks
>pgTg pgTg Paleogene granitic rocks
>pgTi pgTi Paleogene intermediate rocks
>pgTm pgTm Paleogene mafic rocks
>KTg KTg Cretaceous and Tertiary granitic rocks
>Kg Kg Cretaceous granitic rocks
>Mzg %217g Mesozoic granitic rocks
>lMzg l%217g Early Mesozoic granitic rocks
>lMzm l%217m Early Mesozoic mafic rocks
>lMzu l%217u Early Mesozoic ultramafic rocks
>uPzg u%216g Late Paleozoic granitic rocks
>mPzg m%216g Middle Paleozoic granitic rocks
>mPzm m%216m Middle Paleozoic mafic rocks
>lPzg l%216g Early Paleozoic granitic rocks
>ZPzg Z%216g Late Proterozoic and Early Paleozoic
> granitic rocks
>ZPzm Z%216m Late Proterozoic and Early Paleozoic
> mafic rocks
>P_g %215g Proterozoic granitic rocks
>Yg Yg Middle Proterozoic granitic rocks
>Ym Ym Middle Proterozoic mafic rocks
>Ya Ya Middle Proterozoic anorthositic rocks
>Xg Xg Early Proterozoic granitic rocks
>Xm Xm Early Proterozoic mafic rocks
>Ag Ag Archean granitic rocks
>Zg Zg Late Proterozoic granitic rocks
>n n Gneiss, age uncertain
>ZPzn Z%216n Late Proterozoic and Early Paleozoic gneiss
>Yn Yn Middle Proterozoic gneiss
>Xn Xn Early Proterozoic gneiss
>An An Archean gneiss
>PzMzm %216%217m Paleozoic and Mesozoic mafic rocks
>Tv Tv Tertiary volcanic rocks
>nTg nTg Neogene granitic rocks
>H2o H2o Water body
>
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: Geoshade
Attribute_Definition:
The shade pattern number from the ARC/INFO shadeset geoshade.shd.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 231
Attribute:
Attribute_Label: Red
Attribute_Definition: Percentage values used to produce colors.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 255
Attribute:
Attribute_Label: Green
Attribute_Definition: Percentage values used to produce colors.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 255
Attribute:
Attribute_Label: Blue
Attribute_Definition: Percentage values used to produce colors.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 255
Detailed_Description:
Entity_Type:
Entity_Type_Label:
Rock or geologic deposit boundary line (described by geolgym075.aat or
geolgyl075.dbf)
Entity_Type_Definition: Line separating different geologic units.
Entity_Type_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: Shape
Attribute_Definition: The representation of the entity in the data.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Polyline
Enumerated_Domain_Value_Definition:
1-dimensional element that may or may not surround a 2-dimensional
element.
Enumerated_Domain_Value_Definition_Source: ESRI GIS software
Attribute:
Attribute_Label: Fnode#
Attribute_Definition: Internal sequence number of the from-node.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 9432
Attribute:
Attribute_Label: Tnode#
Attribute_Definition: Internal sequence number of the to-node.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 9432
Attribute:
Attribute_Label: Lpoly#
Attribute_Definition: Internal sequence number of the left polygon.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 2778
Attribute:
Attribute_Label: Rpoly#
Attribute_Definition: Internal sequence number of the right polygon.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 2768
Attribute:
Attribute_Label: Length
Attribute_Definition: The length of the line in coverage units.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 4.762
Range_Domain_Maximum: 1571543.250
Attribute:
Attribute_Label: Geolgyl075# or Geolgyl#
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 10599
Attribute:
Attribute_Label: Geolgyl075-id or Geolgyl-id
Attribute_Definition: User-assigned feature number.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 3
Range_Domain_Maximum: 49939
Attribute:
Attribute_Label: Code
Attribute_Definition: The type of geologic boundary code.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 11
Enumerated_Domain_Value_Definition: Contact
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: 12
Enumerated_Domain_Value_Definition: Fault (copied in fault file)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: 13
Enumerated_Domain_Value_Definition:
Thrust fault (copied in fault file)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: 14
Enumerated_Domain_Value_Definition:
Normal fault (copied in fault file)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: 16
Enumerated_Domain_Value_Definition:
Low angle detachment fault (copied in fault file)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: 21
Enumerated_Domain_Value_Definition: Shoreline
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: 23
Enumerated_Domain_Value_Definition: International boundary
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: Text
Attribute_Definition: The type of geologic boundary.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Contact
Enumerated_Domain_Value_Definition:
The surface where two different kinds of rocks meet.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: Fault (copied in fault file)
Enumerated_Domain_Value_Definition:
A fault is a fracture or fracture zone in the Earth's crust along
which one side moves with respect to the other. This data set
includes both the faults and the line decorations.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: Thrust fault (copied in fault file)
Enumerated_Domain_Value_Definition:
A thrust fault is a gently inclined fault (less then 45 degrees)
along which the principal movement has been more nearly horizontal
than vertical.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: Normal fault (copied in fault file)
Enumerated_Domain_Value_Definition:
A normal fault is a steeply inclined fault (more than 45 degrees)
where rocks above the fault have moved down relative to those
below the fault.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value:
Low angle detachment fault (copied in fault file)
Enumerated_Domain_Value_Definition:
A large, shallowly-inclined normal fault formed during extension of
the Earth's crust.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: Shoreline
Enumerated_Domain_Value_Definition:
The line where geologic map units are terminated by a body of water.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value: International boundary
Enumerated_Domain_Value_Definition:
The line where geologic map units are terminated by an international
boundary.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: mailing
Address: MS 902, Box 25046, Denver Federal Center
City: Lakewood
State_or_Province: CO
Postal_Code: 80225
Country: USA
Contact_Voice_Telephone: 303-236-0953
Contact_Electronic_Mail_Address: gellis@usgs.gov
Distribution_Liability:
Although these data have been processed successfully on a computer system at
the U.S. Geological Survey, no warranty expressed or implied is made by the
U.S. Geological Survey regarding the utility of the data on any other
system, nor shall the act of distribution constitute any such warranty. No
responsibility is assumed by the U.S. Geological Survey in the use of these
data.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ARCE
File_Decompression_Technique: gzipped tar file
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
Geologic_Map_of_the_US
Digital_Form:
Digital_Transfer_Information:
Format_Name: ESRI Shapefile
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
Geologic_Map_of_the_US
Digital_Form:
Digital_Transfer_Information:
Format_Name: SDTS
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
Geologic_Map_of_the_US
Fees:
There is no charge for download of these files.
Metadata_Reference_Information:
Metadata_Date: 20010328
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Charles A. Bush
Contact_Position: Geophysicist
Contact_Address:
Address_Type: mailing and physical address
Address:
MS 913, Box 25046, Room 1512, Building 25, Denver Federal Center
City: Lakewood
State_or_Province: CO
Postal_Code: 80025
Country: USA
Contact_Voice_Telephone: 303-236-4723
Contact_Facsimile_Telephone: 303-236-0214
Contact_Electronic_Mail_Address: cbush@usgs.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Security_Information:
Metadata_Security_Classification_System: None
Metadata_Security_Classification: Unclassified
Metadata_Security_Handling_Description: None