Metadata:

Identification_Information:

Citation:

Citation_Information:

Originator: Douglas B. Stoeser

Originator: Gregory N. Green

Originator: Laurie C. Morath

Originator: William D. Heran

Originator: Anna B. Wilson

Originator: David W. Moore

Originator: Bradley S. Van Gosen

Publication_Date: 2005

Title:

Preliminary Integrated Geologic Map Databases for the United States

Central States: Montana, Wyoming, Colorado, New Mexico,

Kansas, Oklahoma, Texas, Missouri, Arkansas, and Louisiana,

- The State of Wyoming

Edition: version 1.0

Geospatial_Data_Presentation_Form: map

Series_Information:

Series_Name: U.S. Geological Survey Open-File Report

Issue_Identification: 2005-1351

Publication_Information:

Publication_Place: Denver, CO

Publisher: U.S. Geological Survey

Online_Linkage: http://pubs.usgs.gov/of/2005/1351/

Larger_Work_Citation:

Citation_Information:

Originator: Douglas B. Stoeser

Originator: Gregory N. Green

Originator: Laurie C. Morath

Originator: William D. Heran

Originator: Anna B. Wilson

Originator: David W. Moore

Originator: Bradley S. Van Gosen

Publication_Date: 2005

Title:

Preliminary Integrated Geologic Map Databases for the United States

Central States: Montana, Wyoming, Colorado, New Mexico,

Kansas, Oklahoma, Texas, Missouri, Arkansas, and Louisiana.

Edition: version 1.0

Geospatial_Data_Presentation_Form: map

Series_Information:

Series_Name: U.S. Geological Survey Open-File Report

Issue_Identification: 1351

Publication_Information:

Publication_Place: Reston, VA

Publisher: U.S. Geological Survey

Online_Linkage: http://pubs.usgs.gov/of/2005/1351/

Description:

Abstract:

This open-file report presents the results of the USGS Mineral Resources

Program activity to compile a national-scale geologic map database to support

national and regional level projects, including mineral resource and geo-

environmental assessments. The only comprehensive sources of regional- and

national-scale geologic maps are state geologic maps with scales ranging from

1:100,000 to 1:1,000,000. Digital versions of these state maps form the core

of what is presented here. Because no adequate geologic map exists for the

state of Alaska, it is being compiled in regional blocks that also form part

of this national database. It is expected that this series will completed by

approximately the end of 2007. These maps and databases are being released

in blocks of states or, in the case of Alaska, as compiled blocks of

1:250,000-scale quadrangles as chapters in this series. For Alaska, formal

maps as well as databases are being published here, whereas for the

conterminous U.S. only state databases and preview graphics are presented,

because published maps for most states already exist. For Alaska these

regional compilations will form the base for compiling a new geologic map of

the state. As documented in Chapter A, standards for the conterminous U.S.

are somewhat different than those for Alaska and Hawaii.

Purpose:

A primary goal of this work is to develop geologic map datasets with

standardized structure and attribution. The database design and standards are

documented in Chapter A of this series. The intent is that contiguous databases

can be merged seamlessly and without any additional effort. In addition to a

common database structure, the conterminous U.S. state databases

(the contiguous 48 states) have been fitted to a set of standard state

boundaries so that, when states are merged, they match without slivers or

overlap. No attempt has been made to reconcile differences in mapping across

state boundaries.

Supplemental_Information:

This database consists of five major Arc/Info GIS datasets for each state;

- one: geologic map with formations,

- two: faults (where present),

- three: dikes (where present),

- four: miscellaneous line features (where present),

- five: miscellaneous point features (where present).

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2005

Currentness_Reference: publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: none planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -111.25

East_Bounding_Coordinate: -104.00

North_Bounding_Coordinate: 45.00

South_Bounding_Coordinate: 41.00

Keywords:

Theme:

Theme_Keyword_Thesaurus: none

Theme_Keyword: geology

Place:

Place_Keyword_Thesaurus: none

Place_Keyword: USA

Place_Keyword: Wyoming

Theme:

Theme_Keyword_Thesaurus: National Geologic Map Database Catalog themes, augmented

Theme_Keyword: 3100 - Vector

Theme_Keyword: 3110 - ESRI

Theme_Keyword: 3112 - export

Theme_Keyword: 1100 - Geology

Theme_Keyword: 1101 - General

Place:

Place_Keyword_Thesaurus: Augmented FIPS 10-4 and FIPS 6-4, version 1.0

Place_Keyword: US56 = Wyoming

Access_Constraints: none

Use_Constraints:

This database is not meant to be used or displayed at any scale other

than 1:500,000.

Any hardcopies utilizing these data sets shall clearly indicate

their source. If the licensee has modified the data in any way

they are obligated to describe the types of modifications they

have performed on the hardcopy map. Licensee specifically agrees

not to misrepresent these data sets, nor to imply that changes they

made were approved by the U.S. Geological Survey.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Gregory N. Green

Contact_Organization: U.S. Geological Survey

Contact_Address:

Address_Type: mailing and physical address

Address: MS 973, USGS, Denver Federal Center

City: Denver

State_or_Province: CO

Postal_Code: 80225

Country: USA

Contact_Voice_Telephone: 303-236-5390

Contact_Electronic_Mail_Address: ggreen@usgs.gov

Data_Set_Credit:

State Geologic Map Compilation (SGMC) activity of the National Surveys and Analysis

projects of the US Geological Survey Mineral Resources Program.

Native_Data_Set_Environment:

ARC/INFO version 8.3

ArcView 3.2

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

The values of the attributes ROCKTYPE1 and ROCKTYPE2 were assigned based on the

information in the legends of the source maps (most of which are paper). The definitions of

these values are described in the draft document Geologic Map Classification version 6.1

(Johnson and others); available at the following website: http://geology.usgs.gov/dm )

Logical_Consistency_Report:

All internal polygons were checked for closure with vendor software and on hard copy plots.

Overshoots and undershoots have been deleted or corrected as appropriate.

Completeness_Report:

Bodies of water are classified as water, and the geologic units underlying them are not included in

this coverage.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

The geologic map was digitized from compilations ranging in scale from 1:1,000,000 to 1:100,000

and is an accurate representation of the source maps. It is intended to be used at scales

ranging from 1:1,000,000 to 1:500,000. Display at significantly larger scales may produce small

errors in locations of contacts or faults relative to features contained in other data sets.

Accuracy of Wyoming state boundary and those arcs intersecting it: The accuracy of the state

boundary arcs is based on the 1:100000 scale original data used to produce this boundary.

(Johnson, Bruce R. and Leveritch, Beth, 1998, 1:100,000 Scale State Boundaries of the

Conterminous United States: U.S. Geological Survey, unpublished

(see metadata file: st100kmeta.txt, Chapter A))

Those internal arcs intersecting the state boundary were extended or shortened as needed to

complete polygons, possibly creating a small amount of error.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Love, J.D.

Originator: Christiansen, A.C.

Publication_Date: 1985

Title: Geologic map of Wyoming

Geospatial_Data_Presentation_Form: map

Source_Scale_Denominator: 5000000

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1985

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Love and Christiansen (1985)

Source_Contribution: Original mapping and compilation

Source_Information:

Source_Citation:

Citation_Information:

Originator: Green, G.N.

Originator: Drouillard, P.H.

Publication_Date: 1994

Title: The Digital Geologic Map of Wyoming in ARC/INFO Format

Geospatial_Data_Presentation_Form: map

Source_Scale_Denominator: 500000

Type_of_Source_Media: digital map

Source_Contribution: Digital geologic map of Wyoming

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1994

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: WY001

Source_Information:

Source_Citation:

Citation_Information:

Originator: Bruce R. Johnson

Title: 1:100,000 Scale State Boundaries of the Conterminous United States

Geospatial_Data_Presentation_Form: vector digital data

Publication_Date: unpublished material

Source_Scale_Denominator: 100,000

Type_of_Source_Media: online

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 199808

Source_Currentness_Reference: unknown

Source_Citation_Abbreviation: US001

Source_Contribution: Provided linework for state boundaries

Source_Information:

Source_Citation:

Citation_Information:

Originator: Bruce R. Johnson

Publication_Date: unpublished material

Title: Geologic Map Unit Classification, ver. 6.1

Geospatial_Data_Presentation_Form: document

Type_of_Source_Media: online; http://geology.usgs.gov/dm

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: unknown

Source_Currentness_Reference: unknown

Source_Citation_Abbreviation: Johnson Lith Class 6.1

Source_Contribution: Classification scheme used for lithology.

Process_Step:

Process_Description:

The purpose of this standardization is to allow all SGMC covers to be

seamlessly joined without any additional effort to form regional or national

level digital maps. Note that for Alaska, the state is being compiled as blocks

of 1:250k quadrangles that will ultimately be used to compile a new state map.

Douglas Stoeser and Ric Wilson are co-coordinators for the overall SGMC effort,

with Stoeser coordinating work on the mainland states and Wilson coordinating

work for Alaska and Hawaii.

Process_Date: 2003 - 2004

Process_Step:

Process_Description:

G.N. Green obtained the digital geologic map of Wyoming from the website:

http://pubs.usgs.gov/of/ofr-94-0425/

Re-projected the coverage into the following:

projection: Lambert Conformal Conic

units: meters

datum: NAD27

standard parallel 1: 33 0 0.000

standard parallel 2: 45 0 0.000

central meridian: -100 0 0.000

reference latitude: 0 0 0.000

false easting: 0.00000

false northing: 0.00000

All attributes were deleted except NAME.

(Note: Attributes associated with the generation of the coverages were not deleted.

PAT - shape, area, perimeter, coverage#, and coverage-id

AAT - shape, fnode#, tnode#, lnode#, rnode#, length, coverage#, and coverage-id)

The values from NAME where then calculated into a new field called orig_label.

Process_Date: 20031210

Process_Step:

Process_Description:

The following attributes were exported from Filemaker as a comma delimited file

map_symbol1

map_symbol2

unit_link

reference_id

unit_age

rocktype1

rocktype2

The attributes were then loaded into INFO with the following structures:

item name: orig_label

width: 12

output: 12

type: c

item name: sgmc_label

width: 16

output: 16

type: c

item name: unit_link

width: 18

output: 18

type: c

item name: source

width: 6

output: 8

type: c

item name: unit_age

width: 60

output: 60

type: c

item name: rocktype1

width: 40

output: 40

type: c

item name: rocktype2

width: 40

output: 40

type: c

Process_Date: 20031222

Process_Step:

Process_Description:

Once the .csv was loaded, it was joined in Arc/Info with the joinitem command.

orig_label as the related item.

Process_Date: 2004818

Process_Step:

Process_Description:

Once the .pat file was correct, the .aat file was addressed. The following items were added

to the table:

item name: arc-code

width: 3

output: 3

type: i

item name: arc-para1

width: 3

output: 3

type: i

item name: arc-para2

width: 3

output: 3

type: i

item name: source

width: 6

output: 8

type: c

Process_Date: 20031223

Process_Step:

Process_Description:

Arc-code was populated using the digital map source to tag the lines using the AAT line type

data dictionary.

Arc-para1 was populated when additional information was available such as upthrown side of

a fault or angle of thrusting on a fault.

Arc-para2 is a scratch field that is used mostly in Alaska.

Source was populated with code that designates the source used for the linework; typically

the paper map.

Process_Date: 20031222

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: Lambert Conformal Conic

Lambert_Conformal_Conic:

Standard_Parallel: 33

Standard_Parallel: 45

Longitude_of_Central_Meridian: -100.0

Latitude_of_Projection_Origin: 0

False_Easting: 0.00000

False_Northing: 0.00000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.01

Ordinate_Resolution: 0.01

Planar_Distance_Units: Meters

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1927

Ellipsoid_Name: Clarke 1866

Semi-major_Axis: 6378206.4

Denominator_of_Flattening_Ratio: 294.98

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: wy_geol.pat

Entity_Type_Definition: Polygon attribute table for the Wyoming geologic coverage.

Entity_Type_Definition_Source: ESRI

Attribute:

Attribute_Label: orig_label

Attribute_Definition: unmodified map unit symbol from source cover.

Attribute_Definition_Source: Doug Stoeser

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Qa

Enumerated_Domain_Value_Definition: Alluvium and Colluvium