This report describes the contents of a digital dataset which consists
of four ARC/INFO Export format files. The dataset includes a digital
representation of the Montana state geologic map.
Purpose:
To provide to the public a digital geologic map database of the Montana state geologic map.
Supplemental_Information:
It appears that the geology coverages wmtgeol and emtgeol
were fitted to a standard state boundary using the rubber-sheet
method while the arc coverages wmtarcs and emtarcs either were
not or were fitted somewhat differently. Consequently the
geographic correspondence between arcs and geologic unit
boundaries is more faithful away from the map's edges,
and near the state boundary arcs appear to be displaced
relative to geologic unit contacts.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1995
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: Unknown
Access_Constraints: none
Use_Constraints: none
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Raines, Gary Lee
Contact_Organization: USGS-GEO-WRG-MRS
Contact_Address:
Address_Type: mailing and physical address
Address: MacKay School Of Mines
City: Reno
State_or_Province: NV
Postal_Code: 89557-0047
Country: US
Contact_Voice_Telephone: 775-784-5596
Contact_Electronic_Mail_Address:graines@usgs.gov
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: geology
Theme_Keyword: geologic maps
Theme_Keyword: geologic structure
Theme_Keyword: bedrock geologic units
Theme_Keyword: geospatial datasets
Theme:
Theme_Keyword_Thesaurus: National Geologic Map Database Catalog themes, augmented
Theme_Keyword: 3400 - Graphical
Theme_Keyword: 3410 - PDF
Theme_Keyword: 3100 - Vector
Theme_Keyword: 3110 - ESRI
Theme_Keyword: 3112 - export
Theme_Keyword: 1100 - Geology
Theme_Keyword: 1101 - General
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
Theme_Keyword: geoscientificInformation
Place:
Place_Keyword_Thesaurus: Augmented FIPS 10-4 and FIPS 6-4
Place_Keyword: US30 = Montana
Data_Set_Credit:
Digital products such as this map would not exist without the geologic mapping of generations of geologists whose work contributed to the small-scale state geologic maps that have been published by most states. We gratefully acknowledge the work of the geologists and agencies that supported compilation of this map. Those agencies include the US Geological Survey and the Washington State Department of Natural Resources. We particularly wish to acknowledge Patrick Geehan, the Bureau of Land Management Project coordinator for the Interior Columbia River Basin Ecosystem Management Project, for recognizing the importance of geology to ecosystem management and for supplying funds to digitize the Washington map.
Data_Quality_Information:
Logical_Consistency_Report:
The USGS provided basin-wide, integrated, digital inmornation about bedrock lithology, compositional classifications of lithology, potential animal habitat, stream sediment geochemistry, volcanic and earthquake hazards, and mineral resources.
Completeness_Report: Complete
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Eastern Montana: 133.434 meters
Western Montana: 965.561 meters
Lineage:
Process_Step:
Process_Description:
The map was processed digitally, as follows: the source material was scanned, the scanned image was vectorized and topologically structured, the lines and polygons were edited and proofed, attributes were added and proofed, the map was transformed from scanner units to geographic coordinate, and finally, map distortions were removed by rubber-sheeting. The initial objective was to obtain a digital representation that, when plotted, would overlay the source material within a line width; the digital version of the map meets this test.
Process_Date: unknown
Process_Step:
Process_Description: Creation of original metadata record
Enumerated_Domain_Value_Definition: Location of fault
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: other
Enumerated_Domain_Value_Definition: Location of a linear feature other than a fault
Attribute:
Attribute_Label: MODIFIER
Attribute_Definition: Type of contact, fault, fold or other
Attribute_Definition_Source: OFR-95-0691
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: continental ice sheet
Enumerated_Domain_Value_Definition: Location of ice sheet
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: normal
Enumerated_Domain_Value_Definition: Normal fault
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: tertiary dikes
Enumerated_Domain_Value_Definition: Location of tertiary dikes
Attribute:
Attribute_Label: ACCURACY
Attribute_Definition: Positional accuracy
Attribute_Definition_Source: OFR-95-0691
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: certain
Enumerated_Domain_Value_Definition: Definite linear feature
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: concealed
Enumerated_Domain_Value_Definition: Concealed linear feature
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: inferred
Enumerated_Domain_Value_Definition: Inferred linear feature
Attribute:
Attribute_Label: FAULT_CONT
Attribute_Definition: Denotes that arc is both a fault and contact
Attribute_Definition_Source: OFR-95-0691
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: no
Enumerated_Domain_Value_Definition: Either contact or fault
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: yes
Enumerated_Domain_Value_Definition: Both contact and fault
Attribute:
Attribute_Label: LINE_DESCRIP
Attribute_Definition: LTYPE, MODIFIER, and ACCURACE combined and one attribute
Attribute_Definition_Source: OFR-95-0691
Detailed_Description:
Entity_Type:
Entity_Type_Label: EMTGEOL.PAT
Entity_Type_Definition: Geology of eastern Montana
Entity_Type_Definition_Source: OFR-95-0691
Attribute:
Attribute_Label: FORMATION
Attribute_Definition:
Map unit symbol. This field provides a relational key to the
associated table wmtgeol.tbl or emtgeol.tbl (these two tables
are identical) which provides additional information about
each formation.
Observed thrust fault whose position is the same as a geologic contact
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: FLTTHRI
Enumerated_Domain_Value_Definition: Fault thrust whose position is inferred
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: FLTTHRIC
Enumerated_Domain_Value_Definition:
Fault thrust whose position is inferred and has the same location as a geologic contact
Attribute:
Attribute_Label: LTYPE
Attribute_Definition: Line type
Attribute_Definition_Source: OFR-95-0691
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: dike
Enumerated_Domain_Value_Definition: location of dike
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: other
Enumerated_Domain_Value_Definition: Other linear feature
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: fault
Enumerated_Domain_Value_Definition: Location of fault
Attribute:
Attribute_Label: MODIFIER
Attribute_Definition:
Type of contact, fault, fold or other (same attributes as EMTARCS.AAT with the additional attributes below)
Attribute_Definition_Source: OFR-95-0691
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Pu
Enumerated_Domain_Value_Definition: Geologic unit Pu
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: pCb
Enumerated_Domain_Value_Definition: Geologic map unit pCb
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: pCd
Enumerated_Domain_Value_Definition: Geologic map unit pCd
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: thrust
Enumerated_Domain_Value_Definition: Thrust fault
Attribute:
Attribute_Label: ACCURACY
Attribute_Definition:
Positional accuracy (same attributes as arc coverage EMTARCS.AAT)
Attribute_Definition_Source: OFR-95-0691
Attribute:
Attribute_Label: LINE_DESCRIP
Attribute_Definition: LTYPE, MODIFIER, and ACCURACY combined as one attribute
Attribute_Definition_Source: OFR-95-0691
Detailed_Description:
Entity_Type:
Entity_Type_Label: WMTGEOL.PAT
Entity_Type_Definition: Geology of western Montana
Entity_Type_Definition_Source: OFR-95-0691
Attribute:
Attribute_Label: FORMATION
Attribute_Definition: Geolgic formation (no descriptions of map units found)
Attribute_Definition_Source: OFR_95-0691
Detailed_Description:
Entity_Type:
Entity_Type_Label: WMTGEOL.AAT
Entity_Type_Definition:
Linear geologic features of western Montana (same attributes as arc coverage EMTGEOL.AAT)
Entity_Type_Definition_Source: OFR-95-0691
Detailed_Description:
Entity_Type:
Entity_Type_Label: WMTGEOL.PAT
Entity_Type_Definition:
Geology of western Montana at specific locations (same attributes as polygon coverage WMTGEOL.PAT)
Entity_Type_Definition_Source: OFR-95-0691
Detailed_Description:
Entity_Type:
Entity_Type_Label: wmtgeol.tbl or emtgeol.tbl
Entity_Type_Definition:
This is a lookup table providing specific information about each
geologic unit. The FORMATION field can be used to join this
table with the polygon attribute tables of the wmtgeol and
emtgeol coverages.
Attribute:
Attribute_Label: FORMATION
Attribute_Definition:
The map unit symbol used on the published map. This is the item
that is related to the map coverage. This is not necessary a
formation in the normal usage. It is a map unit. (String of width 11)
Attribute:
Attribute_Label: UNIT_NAME
Attribute_Definition:
The map unit name from the map explanation. (String of width 75)
Attribute_Domain_Values:
Unrepresentable_Domain: Formal and informal names with a minimum of abbreviation
Attribute:
Attribute_Label: ROCK_TYPE
Attribute_Definition:
The general rock category from the map explanation. Generally
this is something like sedimentary, igneous, or metamorphic.
(String of width 50)
Lithology from the map explanation. LITH1 is the first-described lithology, LITH2 the second, and so on to LITH8. (String of width 40)
Attribute_Domain_Values:
Unrepresentable_Domain: Plain text with a minimum of abbreviation
Attribute:
Attribute_Label: LOCATION1, LOCATION2
Attribute_Definition:
Notes on location of this particular map unit within the state.
Some state maps have differing lithologic descriptions for a
single geologic unit in different geographic portions of the
state. (String of width 60)
Attribute_Domain_Values:
Unrepresentable_Domain: Plain text with a minimum of abbreviation
Attribute:
Attribute_Label: COMMENTS
Attribute_Definition:
Other information from the map explanation. (String of width 70)
Attribute_Domain_Values:
Unrepresentable_Domain: Plain text with a minimum of abbreviation
Attribute:
Attribute_Label: MTCARB
Attribute_Definition:
Summary field used for symbolizing derivative maps. (String of width 3)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: H
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: L
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: M
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: MH
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ML
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: W
Enumerated_Domain_Value_Definition:
Attribute:
Attribute_Label: MTK
Attribute_Definition:
Summary field used for symbolizing derivative maps. (String of width 3)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: H
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: L
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: M
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: W
Enumerated_Domain_Value_Definition:
Attribute:
Attribute_Label: MTBASE
Attribute_Definition:
Summary field used for symbolizing derivative maps. (String of width 3)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: H
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: L
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: M
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: MH
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ML
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: W
Enumerated_Domain_Value_Definition:
Attribute:
Attribute_Label: MTFAM
Attribute_Definition:
Summary field used for symbolizing derivative maps. (String of width 3)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 2
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 3
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 4
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 5
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 6
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 7
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 8
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 9
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: W
Enumerated_Domain_Value_Definition:
Attribute:
Attribute_Label: MTPHOS
Attribute_Definition:
Summary field used for symbolizing derivative maps. (String of width 3)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: (no value)
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: H
Enumerated_Domain_Value_Definition:
Attribute:
Attribute_Label: MTSG
Attribute_Definition:
Summary field used for symbolizing derivative maps. (String of width 4)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: fg
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: fp
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: mt
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: W
Enumerated_Domain_Value_Definition:
Attribute:
Attribute_Label: MTBATHAB
Attribute_Definition:
Summary field used for symbolizing derivative maps. (String of width 10)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: carbonate
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: mt
Enumerated_Domain_Value_Definition:
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: some carb
Enumerated_Domain_Value_Definition:
Attribute:
Attribute_Label: LITHA
Attribute_Definition:
Standardized lithologic description (some abbreviations) (String of width 20)
Major lithology, expressed using combinations of standardized lithologic terms. (String of width 120)
Attribute_Domain_Values:
Unrepresentable_Domain: plain text in three forty-column sections
Attribute:
Attribute_Label: LITH_MINOR
Attribute_Definition:
Minor lithology, expressed using combinations of standardized lithologic terms. (String of width 200)
Attribute_Domain_Values:
Unrepresentable_Domain: plain text in three forty-column sections
Attribute:
Attribute_Label: LITHOLOGY
Attribute_Definition:
Lithology, expressed using combinations of standardized lithologic terms. (String of width 254)
Attribute_Definition:
Attribute_Domain_Values:
Unrepresentable_Domain: plain text
Attribute:
Attribute_Label: AGE
Attribute_Definition:
Text combined from Era, System, and Series fields. (String of width 72)
Attribute_Domain_Values:
Unrepresentable_Domain:
composite plain text using standard names for geologic time periods
Attribute:
Attribute_Label: MTLITH
Attribute_Definition:
Abbreviated lithology used for symbolization. (String of width 40)
Attribute_Domain_Values:
Unrepresentable_Domain: composite text of lithology fields, some abbreviations
Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Cindy Dean
Contact_Organization: Interior Columbia Basin Ecosystem Management Project
Contact_Address:
Address_Type: mailing and physical
Address: 112 E. Poplar Street
City: Walla Walla
State_or_Province: WA
Postal_Code: 99362
Country: USA
Contact_Voice_Telephone: (509) 522-4030
Resource_Description: US Geological Survey Open-File Report 95-0691
Distribution_Liability:
This report is preliminary and has not been reviewed for conformity with US Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, product, or firm names is for desciptive purposes only and does not imply endorsement by the US Government.