Geologic and structure map of the Choteau 1 x 2 degree quadrangle, western Montana: a digital database.

Metadata also available as - [Questions & Answers] - [Parseable text] - [XML]

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Melvill R. Mudge
Originator: Robert L. Earhart
Originator: James W. Whipple
Originator: Jack E. Harrison
Originator: Steven R. Munts
Originator: Jeffery T. Silkwood
Publication_Date: 2000
Title:
Geologic and structure map of the Choteau 1 x 2 degree quadrangle, western Montana: a digital database.
Edition: Version 1.0
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: U.S. Geological Survey Miscellaneous Investigations Series Map
Issue_Identification: I-1300
Publication_Information:
Publication_Place: Menlo Park, CA
Publisher: U. S. Geological Survey
Online_Linkage: http://pubs.usgs.gov/imap/i1300/
Description:
Abstract:
The geologic and structure map of Choteau 1 x 2 degree quadrangle (Mudge and others, 1982) was originally converted to a digital format by Jeff Silkwood (U.S. Forest Service and completed by the U.S. Geological Survey staff and contractor at the Spokane Field Office (WA) in 2000 for input into a geographic information system (GIS). The resulting digital geologic map (GIS) database can be queried in many ways to produce a variey of geologic maps. Digital base map data files (topography, roads, towns, rivers and lakes, etc.) are not included: they may be obtained from a variety of commercial and government sources. This database is not meant to be used or displayed at any scale larger than 1:250,000 (e.g. 1:100,000 or 1:24,000. The digital geologic map graphics and plot files (chot250k.gra/.hp/.eps and chot-map.pdf) that are provided in the digital package are representations of the digital database. They are not designed to be cartographic products.
Purpose:
This dataset was developed to provide geologic map GIS of the Choteau 1:250,000 quadrangle for use in future spatial analysis by a variety of users. These data can be printed in a variety of ways to display various geologic features or used for digital analysis and modeling. This database is not meant to be used or displayed at any scale larger than 1:250,000 (e.g. 1:100,000 or 1:24,000).
Supplemental_Information:
This GIS consists of two major Arc/Info datasets, a line and polygon file (chot250k) containing geologic contact and structures (lines) and geologic map rock units (polygons), and a point file (chot250kp) containing structural point data for plunging folds.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2000
Currentness_Reference: Publication date
Status:
Progress: complete
Maintenance_and_Update_Frequency: As needed.
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -114.00
East_Bounding_Coordinate: -112.00
North_Bounding_Coordinate: 48.00
South_Bounding_Coordinate: 47.50
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: geology
Theme_Keyword: geologic maps
Theme_Keyword: geospatial datasets
Theme_Keyword: geologic structure
Theme_Keyword: bedrock geologic units
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
Theme_Keyword: geoscientificInformation
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: Montana
Place_Keyword: Choteau
Place_Keyword: Powell County
Place_Keyword: Lewis and Clark County
Place_Keyword: Lake County
Place_Keyword: Flathead County
Place_Keyword: Missoula County
Place_Keyword: Teton County
Place_Keyword: Pacific Northwest
Place_Keyword: USA
Place:
Place_Keyword_Thesaurus: Augmented FIPS 10-4 and FIPS 6-4
Place_Keyword: f30077 = Powell
Place_Keyword: f30049 = Lewis and Clark
Place_Keyword: f30047 = Lake
Place_Keyword: f30029 = Flathead
Place_Keyword: f30063 = Missoula
Place_Keyword: f30099 = Teton
Access_Constraints: none
Use_Constraints:
This digital database is not meant to be used or displayed at any scale larger than 1:250,000 (e.g. 1:100,000).
Any hardcopies utilizing these data sets shall clearly indicate their source. If the user has modified the data in any way they are obligated to describe the types of modifications they have performed on the hardcopy map. User specifically agrees not to misrepresent these data sets, nor to imply that changes they made were approved by the US Geological Survey.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Pamela D. Derkey
Contact_Organization: U.S. Geological Survey
Contact_Position: geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 904 W. Riverside Ave., Rm. 202
City: Spokane
State_or_Province: WA
Postal_Code: 99201
Country: USA
Contact_Voice_Telephone: 1-509-368-3114
Contact_Facsimile_Telephone: 1-509-368-3199
Contact_Electronic_Mail_Address: pderkey@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: http://geo-nsdi.er.usgs.gov/metadata/map-i/1300/i1300.png
Browse_Graphic_File_Description:
Simplified, reduced-size image of the geologic information on the map. 1021x749 pixels, 24-bit color.
Browse_Graphic_File_Type: PNG
Data_Set_Credit:
The Choteau geologic map database was initially prepared by Jef Silkwood (U.S. Forest Service) from the geologic map by Mudge and others (1982). These preliminary digital files were transferred to the U.S. Geological Survey (USGS) in 1999. Robert J. Miller (USGS) merged the geology (lines and polygons) and structure (lines) files into a single topological ArcInfo dataset. Steven R. Munts (contractor) digitized additional structural features (folds) from Mudge and others (1982). The digital files were then augmented with an interim geologic map data model (data base), further attributed and edited, and then plotted and compared to the published geologic map to check for digitizing and attribute errors. All processing by the U.S. Geological Survey was done in ArcInfo version 7.2.1 installed on a Unix-based Sun Ultra workstation.
Pamela D. Derkey and Robert J. Miller (both of the USGS) provided technical assistance with the geologic systems data model, metadata, digital documentation, and map projections; Steven R. Munts (contractor) digitized new linework, edited digital files, combined existing data sets, built look-up tables, and prepared the composite dataset.
Native_Data_Set_Environment: SunOS, 5.7, sun4u UNIX ARC/INFO version 7.2.1
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Attribute accuracy was verified by manual comparision of the source with hard copy printouts, plots, and on-screen evaluation.
Logical_Consistency_Report:
Polygon and chain-node topology present. Segments making up the outer and inner boundaries of a polygon tie end-to-end to completely enclose the area. Line segments are a set of sequentially numbered coordinate pairs. No duplicate features exist nor duplicate points in a data string. Intersecting lines are separated into individual line segments at the point of intersection. All nodes are represented by a single coordinate pair, which indicates the beginning or end of a line segment. The neat line was generated by mathematically generating the four sides of the quadrangle, densifying the lines of latitude and projecting the file to a Transverse projection (without a y-shift).
Completeness_Report:
All geologic units were compiled from Mudge and others (1982) at a scale of 1:250,000.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The horizontal position accuracy for the digital data is no better than 55 meters based on the digitizing RMS error.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Mudge, M.R.
Originator: Earhart, R.L.
Originator: Whipple, J.W.
Originator: Harrison, J.E.
Publication_Date: 1982
Title:
Geologic and structure map of the Choteau 1 x 2 degree quadrangle, western Montana
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: U.S. Geological Survey Miscellaneous Investigations Series Map
Issue_Identification: I-1300
Publication_Information:
Publication_Place: Denver, CO
Publisher: U.S. Geological Survey
Source_Scale_Denominator: 250000
Type_of_Source_Media: paper map
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1982
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Mudge and others (1982)
Source_Contribution: This is the source for all the datasets.
Process_Step:
Process_Description:
Geologic map (Mudge and others, 1982) was initially prepared by Jef Silkwood (U.S. Forest Service) and given minimal attributing. Lithology and faults were digitized (1999)
The contacts, lithology and faults datasets were compiled electronically into a single topologically correct coverage by R. J. Miller (USGS) using ARC/INFO ver. 7.2.1 on a Sun Unix system (December, 1999).
S. R. Munts (contractor) edited the dataset and attributed it with an interim geologic data model. He also digitized the folds from Mudge and others (1982) on an Altek digitizing tablet (RMS input error = 0.003) and incorporated the data into the Choteau GIS.
Process_Date: 1999 - 2001
Process_Step:
Process_Description: Creation of original metadata record
Process_Date: 20010615
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Pamela D. Derkey
Contact_Position: geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 904 West Riverside Avenue, Rm 202
City: Spokane
State_or_Province: WA
Postal_Code: 99201
Country: USA
Contact_Voice_Telephone: 1-509-368-3114
Contact_Facsimile_Telephone: 1-509-368-3199
Contact_Electronic_Mail_Address: pderkey@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
Point_and_Vector_Object_Count: 3007
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 8382
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 3006
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Transverse Mercator
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 1.0
Longitude_of_Central_Meridian: -113
Latitude_of_Projection_Origin: 0
False_Easting: 0.0
False_Northing: 0.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 55
Ordinate_Resolution: 55
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:
Overview_Description:
Entity_and_Attribute_Overview:
The 'Geologic and structure map of the Choteau 1 x 2 degree quadrangle, Montana: a digital database' report (chot250k.pdf) contains a detailed description of each attribute code and a reference to the associated map symbols on the map source materials. The GIS includes a geologic line work arc attribute table, chot250k.aat, that relates to the chot250k.con (contact look-up table), chot250k.st2 (structure look-up table), chot250k.lgu (linear geologic units table), and the chot250k.ref (source reference look-up table) files; and a rock unit polygon attribute table, chot250k.pat, that relates to the chot250k.ru (rock unit look-up table) and chot250k.ref (source reference look-up table) files; and a point attribute table, chot250kp.pat, that relates to the chot250p.sym (symbol description look-up table) and the chot250p.ref (source reference look-up table).
Entity_and_Attribute_Detail_Citation: http://pubs.usgs.gov/imap/i1300/chot250k.pdf
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Pamela D. Derkey
Contact_Position: geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 904 West Riverside Avenue, Rm 202
City: Spokane
State_or_Province: WA
Postal_Code: 99201
Country: USA
Contact_Voice_Telephone: 1-509-368-3114
Contact_Facsimile_Telephone: 1-509-368-3199
Contact_Electronic_Mail_Address: pderkey@usgs.gov
Resource_Description: USGS Miscellaneous Investigations Series Map I-1300
Distribution_Liability:
The U.S. Geological Survey (USGS) provides these geographic data "as is". The USGS makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. The USGS further makes no warranties, either expressed or implied as to any other matter whatsoever, including, without limitation, the condition of the product, or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these data have been processed successfully on computers at the USGS, no warranty, expressed or implied, is made by the USGS regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty.
In no event shall the USGS have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of use of or reliance on the geographic data or arising out of the delivery, installation, operation, or support by USGS.
This digital geologic map GIS of the Choteau 1:250,000 quadrangle, Montana, is not meant to be used or displayed at any scale larger than 1:250,000 (e.g. 1:100,000 or 1:24,000).
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ARCE
Format_Version_Number: 7.2.1
Format_Information_Content:
Geologic units and structural features as polygons, arcs, and points.
File_Decompression_Technique: uncompress and tar
Transfer_Size: 13.2
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: http://pubs.usgs.gov/imap/i1300/chot250k.tar.Z
Fees: none
Metadata_Reference_Information:
Metadata_Date: 20160205
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Peter N Schweitzer
Contact_Organization: USGS Midwest Area
Contact_Position:
Collection manager, USGS Geoscience Data Clearinghouse, http://geo-nsdi.er.usgs.gov/
Contact_Address:
Address_Type: mailing address
Address:
Mail Stop 954
12201 Sunrise Valley Dr
City: Reston
State_or_Province: VA
Postal_Code: 20192-0002
Country: USA
Contact_Voice_Telephone: 703-648-6533
Contact_Facsimile_Telephone: 703-648-6252
Contact_Electronic_Mail_Address: pschweitzer@usgs.gov
Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Access_Constraints: none
Metadata_Use_Constraints: none
This page is <https://geo-nsdi.er.usgs.gov/metadata/map-i/1300/metadata.html>
Generated by mp version 2.9.48 on Tue Jul 03 20:04:44 2018