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Distribution and quality of potential sources of aggregate infrastructure resources project area, Colorado-Wyoming

Frequently-anticipated questions:

• What does this data set describe?
  1. How should this data set be cited?
  2. What geographic area does the data set cover?
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
  5. What is the general form of this data set?
  6. How does the data set represent geographic features?
  7. How does the data set describe geographic features?
• Who produced the data set?
  1. Who are the originators of the data set?
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
• Why was the data set created?
• How was the data set created?
  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
  3. What similar or related data should the user be aware of?
• How reliable are the data; what problems remain in the data set?
  1. How well have the observations been checked?
  2. How accurate are the geographic locations?
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
  5. How consistent are the relationships among the data, including topology?
• How can someone get a copy of the data set?
  1. Are there legal restrictions on access or use of the data?
  2. Who distributes the data?
  3. What's the catalog number I need to order this data set?
  4. What legal disclaimers am I supposed to read?
  5. How can I download or order the data?
• Who wrote the metadata?

What does this data set describe?

1. How should this data set be cited?

   Langer, William H. , Green, Gregory N. , Daniel H. Knepper, Jr., Lindsey, David A. , Moore, David W. , Nealey, David, and John C. Reed, Jr., 1997, Distribution and quality of potential sources of aggregate infrastructure resources project area, Colorado-Wyoming: U.S. Geological Survey Open-File Report 97-477, U.S. Geological Survey, Denver, Colorado.

   Online Links:

   • <http://pubs.usgs.gov/of/1997/ofr-97-0477/>

2. What geographic area does the data set cover?

3. What does it look like?

4. Does the data set describe conditions during a particular time period?

   Calendar_Date: 1997

   Currentness_Reference: publication date

5. What is the general form of this data set?

   Geospatial_Data_Presentation_Form: map

6. How does the data set represent geographic features?
   1. How are geographic features stored in the data set?

      This is a vector data set. It contains the following vector data types (SDTS terminology):

      • entity point
      • complete chain
      • GT-polygon composed of chains

   2. What coordinate system is used to represent geographic features?

7. How does the data set describe geographic features?

   COLO_GEO.PAT

   Colorado geological map (Source: OFR-97-0477)

   LITHO

   Lithology of geologic rock units (Source: OFR-97-0477)

   Value	Definition
   andesite
   ash flow
   ash flow-andesite
   ash flow-latite
   basalt
   carbs	Carbonate rock
   cemented s&g	cemented sand and gravel
   coarse granite
   conglomerate
   felsic intrusive
   gabbro&syenite
   glacial
   gneiss
   gneiss$schist
   granite
   landslide
   mixed carbs	mixed carbonate rocks
   mixed seds	Mixed sedimentary rocks
   mixed shale
   quartzite
   s&g	sand and gravel
   sand
   sandstone
   shale
   tuff
   water
   wx granite

   PHYS

   Physical quality (Source: OFR-97-0477)

   Value	Definition
   fair	fair physical qualities
   poor	Poor physical qualities
   sat	Satisfactory physical quality
   unknown	Unknown physical qualities
   unsuit	Unsuitable physical qualities

   CHEM

   Chemical qualities (Source: OFR-97-0477)

   Value	Definition
   inc	Innocuous chemical quality
   del	Deleterious chemical quality
   (blank)	unknown chemical quality

   NAME

   Geologic unit symbol (Source: OFR-97-0477)

   COLO_GEO.PAT

   Geological units at specific locations (same attributes as polygon coverage COLO_GEO.PAT) (Source: OFR-97-0477)

   COLO_LIN.AAT

   Linear geologic map units (Source: OFR-97-0477)

   NAME

   Geologic map unit name (Source: OFR-97-0477)

   Value	Definition
   TKi
   Tmi
   Yam

   WYO_GEO.PAT

   Wyoming geological map (Source: OFR-97-0477)

   LITHO

   Lithology of rock unit (Source: OFR-97-0477)

   Value	Definition
   anorthosite
   cemented s&g	Cemented sand and gravel
   gneiss
   granite
   mixed seds	Mixed sedimentary rocks
   s&g	sand and gravel
   sandstone
   shale

   PHYS

   Physical quality (Source: OFR-97-0477)

   Value	Definition
   poor	Poor physical quality
   sat	Satisfactory physical quality
   unknown	Unknown physical quality
   unsuit	Unsuitable physical quality

   CHEM

   Chemical qualities (Source: OFR-97-0477)

   Value	Definition
   inc	Innocuous chemical quality
   (blank)	unknown chemical quality
   unknown	Unknown chemical quality

   NAME

   Geologic unit symbol (Source: OFR-97-0477)

   WYO_GEO.PAT

   Wyoming geological units at specific locations (same attributes as polygon coverage WYO_GEO.PAT) (Source: OFR-97-0477)

Who produced the data set?

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • William H. Langer
   • Gregory N. Green
   • Daniel H. Knepper, Jr.
   • David A. Lindsey
   • David W. Moore
   • David Nealey
   • John C. Reed, Jr.

2. Who also contributed to the data set?

3. To whom should users address questions about the data?
   Langer, William H
   USGS-GEO-CRG-MRS
   Mail Stop 973, USGS
   P.O. Box 25046
   Denver, CO 80225
   US
   

   303-236-1249 (voice)
   blanger@usgs.gov
   

Why was the data set created?

Planners and other decision makers responsible for resource management should find this map useful in regional planning and land use management. Because statutory regulations, technological capabilities, available funding, and land-use priorities vary from place to place and can be expected to change with time, this map is designed to provide a resource data base that will be useful over the years. This map is in digital format and can be used with other digital data sets, according to the specific needs of a particular planning issue. As planning criteria change, the selection of pertinent resource characteristics can be adjusted to meet the changing needs.

How was the data set created?

1. From what previous works were the data drawn?

   Green (1992) (source 1 of 1)

   Green, G.N., 1992, The Digital Geologic Map of Colorado in ARC/INFO Format: U.S. Geological Survey Open-File Report 92-507.

   Type_of_Source_Media: online ARC/INFO files

   Source_Contribution: This digital database was used as a base map

2. How were the data generated, processed, and modified?

   Date: 1995 (process 1 of 1)

   This map was prepared by attributing the Digital Geologic Map of Colorado - USGS Open File Report 92-0507 (Green, 1992) with parameters reflecting the quality of unconsolidated materials and bedrock for use as aggregate (sand and gravel or crushed stone). The terminology and classification techniques used on this map are briefly described above, and are described in more detail in USGS Open File Report 95-582 (Langer and Knepper, 1995).

3. What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?

1. How well have the observations been checked?

2. How accurate are the geographic locations?

3. How accurate are the heights or depths?

4. Where are the gaps in the data? What is missing?

   complete

5. How consistent are the relationships among the observations, including topology?

   This map was prepared by attributing the Digital Geologic Map of Colorado - USGS Open File Report 92-0507 (Green, 1992) with parameters reflecting the quality of unconsolidated materials and bedrock for use as aggregate (sand and gravel or crushed stone).

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: none

Use_Constraints: none

1. Who distributes the data set? (Distributor 1 of 1)
   USGS Information Services
   Box 25286, Denver Federal Center
   Denver, Colorado 80255-0046
   USA
   

   1-888-ASK-USGS (voice)
   1-303-202-4695 (FAX)
   infoservices@usgs.gov
   

2. What's the catalog number I need to order this data set?

   US Geological Survey Open-File Report 97-0477

3. What legal disclaimers am I supposed to read?

   This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey (USGS) editorial standard nor with the North American stratigraphic codes. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the USGS. Although these data have been used by the USGS and have been successfully imported into data base programs, no warranty, expressed or implied, is made by the USGS as to how successfully or accurately the data can be imported into any specific application software running on any specific hardware platform. The fact of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in connection therewith.

4. How can I download or order the data?
   • Availability in digital form:

     Data format:

     Geologic units and base map data in format ArcInfo export (version 7.x)

     Network links:

     <http://pubs.usgs.gov/of/1997/ofr-97-0477/c_pol.e00> <http://pubs.usgs.gov/of/1997/ofr-97-0477/c_roads.e00> <http://pubs.usgs.gov/of/1997/ofr-97-0477/clipper.e00> <http://pubs.usgs.gov/of/1997/ofr-97-0477/colo_dec.e00> <http://pubs.usgs.gov/of/1997/ofr-97-0477/colo_geo.e00> <http://pubs.usgs.gov/of/1997/ofr-97-0477/colo_lin.e00> <http://pubs.usgs.gov/of/1997/ofr-97-0477/w_roads.e00> <http://pubs.usgs.gov/of/1997/ofr-97-0477/wyo_dec.e00> <http://pubs.usgs.gov/of/1997/ofr-97-0477/wyo_geo.e00>

   • Cost to order the data: none

Who wrote the metadata?

Dates:

Last modified: 03-Aug-2000

Metadata author:

Jennifer Lenz
US Geological Survey
12201 Surise Valley Drive, Mail Stop 918
Reston, VA 20192
USA

703-648-6974 (voice)
703-648-6560 (FAX)
pschweitzer@usgs.gov

Metadata standard:

Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)