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The Digital Geologic Map of New Mexico in ARC/INFO Format

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?

   Green, Gregory N. , and Jones, Glen E. , 1997, The Digital Geologic Map of New Mexico in ARC/INFO Format: U.S. Geological Survey Open-File Report OFR 97-0052, U.S. Geological Survey, Denver.

   Online Links:

   • <http://pubs.usgs.gov/of/1997/ofr-97-0052/>

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: -109.3

   East_Bounding_Coordinate: -103.0

   North_Bounding_Coordinate: 37.0

   South_Bounding_Coordinate: 31.3

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):

      • Point (12527)
      • String (37133)
      • GT-polygon composed of chains (12528)

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

      The map projection used is Lambert Conformal Conic.

      Projection parameters:

      Standard_Parallel: 33

      Standard_Parallel: 45

      Longitude_of_Central_Meridian: -106

      Latitude_of_Projection_Origin: 0

      False_Easting: 0.00000

      False_Northing: 0.00000

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 1.0
      Ordinates (y-coordinates) are specified to the nearest 1.0
      Planar coordinates are specified in Meters

      The horizontal datum used is North American Datum of 1927.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6378206.4.
      The flattening of the ellipsoid used is 1/294.98.
      

7. How does the data set describe geographic features?

   Entity_and_Attribute_Overview:

   NEWMEXICO.PAT:
   COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC
      17  P1                     3     3     I      -
      20  HP                     3     3     I      -
      23  NAME                   8     8     C      -
   
   

   P1 is a GSMAP shorthand heritage attribute. HP is a color symbol from the NMSHD shadeset. NAME is the formation name.

   NEWMEXICO.AAT:
   
   COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC
      29  P1                     3     3     I      -
      32  HP                     3     3     I      -
      35  NAME                  25    25     C      -
   

   P1 is a GSMAP shorthand heritage attribute. HP is a color symbol from the NMLIN lineset NAME is the type of geologic line.
   

   Entity_and_Attribute_Detail_Citation: none

Who produced the data set?

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • Gregory N. Green
   • Glen E. Jones

2. Who also contributed to the data set?

   Gregory N. Green of U.S. Geological Survey and Orin Anderson and Glen Jones of New Mexico Bureau of Mines and Mineral Resources, Socorro, New Mexico
   

3. To whom should users address questions about the data?
   Gregory N. Green
   U.S. Geological Survey
   geologist
   MS 905, USGS, Denver Federal Center
   Denver, CO 80225
   USA
   

   (303) 236-5390 (voice)
   none (FAX)
   ggreen@usgs.gov
   

Why was the data set created?

This dataset was developed to provide geologic map GIS database of New Mexico for use in future spatial analysis by a variety of users.
This database is not meant to be used or displayed at any scale other than 1:500,000.

How was the data set created?

1. From what previous works were the data drawn?

   Anderson and Jones (1994) (source 1 of 1)

   Anderson, Orin J. , and Jones, Glen E. , 1994, The Digital Geologic Map of New Mexico: U.S. Geological Survey Open-File Report OFR 408-A and B, New Mexico Bureau of Mines and Mineral Resources, Socorro, New Mexico.

   Type_of_Source_Media: disc

   Source_Scale_Denominator: 500000

   Source_Contribution:

   Orin Anderson created the state scale geologic map of New Mexico. Orin Anderson and Glen Jones created a digital New Mexico graphic in 1994. Greg Green and Glen Jones converted this to ARC/INFO in 1997.

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

   Date: 1994 (process 1 of 1)

   This geologic map was prepared as part of a study of digital methods and techniques as applied to complex geologic maps. The geologic map was digitized in GSMAP at Socorro, New Mexico by Orin Anderson and Glen Jones and published as the Geologic Map of New Mexico 1:500,000 (Anderson and Jones, 1994) in GSMAP format. The vector line work and polygon point labels were converted to ARC/INFO format on a DOS based PC with GSMARC (Green and Selner,1988). These data were transferred to a Data General UNIX system and loaded into ARC/INFO. Each vector and polygon was given attributes derived from the original 1994 GSMAP geologic map. Both digital versions are at 1:500,000 scale using the Lambert Conformal Conic map projection parameters of the State base map.

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?

   compiled mapping field checked by NMBM

2. How accurate are the geographic locations?

   Compiled from 1:250,000 scale maps

3. How accurate are the heights or depths?

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

   finished

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

   Polygon and chain-node topology present.

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:

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.

1. Who distributes the data set? (Distributor 1 of 1)
   U.S. Geological Survey
   Database Administrator
   MS 905, USGS, Denver Federal Center
   Denver, CO 80225
   USA
   

   (303) 236-5390 (voice)
   none (FAX)
   ggreen@usgs.gov
   

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

   USGS Open-File Report 95-0072

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. This data base GIS is not meant to be used or displayed at any scale other than 1:500,000.

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

     Data format:	New Mexico Map in format ARC/INFO export (version 7.1.2) Size: 22 Mbyte
     Network links:	<http://pubs.usgs.gov/of/1997/ofr-97-0052/>

   • Cost to order the data: none

Who wrote the metadata?

Dates:

Last modified: 07-Apr-1999
Last Reviewed: 02-Mar-1999

Metadata author:

U.S. Geological Survey
c/o Gregory N. Green
MS 905, USGS, Denver Federal Center
Denver, CO 80225
USA

(303) 236-5390 (voice)
ggreen@usgs.gov

Metadata standard:

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