Entry_ID: (required)
Entry_Title: Mineral Resources Data System (MRDS)
Group: Data_Set_Citation
  Originator(s): George T. Mason, Jr.; Raymond E. Arndt
  Title: Mineral Resources Data System (MRDS)
  Publication: U.S. Geological Survey Digital Data Series
  Publication_Date: 1996
  Publication_Place: Reston, VA
  Publisher: U.S. Geological Survey
  Edition: 1
End_Group
Keyword: Minerals
Keyword: Mineral resources
Keyword: Commodities
Keyword: Mineral deposits
Group: Temporal_Coverage
  Start_date: 1968
  Stop_date: 1998
End_Group
Data_Set_Progress: Complete
Group: Spatial_Coverage
  Southernmost_Latitude: -90
  Northernmost_Latitude: 90
  Westernmost_Longitude: -180
  Easternmost_Longitude: 180
End_Group
Location: LD10 = North America
Location: LD20 = Central America
Location: LD30 = South America
Location: LD40 = Europe
Location: LD50 = Africa
Location: LD60 = Australia and New Zealand
Location: LD70 = Asia
Location: LD80 = Asia Minor and Middle East
Location: LD90 = Southeast Asia
Group: Data_Resolution
  Latitude_Resolution: 1
  Longitude_Resolution: 1
End_Group
  Access_Constraints: none
  Use_Constraints: none
Originating_Center: (required)
Group: Data_Center
  Data_Center_Name: U.S. Geological Survey Information Services
  Dataset_ID: USGS Digital Data Series DDS-20
Group: Data_Center_Contact
  Last_name: U.S. Geological Survey Information Services
  First_name: N/A
  Phone: 1-8888-ASK-USGS
  Group: Address
    Box 25286, Denver Federal Center
    Denver, CO 80225-0286
    USA
  End_Group
End_Group
End_Group
Group: Distribution
  Distribution_Media: CD-ROM
  Distribution_Format : GSSEARCH database format, documented in software/gssearch.doc
  Fees: See http://mapping.usgs.gov/esic/prices/index.html
End_Group
Group: Reference
End_Group
Group: Summary
  MRDS was developed primarily to store descriptive and archived
  historical data about mineral deposit sites, including mines, prospects,
  and occurrences. MRDS became a reference tool for Federal, State, and
  nongovernment scientists seeking location and descriptive geologic
  information about a deposit.
  
  MRDS, as of this release, contains 111,955 variable-length records of
  metallic and nonmetallic mineral resources of the world. A record
  contains descriptive information about mineral deposits and mineral
  commodities. The types of information in the data base include deposit
  name, location, commodity, deposit description, geologic characteristics,
  production, reserves, potential resources, and references. See file
  TECHINFO.DOC under "Read the MRDS Information files..." of the main menu
  for a complete list of all available fields in a MRDS record.
  
  The records in this data base are classified as site, district, and
  regional records. This data base is continuously being modified through
  the addition of new records and improvement of existing records.
  
  USGS mineral deposit models were described in volumes edited by Cox
  and Singer (1986) and Bliss (1992). Codes for countries, states, and
  other political units were provided by the U.S. National Bureau of
  Standards (1979, 1984). Hydrologic unit codes are those used by the U.S.
  Geological Survey Office of Water Data Coordination and GIRAS
  (Geographic Information Retrieval and Analysis System). Deposit size
  codes are based on the deposit sizes that were used by Guild (1981).
  
  This CD-ROM contains the software GSSEARCH, which is used to search,
  retrieve, and print the MRDS records. GSSEARCH is software that was
  developed at the U.S. Geological Survey as an outgrowth of a system to
  manage geologic bibliographic information. It supports fixed- or
  variable-length data and allows for full-text searching of specific
  fields that have been indexed. It presents the selected records back to
  the user for perusal in both browse and detail formats. Also, the
  records may be printed or written to a disk file in four different
  formats: ascii, fixed, comma delimited, and DBASE compatible.
End_Group
Group: DIF_Author
  Last_name: Mason
  First_name: George
  Email: gmason@usgs.gov
  Phone: (703) 648-4404
  Group: Address
    915 National Center
    Reston, VA 20192
    USA
  End_Group
End_Group
DIF_Revision_Date: 19980923
Science_Review_Date: