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Source

Mineral Resources Data System — metadata and documentation

U.S. Geological Survey (n.d.). Mineral Resources Data System — metadata and documentation. Version MRDS, as documented at the retrieval date. https://mrdata.usgs.gov/metadata/mrds.faq.html Retrieved 2026-09-07.

Authority tier
Peer-reviewed
Type
dataset
URL
https://mrdata.usgs.gov/metadata/mrds.faq.html
Licence
Public domain (work of the U.S. Government)
Retrieved by Lithoen
2026-09-07
Last re-checked
2026-09-07 (verified)

Known metadata gaps

Recorded explicitly rather than guessed.

  • publishedYear: the MRDS documentation page carries no publication date; the database is described as developed over several decades by hundreds of contributors.
  • version: MRDS is maintained continuously and the documentation names no release identifier.
  • Lineage unresolved at the level Lithoen needs. The work assembles values from publications it does not attribute item by item in the part retrieved, so no upstream can be named for any particular value and independence against another source stays UNKNOWN.