Grauch, Richard I.
URI(s)
Identifies LC/NAF RWO
Identifies RWO
Exact Matching Concepts from Other Schemes
Sources
- found: Weiland, E.F. Stream-sediment geochemical survey of the Bureau of Land Management's Arkansas Canyon Planning Unit in south-central (Canon city area) Colorado, 1981 (a.e.)t.p. (Richard I. Grauch, U.S. Geological Survey, Denver, Colo.)
- found: Metalliferous black shales and related ore deposits ... 1990:CIP t.p. (Richard I. Grauch)
Instance Of
Scheme Membership(s)
Collection Membership(s)
Change Notes
- 1983-07-25: new
- 1989-08-17: revised
Alternate Formats