| State | Oregon |
|---|---|
| Name | May Creek Schist |
| Geologic age | Paleozoic(?) to Jurassic |
| Lithologic constituents |
Major
Metamorphic > Schist (Amphibolite)Includes quartz-biotite schist and quartzofeldspathic schist
Metamorphic > Amphibolite (Amphibolite)Includes amphibole schist, metaporphyry, metadiorite, and metagabbro
Incidental
Metamorphic > Metasedimentary > Metaclastic > Quartzite (Amphibolite)
|
| Comments | Unit consists of a structurally higher subunit of metasedimentary rocks (May Creek Schist) and a structurally lower subunit of amphibolite as mapped by Irwin (1994). |
| References | Walker, G.W. and MacLeod, N.S., 1991, Geologic map of Oregon: U.S. Geological Survey, scale 1:500,000.Irwin, W.P., 1994, Geologic map of the Klamath Mountains, California and Oregon: U.S. Geological Survey Miscellaneous Investigations Series Map I-2148, scale 1:500,000.https://pubs.er.usgs.gov/publication/i2148 Donato, M.M., 1992, Geologic guide for the northern Klamath Mountains--part 2, Red Mountain to Bald Mountain (May Creek Schist and related rocks): Oregon Geology, v. 54, no. 2, p. 34-39. |
| NGMDB product | |
| Counties | Douglas - Jackson - Josephine |