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  • Usage in publication:
    • Collier Butte diorite
  • Modifications:
    • Named
    • Geochronologic dating
  • Dominant lithology:
    • Diorite
  • AAPG geologic province:
    • Klamath Mountains province
Publication:

Dott, R.H., Jr., 1965, Mesozoic-Cenozoic tectonic history of the southwestern Oregon coast in relation to Cordilleran orogenesis: Journal of Geophysical Research, B, Solid Earth and Planets, v. 70, no. 18, p. 4687-4707.


Summary:

[Probably named for Collier Butte, Curry Co, OR]. Shown on sketch map of geologic provinces of southwest OR and northwest CA as pluton intruding Dothan Formation. K-Ar age on hornblende from sample collected at top part of Collier Butte (T37S R12W) yielded isotopic age of 151 +/-12Ma.

Source: GNU records (USGS DDS-6; Menlo GNULEX).


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates published by U.S. Geological Survey authors.

"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).

Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).

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