- Usage in publication:
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- Goat Gabbro
- Modifications:
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- Named
- Dominant lithology:
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- Gabbro
- AAPG geologic province:
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- Okanogan province
Summary:
Goat Gabbro. Name proposed for unit in /Horseshoe Basin magma series [informal] (new). Mapped on Chopaka Mountain, in sec. 23, T. 40 N., R. 24 E., Toats Coulee Creek region, Okanogan Range, Okanogan County, Washington. Composed of a small, black, medium- to coarse-grained pluton with magmatic nongneissose texture. Age is Early to medial Cretaceous.
Type locality stated to be on Chopaka Mountain, sec. 23, T. 40 N., R. 24 E., Okanogan Co., WA.
["Horseshoe Basin magma series" considered informal. Term "Series" is applied formally only to chronostratigraphic units (ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). US geologic names lexicon, USGS Bull. 1520, p. 115-116, lists Goat Gabbro of Horseshoe Basin Group (explanation not given).]
Source: GNU records (USGS DDS-6; Menlo GNULEX); US geologic names lexicon (USGS Bull. 1520, p. 115-116).
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 ([ ]).