- Usage in publication:
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- Giant Forest Granodiorite*
- Modifications:
-
- Named
- Geochronologic dating
- Dominant lithology:
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- Granodiorite
- AAPG geologic province:
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- Sierra Nevada province
Summary:
Named as oldest unit of Sequoia Intrusive Suite(new), for exposures in Giant Forest in east-central part of Giant Forest and west-central part of Triple Divide Peak 15' quads., Tulare Co., CA. Type locality is Moro Rock, just south of Giant Forest, Giant Forest quad. Crops out over a broad area in eastern part of Giant Forest and western part of Triple Divide Peak quads. Consists of medium-grained equigranular hornblende-rich granodiorite with mafic inclusions. Called Giant Forest pluton by Ross(1958). Intrudes Triassic and (or) Jurassic metamorphic rocks to southwest and granite of Lodgepole to east. Encloses in part, and appears genetically related to, other units of the suite. U-Pb ages of 97-102 Ma. Assigned to Cretaceous.
Source: GNU records (USGS DDS-6; Menlo GNULEX).
- Usage in publication:
-
- Giant Forest Granodiorite*
- Modifications:
-
- Areal extent
- AAPG geologic province:
-
- Sierra Nevada province
Summary:
Unit is geographically extended into the report area. Age is Cretaceous.
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 ([ ]).