Tuolumne Intrusive Suite
The Tuolumne Intrusive Suite is one of several intrusive suites in Yosemite National Park. These also include
- Sentinel granodiorite
- Fine Gold Intrusive Suite
- Intrusive Suite of Buena Vista Crest
- Intrusive Suite of Sonora Pass
- Intrusive Suite of Yosemite Valley
The age and composition of the Tuolumne Intrusive Suite[]
The Tuolumne Intrusive Suite is the youngest and most extensive of the intrusive suites of Yosemite National Park, and also comprises about 1/3 of the park's area, is the most extensive intrusive suite in the Park. It contains rock types including Half Dome Granodiorite and Cathedral Peak Granite,[1] also, Kuna Crest Granodiorite. Oldest to youngest rocks are
- Kuna Crest Granodiorite,
- Half Dome Granodiorite,
- Cathedral Peak Granodiorite (which is about 86 million years old), to
- .
The youngest, smallest, and most central rock body is of the Johnson Granite Porphyry, a variety of porphyry.[2]
The southwestern part of the Tuolumne Intrusive Suite is made up of Half Dome Granodiorite.[2]
The Tuolumne Intrusive Suite and Cathedral Peak Granodiorite[]
The largest pluton of the Tuolumne Intrusive Suite is Cathedral Peak Granodiorite, which extends long distances both the north and south of Tuolumne Meadows.[2]
See also[]
- Kuna Crest
- Kuna Peak
References[]
External links and references[]
- Geology of California
- Geology of Yosemite National Park
- Geology stubs