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Half Dome Granodiorite traces to early Late Cretaceous. Its age is between 85 and 83.4 (+/-1 to 2%) Ma, with average age of 84.1 Ma. It is younger than Sentinel granodiorite (88.4 Ma), and older than Cathedral Peak granite (83.7 Ma). [4] Half Dome Granodiorite is the Valley's youngest plutonic rock. [5]
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] The southwestern part of the Tuolumne Intrusive Suite is made up of Half Dome Granodiorite. [2] The youngest, smallest, and most central rock body is of the Johnson Granite Porphyry [2]
It is found west of Half Dome Granodiorite, both north and south, to a western limit near Cookie Cliffs. All of Turtleback Dome, El Capitan, The Three Brothers, and Cathedral Rocks are made of El Capitan Granite [3] as is Elephant Rock. [4] El Capitan Granite makes up most of the granite found in the west half of the Yosemite Valley area. [5]
If summiting Half Dome is on your bucket list of the things to do before you die, better book the hike now. Alarmed by the deaths of four climbers on the world famous granite monolith since 2006 ...
Half Dome rises more than 4,737 ft (1,444 m) above the valley floor. 10 million years ago, vertical movement along the Sierra fault started to uplift the Sierra Nevada. [2] Subsequent tilting of the Sierra block and the resulting accelerated uplift of the Sierra Nevada increased the gradient of western-flowing streams. The streams consequently ...
Most of Half Dome’s fatal falls occur during rainy weather.) Opinion. Rohloff was the first fatality on the cables section since 2019. Each time, questions are raised about safety and what the ...
West Quarter Dome is a granodiorite dome, in the Tenaya Canyon area of Yosemite National Park. It is composed of Half Dome Granodiorite. [2] There are two domes, West Quarter Dome and East Quarter Dome, and they are right next to each other. [3] [4] [5] [6]
The park limits the number of people who can climb Half Dome to 300 per day, a cap aimed, in part, at reducing gridlock on the cables. If you go without a permit, and get caught, there’s a $280 ...