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The exposed geology of the Yosemite area includes primarily granitic rocks with some older metamorphic rock. The first rocks were laid down in Precambrian times, when the area around Yosemite National Park was on the edge of a very young North American continent. The sediment that formed the area first settled in the waters of a shallow sea ...
1984 (8th Session) Yosemite National Park (/ joʊˈsɛmɪti / yoh-SEM-ih-tee[5]) is a national park of the United States in California. [6][7] It is bordered on the southeast by Sierra National Forest and on the northwest by Stanislaus National Forest. The park is managed by the National Park Service and covers 759,620 acres (1,187 sq mi; 3,074 ...
List of tectonic plate interactions. Tectonic plate interactions are classified into three basic types: [1] Convergent boundaries are areas where plates move toward each other and collide. These are also known as compressional or destructive boundaries. Obduction zones occurs when the continental plate is pushed under the oceanic plate, but ...
Yosemite National Park Map. Yosemite National Park is located in the central Sierra Nevada of California. Three wilderness areas are adjacent to Yosemite: the Ansel Adams Wilderness to the southeast, the Hoover Wilderness to the northeast, and the Emigrant Wilderness to the north. The 1,189 sq mi (3,080 km 2) park is roughly the size of the U.S ...
Mount Lyell, the highest mountain of Yosemite Matterhorn Peak, not to be confused with The Matterhorn. Mammoth Peak and Kuna Crest, taken near Gaylor Lakes Mount Maclure, Yosemite's fifth-highest mountain. Many mountains in Yosemite National Park are higher than 12,000 feet (3,700 m); three are higher than 13,000 feet (4,000 m).
Sierra Nevada Batholith. Half Dome, Yosemite, a classic granite dome of the Sierra Nevada Batholith. The Sierra Nevada Batholith is a large batholith that is approximately 400 miles long and 60-80 miles wide which forms the core of the Sierra Nevada mountain range in California, exposed at the surface as granite. [1]
Mount Lyell (California) Mount Lyell is the highest point in Yosemite National Park, at 13,114 feet (3,997 m). It is located at the southeast end of the Cathedral Range, miles (2 kilometers) northwest of Rodgers Peak. The peak as well as nearby Lyell Canyon is named after Charles Lyell, a well-known 19th century geologist. [7]
Johnson Peak is the highest mountain, in Tuolumne Meadows, Yosemite National Park. [2] Johnson Peak is made of eroded granite. At 85 Ma, the Johnson Granite Porphyry is the youngest granite rock in the Yosemite National Park, though the entire peak formed beneath the Earth's crust. It broached the surface much later, via subduction.