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Interior of Amboy Crater showing a lava lake and the distant breach in the cinder cone rim. Interior of Amboy Crater from near breach showing lava lakes. Amboy Crater is a dormant cinder cone volcano that rises above a 70-square-kilometer (27 sq mi) lava field in the eastern Mojave Desert of southern California, within Mojave Trails National Monument.
Established in 1902, Crater Lake is the fifth-oldest national park in the United States and the only national park in Oregon. [3] The park encompasses the caldera of Crater Lake, a remnant of Mount Mazama, a destroyed volcano, and the surrounding hills and forests. The lake is 1,949 feet (594 m) deep at its deepest point, [4] which makes it the ...
Crater Lake (Klamath: Giiwas) [2] is a volcanic crater lake in south-central Oregon in the Western United States. It is the main feature of Crater Lake National Park and is famous for its deep blue color and water clarity. The lake partly fills a 2,148-foot-deep (655 m) caldera [3] that was formed around 7,700 (± 150) years ago [4] by the ...
Little is known about the history of the oldest exposed rocks in the area due to extensive metamorphism.This somber, gray, almost featureless crystalline complex is composed of originally sedimentary and igneous rocks with large quantities of quartz and feldspar mixed in. [1] The original rocks were transformed to contorted schist and gneiss, making their original parentage almost unrecognizable.
Lava Creek Tuff. The Lava Creek Tuff is a voluminous sheet of ash-flow tuff located in Wyoming, Montana and Idaho, United States. It was created during the Lava Creek eruption around 630,000 years ago, which led to the formation of the Yellowstone Caldera. This eruption is considered the climactic event of Yellowstone's third volcanic cycle.
June 8, 2023 at 11:22 AM. An eruption occurs at the summit of the Kilauea volcano in Hawaii. (U.S. Geological Survey via AP) (AP) Kilauea, a volcano on Hawaii's Big Island, erupted early Wednesday ...
Sound – A long, relatively wide body of water, connecting two larger bodies of water. Spit – Coastal bar or beach landform deposited by longshore drift. Strait – Naturally formed, narrow, typically navigable waterway that connects two larger bodies of water. Strandflat – Type of landform found in high-latitude areas.
A large igneous province (LIP) is an extremely large accumulation of igneous rocks, including intrusive (sills, dikes) and extrusive (lava flows, tephra deposits), arising when magma travels through the crust towards the surface. The formation of LIPs is variously attributed to mantle plumes or to processes associated with divergent plate ...