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Specimen Ridge, el. 8,379 feet (2,554 m) is an approximately 8.5-mile (13.7 km) ridge along the south rim of the Lamar Valley in Yellowstone National Park.The ridge separates the Lamar Valley from Mirror Plateau.
This eruption of 2,450 km 3 (590 cu mi) of material is thought to be one of the largest known eruptions in the Yellowstone hotspot's history. This eruption, 2.1 million years ago, is the third most recent large caldera-forming eruption from the Yellowstone hotspot. It was followed by the Mesa Falls Tuff and the Lava Creek Tuff eruptions. [3]
Yellowstone National Park is a national park of the United States located in the northwest corner of Wyoming and extending into Montana and Idaho.It was established by the 42nd U.S. Congress through the Yellowstone National Park Protection Act and signed into law by President Ulysses S. Grant on March 1, 1872.
The Yellowstone Caldera, sometimes referred to as the Yellowstone Supervolcano, is a volcanic caldera and supervolcano in Yellowstone National Park in the Western United States. The caldera and most of the park are located in the northwest corner of the state of Wyoming. The caldera measures 43 by 28 miles (70 by 45 kilometers), and postcaldera ...
Yellowstone National Park is symbolic of the American West to many. ... and ejected grapefruit-sized rocks tens to hundreds of feet from the source. ... travertine terraces found in the park’s ...
It is the source of the Huckleberry Ridge Tuff that is found from southern California to the Mississippi River near St. Louis. This supereruption occurred 2.1 million years BP and produced 2500 km 3 (700 mi³) of ash. The Island Park Caldera is sometimes referred to as the First Phase Yellowstone Caldera or the Huckleberry Ridge Caldera.
Mountain Ranges of Yellowstone. Yellowstone National Park, located primarily in the U.S. state of Wyoming, though the park also extends into Montana and Idaho and its Mountains and Mountain Ranges are part of the Rocky Mountains. There are at least 70 named mountain peaks over 8,000 feet (2,400 m) in Yellowstone in four mountain ranges. Two of ...
The zircon and phenocrysts rims recorded that the magma of the Lava Creek Tuff was generated from a mix of mantle, Archean crust, and shallow hydrothermally altered intra-caldera rocks. Member A and B were sourced from separate magma reservoirs prior to eruption, [ 19 ] at a depth range of 3–6 km (1.9–3.7 mi) [ 20 ] and a temperature of 790 ...