Search results
Results from the WOW.Com Content Network
Map of Long Valley Caldera Early winter in Long Valley, 2017. Long Valley Caldera is a depression in eastern California that is adjacent to Mammoth Mountain.The valley is one of the Earth's largest calderas, measuring about 20 mi (32 km) long (east-west), 11 mi (18 km) wide (north-south), and up to 3,000 ft (910 m) deep.
The Bishop Tuff is a welded tuff which formed 764,800 ± 600 years ago as a rhyolitic pyroclastic flow during the approximately six-day eruption that formed the Long Valley Caldera. [1] [2] [3] Large outcrops of the tuff are located in Inyo and Mono Counties, California, United States. Approximately 200 cubic kilometers of ash and tuff erupted ...
Mammoth Mountain is a lava dome complex in Mono County, California.It lies in the southwestern corner of the Long Valley Caldera [6] and consists of about 12 rhyodacite and dacite overlapping domes. [7]
The Long Valley Caldera was formed by a super-eruption about 760,000 years ago that blasted 140 cubic miles of magma, covering much of east-central California in hot ash that was blown as far away ...
In 2012, the Long Valley Observatory was integrated into the new California Volcano Observatory based in Menlo Park, California which covers the entire states of California and Nevada, this includes the southern Cascade Range volcanoes in the state of California which were previously under the jurisdiction of the Cascades Volcano Observatory. [3]
A long-quiet yet massive super volcano, dubbed the "Long Valley Caldera," has the potential to unleash a fiery hell across the planet, and the magma-filled mountain has a history of doing so.
USGS map of the Mono Basin area, showing the Long Valley Caldera (click to see detail). In hydrothermal systems, the circulation of ground water is driven by a combination of topography and geothermal heat sources. The system in the Long Valley Caldera is recharged primarily from snowmelt in the highlands around the western and southern rims of ...
[8]: 289 This magma chamber is separate from the magma chamber under Long Valley Caldera. [21] The recent eruptions of the Mono Craters have been similar in volume and nearly identical in composition ("crystal-poor high-silica rhyolite") to those of Glass Mountain that preceded the Long Valley Caldera-forming eruption. [10]