.gif)
Glass Mountain (California)
Encyclopedia
Glass Mountain, on the Inyo National Forest
, is one of the tallest peaks in Mono County, California
. It consists of a sequence of lava domes, flows, and welded pyroclastic flows of rhyolite composition that were erupted between 2.1 and 0.8 million years ago.
Obsidian
, a naturally occurring volcanic glass, can be found on the mountain.
Inyo National Forest
Inyo National Forest is a federally administered forest in the United States. The forest covers parts of the eastern Sierra Nevada of California, and the White Mountains of California and Nevada. It contains two wilderness areas: the John Muir Wilderness and the Ansel Adams Wilderness...
, is one of the tallest peaks in Mono County, California
Mono County, California
Mono County is a county located in the east central portion of the U.S. state of California, to the east of the Sierra Nevada between Yosemite National Park and Nevada. As of the 2010 census, the population was 14,202, up from 12,853 at the 2000 census...
. It consists of a sequence of lava domes, flows, and welded pyroclastic flows of rhyolite composition that were erupted between 2.1 and 0.8 million years ago.
Obsidian
Obsidian
Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock.It is produced when felsic lava extruded from a volcano cools rapidly with minimum crystal growth...
, a naturally occurring volcanic glass, can be found on the mountain.
External links