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Inyo Craters, USA

 Inyo Craters, USA, Volcano photo


Inyo Craters, USA

The Mono Craters volcanic field south of Mono Lake at the upper left, is a 17-km-long arcuate chain of rhyolitic lava domes and thick, viscous lava flows.

Mono Craters has been frequently active throughout the Holocene, along with the Inyo Craters chain to the south.

The Inyo Craters chain, which includes the Wilson Butte, Obsidian and Glass Creek domes, which are oriented diagonally along a N-S line from the left center to lower right of the photo.

The latest eruptions of Mono Craters and Inyo Craters occurred nearly simultaneously around 600 years ago.

The Inyo Craters are a 12-km-long chain of silicic lava domes, lava flows, and explosion craters along the eastern margin of Sierra Nevada south of Mono Craters near the town of Mammoth.

Inyo Craters overtop the NW rim of the Pleistocene Long Valley caldera and extend onto the caldera floor, but are chemically and magmatically part of a different volcanic system.

Postglacial explosion pits of Mammoth Mountain to the south are an extension of Inyo Craters (Bailey 1980).

The latest eruptions at Inyo Craters took place about 600 years ago, when explosive eruptions accompanied formation of the South Deadman, Obsidian Flow, and Glass Creek rhyolitic lava domes and lava flows.

The Inyo Crater Lakes are small phreatic craters that formed during this eruption on the south flank of the Pleistocene Deer Mountain rhyolite dome of the Long Valley caldera.

PHOTO SOURCE: Roy Bailey, 1980 (U.S. Geological Survey), courtesy of the Global Volcanism Program, Smithsonian National Museum of Natural History, used with permission.


NOTE: The information regarding Volcano on this page is re-published from other sources. No claims are made regarding the accuracy of Volcano information contained here. All suggestions for corrections of any errors about Volcano photos should be addressed to the copyright owner noted below the photo.





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