Mono Lake Volcanic Field

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CalVO geologist Mae Marcaida examines thin layers of volcanic ash s...

CalVO geologist Mae Marcaida examines thin layers of volcanic ash s...

CalVO geologist Mae Marcaida examines thin layers of volcanic ash sandwiched between thick beds of sediment deposited by ancestral Mono Lake in eastern California. Each ash layer is evidence of a past explosive eruption of the Mono Craters, which began erupting about 65,000 years ago just south of present-day Mono Lake. Marcaida and her colleagues use the chemistry of

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