Post-Caldera
Post-Caldera
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Geologic history of the Long Valley, Mono Basin region
Geologic history of the Long Valley, Mono Basin region.
Features of the Long Valley Caldera
The broad depression of Long Valley Caldera that we see today is much shallower and a little larger in diameter than it was immediately after its formation about 760,000 years ago.
Resurgent Dome in the Long Valley Caldera, California
The resurgent dome is a broad area of the central caldera floor that was pushed upward within 100,000 years or less of the caldera-forming eruption 760,000 years ago.
Post-caldera flows and domes, Long Valley Caldera, California
Since the enormous explosive eruption formed the caldera about 760,000 years ago, hundreds of smaller eruptions have partially filled the initially deep depression.