Geology√

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Geology√

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Geology√

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Geology√

1974 Archival description results for Geology√

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Possible sequence of events for the origin of a caldera

Caldera. Sequence of events proposed by one theory of the origin of a caldera. Top: An eruption begins, with fiery clouds and other dust clouds distributing sme material on slopes and surrounding country. Middle: Eruption ccontinues, with part of the cone blown away, and lava flows joining in draining the magma reservoir. Bottom: Most of the cone collapses into reservoirs; some final activity forms cinder cone in caldera. Leet and Judson, 1958, p. 67.

Results 541 to 555 of 1974