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(Look a like) of Inside of Flood basalt volcano

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(Look a like) of Inside of Flood basalt volcano

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Each individual lava flow is similar to the other individual lava flows. There is a Colonnade (base), an entablature (middle), and a "vesicular scoracious top". A colonnade is caused by a pond of lava cooling slowly. We aren't quite sure what causes entablature, however.

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Volcanism started 17.5 million years ago an ceased 6 million years ago

Extinct because it hasn't erupted for 6 million years and there is no recorded data of it erupting

It creates a kind of gorge

A flood basalt is a volcano that when it erupts it creates a gorge

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Where the Columbia River Flood Basalt is Located

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Where the Columbia River Flood Basalt is Located

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(inside of volcano)

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This is a picture of the Columbia River Flood Basalt.

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Altmetric: 12

Citations: 5

More detail

News & Views

The origin of volcanic activity occurring far from tectonic-plate boundaries has been a subject of contention. The latest geodynamic model offers a fresh take on the matter. See Letter p.386

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A flood basalt is the product of a volcanic eruption that covers large areas with basalt lava. The origin of the SteensColumbia River flood basalts, thought to be associated with the onset of volcanism within the Yellowstone hotspot, has remained controversial.