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Marysvale volcanic field

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Location  Utah, United States
Mountain type  Volcanic field
Age of rock  Middle Cenozoic
Marysvale volcanic field httpsuploadwikimediaorgwikipediacommonsthu

The Marysvale volcanic field is located in southwestern Utah, United States.

Map of Marysvale volcanic field, Utah 84766, USA

One of the largest volcanic fields in the western United States, the Marysvale straddles the Colorado Plateau-Great Basin transition zone. Most igneous rocks belong to a middle Cenozoic (~32 to 22 million years old) calc-alkaline sequence, although about 5% are related to an upper Cenozoic (23 million years to Holocene) bimodal (basalt and rhyolite) sequence. The Marysvale contains a variety of volcanic features, including stratovolcanoes, calderas, lava domes, and cinder cones.

The field is an example of intraplate volcanism; its earlier deposits are thought to be related to Farallon plate subduction, while the later bimodal assemblage (especially the basalts) have been linked to Basin and Range extension.


Marysvale volcanic field Wikipedia

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