Black Rock Desert volcanic field explained

The Black Rock Desert volcanic field in Millard County, Utah, is a cluster of several volcanic features of the Great Basin including Pahvant Butte, The Cinders, and Tabernacle Hill.^[1] The field's Ice Springs event was an explosive eruption followed by lava flows that were Utah's most recent volcanic activity (1140–1440 AD).^[2] which overlapped the older flows of Pavant Butte.^[1]

The Pleistocene-Holocene field has been an active tectonic area for approximately 2.7 million years. Within the past 1.5 million years, local volcanism has produced both rhyolitic and basaltic cones from near twenty-four vents from which lava escapes through geologic faults.^[3]

References

Sources

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Notes and References

1. Web site: Black Rock Desert: Summary. Smithsonian Institution. Global Volcanism Program. July 12, 2010.
2. Web site: Black Rock Desert: Eruptive History. Smithsonian Institution. Global Volcanism Program. July 12, 2010.
3. Web site: Pahvant Butte in the Black Rock Desert, Millard County, Utah. Case, William F.. 2010. Utah Geological Survey. May 7, 2010.