https://www.usgs.gov/volcanoes/mono-inyo-craters/science/geologic-history-inyo-craters-volcanic-chain
Geologic History of the Inyo Craters Volcanic Chain | U.S. Geological Survey
A long, narrow tabular body of molten rock beneath the ground called a "dike" fed eruptions that formed the Inyo lava flows and several explosion craters...
history of theinyo craters