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Mascota Volcano - John Seach
Mexico
20.62 N, 104.83 W
summit elevation 2540 m
Shield volcanoes
Mascota volcanic field is located in the Jalisco Block of western Mexico, where the Rivera Plate subducts beneath the North American Plate. It covers an area of 2000 sq km and contains 87 small cones and lava flows.
The volcano contains the earth's youngest identified minettes, a type of igneous rock, composed of phenocrysts of biotite, and with or without phenocrysts of hornblende, augite and a high diopside content, and olivine.
The oldest eruptions (2.4 to 0.5 million years ago) are located in the south, and the most recent eruptions ( < 0.5 million years ago) are found in the north.
Mascota Volcano Eruptions
No recent eruptions.