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Santa Maria del Oro volcano

Maar 1120 m / 3675 ft
Mexico, 21.37°N / -104.57°W
Current status: (probably) extinct (0 out of 5) | Reports
Santa Maria del Oro volcano books
Typical eruption style: unspecified
Santa Maria del Oro volcano eruptions: None during the past 10,000 years
Less than few million years ago (Pleistocene) No recent earthquakes
TimeMag. / DepthDistanceLocation

Background:

The scenic lake-filled Santa María del Oro maar lies between Sangangüey and Ceboruco volcanoes in the Tepic-Chapala graben. The topographically indistinct outer flanks of the maar give little hint to the dramatic 400 m drop into the Laguna Santa María crater lake. The roughly 3-km-wide maar was erupted through older Miocene rhyolitic ashflow tuffs of the Sierra Madre Occidental. Little is known of the geology or age of Santa María del Oro, but it occurs near the alignment of cinder cones extending from Sangangüey and may have a similar Pleistocene age. Pyroclastic-surge deposits from Santa María del Oro occur in valleys to the north and in some cases along the walls of the crater.
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Source: Smithsonian / GVP volcano information


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