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Tromen volcano, Chos Malal, Chos Malal department, Neuquén, Argentina

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Latitude & Longitude (WGS84): 37° 14' South , 70° 3' West
Latitude & Longitude (decimal): -37.2333333333, -70.05


Mesozoic evaporitic sediments, uncomformably overlain by Holocene eruptive deposits of Tromen volcano.
Holocene stratovolcano, unconformably overlying Mesozoic sedimentary rocks. Altitude 3,978 metres. Last eruption 1822?

Sometimes wrongly thought to be the source for the abundant high-quality "herkimer" -type quartz crystals commercially produced in Argentina, but these are from Mesozoic sediments exposed elsewhere in the Neuquen basin.

Mineral List


6 valid minerals.

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