EL MALPAIS

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GEOLOGY

NEW MEXICO U.S.A

The

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One of the two Double Sinks 

LAVA TUBES

1

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COLLAPSE

1

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REFEreNCES

USGS: Volcano Hazards Program

Valles Caldera - New Mexico

Yellowstone Observatory

https://volcanoes.usgs.gov/volcanoes/valles_caldera/ 

Outline of the geology of the Jemez Mountains, New Mexico

New Mexico Geological Survey

Albuquerque Country, Northrop, S. A.; [ed.], New Mexico Geological Society 12th Annual Fall Field Conference Guidebook, 199 p.

R.A. Bailey, R.L. Smith & C.S, Ross, 1961, pp 139-143 

https://nmgs.nmt.edu/publications/guidebooks/downloads/12/12_p0139_p0143.pdf