Upper middle Tertiary rhyolitic pyroclastic rocks of the Mogollon Group, ash-flow tuffs

Regional ash-flow tuffs include the La Jencia, Vick's Peak, Lemitar, South Canyon, Bloodgood Canyon, Shelley Peak, Davis Canyon, Park, Rhyolite Canyon, Apache Springs, and Amalia Tuffs; the tuffs of Horseshoe Canyon, Diamond Creek, Garcia Camp, Caronita Canyon, Turkey Springs, and Little Mineral Creek; and the Jordan Canyon Formation. Includes some locally erupted lavas and tuffs within thick intra-caldera units; includes minor volcaniclastic sedimentary units between thin outflow sheets.
State New Mexico
Name Upper middle Tertiary rhyolitic pyroclastic rocks of the Mogollon Group, ash-flow tuffs
Geologic age Upper Oligocene (24-30 Ma)
Lithologic constituents
Major
Igneous > Volcanic > Felsic-volcanic > Rhyolite (Flow, Pyroclastic-ash flow, Pyroclastic-tuff)
Minor
Sedimentary > Clastic (Tuffaceous)Minor volcaniclastic sedimentary units between thin outflow sheets.
References
NGMDB product
Counties Catron - Colfax - Grant - Hidalgo - Luna - Rio Arriba - Sierra - Socorro - Taos