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Tertiary-Cretaceous andesitic to dacitic lavas and pyroclastic breccias

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Includes many remnants of eruptive centers in Grant and Hidalgo Counties and Upper Creatceous andesitic lavas in Sierra County.
State New Mexico
Name Tertiary-Cretaceous andesitic to dacitic lavas and pyroclastic breccias
Geologic age Paleocene and upper Cretaceous
Lithologic constituents
Major
Igneous > Volcanic > Felsic-volcanic > Dacite (Flow, Volcaniclastic-volcanic breccia)andesitic to dacitic lavas and pyroclastic breccias
Igneous > Volcanic > Mafic-volcanic > Andesite (Flow, Volcaniclastic-volcanic breccia)andesitic to dacitic lavas and pyroclastic breccias
References

Green, G.N., Jones, G.E., and Anderson, O.J., 1997, The Digital Geologic Map of New Mexico in ARC/INFO Format: U.S. Geological Survey Open-File Report 97-0052, 9 p., scale 1:500,000.

https://pubs.er.usgs.gov/publication/ofr9752
NGMDB product
Counties Grant - Hidalgo - Sierra