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Geology Of The Northern Part Of The Fra Cristobal Range, Sierra And Socorro Counties, New Mexico, John T. Mccleary
Geology Of The Northern Part Of The Fra Cristobal Range, Sierra And Socorro Counties, New Mexico, John T. Mccleary
Earth and Planetary Sciences ETDs
The northern part of the Fra Cristobal Range contains rocks of Precambrian, Cambrian, Pennsylvanian, Permian, Cretaceous, Tertiary and Quaternary age. One of the northernmost exposures in New Mexico of the Cambrian Bliss formation occurs in the central part of the range. Here the bliss formation wedges out due to widespread pre-Pennsylvanian erosion which removed all the other lower Paleozoic rocks.
The Pennsylvanian Magdalena group, which is predominately limestone, rests uncomformably on Precambrian rock and the Bliss Formation. It forms the greatest part of the sedimentary sequence and is divided into three formations; the Red House, Nakaye, and Bar B formations …