Mississippian Tidal Deposits, North-Central New Mexico
The Mississippian Arroyo Penasco Group (Armstrong and Mamet, 1974; Armstrong, 1955, 1958, 1967) of north-central New Mexico contains the Espiritu Santo and Tererro Formations of Baltz and Read (1960). The Arroyo Penasco Group is 3 to 42 meters thick, rests on a peneplain of Precambrian rock, and is unconformably overlain by strata of Pennsylvanian age. Mississippian rocks crop out in the San Pedro, Nacimiento, Jemez, Sandia, Manzanita, Manzano, and Sangre de Cristo Mountains of north-central New Mexico (Figs. 37-1 and 37-2).
KeywordsSandstone Calcite Shale Dolomite Gypsum
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