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Sandia Formation

Sandia Formation; predominately clastic unit (commonly arkosic) with minor black shales, and limestone in lower part; locally includes Osha Canyon Formation in Nacimiento Mountains
State New Mexico
Name Sandia Formation
Geologic age Phanerozoic | Paleozoic | Carboniferous Pennsylvanian
Primary rock type sandstone
Secondary rock type shale
Other rock types limestone; conglomerate
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone (Bed)predominantly clastic (commonly arkosic) with minor black shales, and limestone.
Minor
Sedimentary > Clastic > Mudstone > Shale (Bed)predominantly clastic (commonly arkosic) with minor black shales, and limestone.
Sedimentary > Carbonate > Limestone (Bed)predominantly clastic (commonly arkosic) with minor black shales, and limestone.
Incidental
Sedimentary > Clastic > Conglomerate (Bed)predominantly clastic (commonly arkosic) with minor black shales, and limestone.
Map references
Anderson, O.J., Jones.G.E., and Green, G.N., compilers, 1997, Geologic map of New Mexico: U.S. Geological Survey Open-File Report 97-52.
Unit references
Anderson, O.J., Jones.G.E., and Green, G.N., compilers, 1997, Geologic map of New Mexico: U.S. Geological Survey Open-File Report 97-52.
Counties Bernalillo - Rio Arriba - Sandoval - San Miguel - Santa Fe - Socorro - Taos - Torrance - Valencia