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The geologic history of the state began with its assembly during the Yavapai and Mazatzal orogenies 1750 to 1650 million years ago (Mya). This was followed by 200 million years of tectonic quiescence that ended in the Picuris orogeny. This event transformed the New Mexico crust into mature continental crust.
Valles Caldera National Preserve. Valles Caldera (or Jemez Caldera) is a 13.7-mile (22.0 km) wide volcanic caldera in the Jemez Mountains of northern New Mexico. [1] Hot springs, streams, fumaroles, natural gas seeps and volcanic domes dot the caldera floor landscape. [4]
From the White Place, painting by Georgia O'Keefe depicting the Abiquiu Formation. The Abiquiu Formation is a geologic formation found in northern New Mexico. Radiometric dating constrains its age to between 18 million and 27 million years, corresponding to the late Oligocene to Miocene epochs.
The Manzano Group is a group of geologic formations in central New Mexico. These have radiometric ages of 1601 to 1662 million years , corresponding to the late Statherian period of the Paleoproterozoic. The name Manzano Group was previously applied to a group of sedimentary formations of Permian age in roughly the same geographical area.
Santa Fe, New Mexico. Named by. Hayden. Year defined. 1869. The Santa Fe Group is a group of geologic formations in New Mexico and Colorado. It contains fossils characteristic of the Oligocene through Pleistocene epochs. The group consists of basin -filling sedimentary and volcanic rocks of the Rio Grande rift, and contains important regional ...
"Geology of the Capitan coal field, Lincoln County, New Mexico" (PDF). New Mexico Bureau of Mines and Mineral Resources Circular. 35; Cather, Steven M. (1991). "Stratigraphy and provenance of upper Cretaceous and Paleogene strata of the western Sierra Blanca Basin, New Mexico" (PDF). New Mexico Geological Society Field Conference Series. 42: ...
Description. The Galisteo Formation is primarily fluvial sandstone and mudstone, with small amounts of conglomerate, freshwater limestone, and sedimentary tuff. It crops out over a limited area between Sandia Crest and the southern Sangre de Cristo Mountains, with an outlier at the eastern feet of the San Miguel subrange of the Jemez Mountains.
The Abo Formation consists of fluvial redbed mudstones and sandstones, including river channel deposits in its lower beds (Scholle Member) and distinctive sandstone sheets in its upper beds (Cañon de Espinoso Member.) Its depositional environment was typical of the "wet red beds" of tropical Pangaea. [ 2]
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