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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.
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.
Named by. W.T. Lee. Year defined. 1909. San Andres Formation, United States (New Mexico) San Andres Formation caps Sierra de la Cruz northeast of Socorro, New Mexico, USA. The San Andres Formation is a geologic formation found in New Mexico and Texas. It contains fossils characteristic of the late Leonardian (Kungurian) Age) of the Permian Period.
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 ...
Shiprock (Navajo: Tsé Bitʼaʼí, "rock with wings" or "winged rock" [4]) is a monadnock rising nearly 1,583 feet (482 m) above the high-desert plain of the Navajo Nation in San Juan County, New Mexico, United States. Its peak elevation is 7,177 feet (2,188 m) above sea level. It is 10.75 miles (17.30 km) southwest of the town of Shiprock ...
The Ocate volcanic field (also known as the Mora volcanic field) is a monogenetic volcanic field that extends from the southern Cimarron Range of the Sangre de Cristo Mountains to the vicinity of Wagon Mound, New Mexico. [2] The town of Wagon Mound is named after The Wagon Mound, a prominent landmark that is a highly eroded volcanic neck of the ...
The unit was first defined by J.D. Sears in 1925 as the Gallup Sandstone Member of the Mesaverde Formation and named after Gallup, New Mexico, which is built partially on its uppermost bed. Sears originally defined the Gallup Sandstone as the three sandstone beds, separated by shale and coal beds, forming cliffs and hogbacks in the Gallup area ...
High- silica eruptions of the Tewa Group began about 1.85 million years ago (Ma) and continued almost to the present day. [5] The Tewa Group is a sequence of mostly rhyolite pyroclastic flows and domes that underlies much of the Valles Caldera and forms extensive outflow sheets surrounding the caldera. It has a maximum thickness of 1,050 m ...