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Map of Mesozoic exposures in New Mexico, USA. The Mesozoic began with the Permian-Triassic extinction event. [31] The Sevier and Nevadan orogenies pushed up mountains to the west of New Mexico that produced a rain shadow, giving New Mexico an exquisitely hot and dry climate through much of the early Mesozoic. [32] [33]
The McRae Group is a geological group exposed in southern New Mexico whose strata, including layers of the Hall Lake Formation and Jose Creek Formation, date to the Late Cretaceous. [1] Dinosaur remains are among the fossils that have been recovered from this unit.
Access to the range is primarily via New Mexico State Road 152 (NM 152), which crosses the Black Range on its way from Kingston on the east towards San Lorenzo on the west. NM 152 crosses the range at 8,228-foot (2,508 m) Emory Pass, where there is a hiking trail that covers the entire length of the mountains along the central ridge.
Ah-Shi-Sle-Pah Wilderness is located in San Juan County, New Mexico, between Chaco Canyon and the De-Na-Zin Wilderness.Its name is a phonetic transliteration of Navajo "áshįįh łibá" meaning "salt, it is grey (grey salt)".
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. [1] [2] [3] The name Manzano Group was previously applied to a group of sedimentary formations of Permian age in roughly the same geographical ...
Since 1992 the New Mexico Bureau of Geology and Mineral Resources has been undertaking extensive investigations of the geology of the basin and the aquifer. [4] The groundwater has been deposited in three main phases. The lower Santa Fe group was created by dune fields and small streams draining into playa lakes and mud flats.
The Jemez Lineament is a chain of late Cenozoic volcanic fields, 800 kilometers (500 mi) long, reaching from the Springerville and White Mountains volcanic fields in East-Central Arizona to the Raton-Clayton volcanic field in Northeastern New Mexico.
The Bandelier Tuff is a geologic formation exposed in and around the Jemez Mountains of northern New Mexico.It has a radiometric age of 1.85 to 1.25 million years, corresponding to the Pleistocene epoch.