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pinacate volcanic field

At its core lies the Sierra Pinacate, a central massif of old lava flows that is mantled with and surrounded by younger flows and cinder cones. Pinacate volcano is a young volcanic field of maars, tuff rings, more than 500 basaltic cinder cones in the Sonoran desert in NW Mexico, a nearly unpopulated region between Arizona and the Gulf of California. Pinacate is a “monogenetic volcanic field,” the most common kind of Quaternary volcanism on earth. The Pinacate volcanic field is a roughly 55 x 60 km area containing numerous maars, tuff rings, and cinder cones. Pinacate volcanism is monogenetic and has been intermittently-continuous since initiation in the early … The United States/Mexico border runs across the upper right corner of the image. The field comprises more than 300 small basaltic volcanoes - cinder cones and maars. This tube-fed pahoehoe flow contrasts sharply with other Pinacate lavas in its great volume, alkali-poor composition and morphologic features, which include novel small structures named "spatter tubes." In 1981, Dan Lynch completed his Ph.D. dissertation, "Genesis and Geochronology of Alkaline Volcanism in the Pinacate Volcanic Field, Northwestern Sonora, Mexico" at the University of Arizona. The Pleistocene-Holocene Pinacate volcanic field encroaches on the Gran Desierto of Sonora, Mexico. The Pinacate volcanic field is located in northwestern Sonora, Mexico, near the northern end of the Gulf of California. Maar-calderas created by steam activity are common enough to be considered major features of monogenetic volcanic fields; sixteen of those "Fifty Fields" have them. The Biosphere Reserve contains young volcanoes, basalt lava flows, and giant maar craters on the Pinacate Volcanic field. English: The Pinacate volcanic field is a roughly 55 x 60 km area containing numerous maars, tuff rings, and cinder cones in NW México near the head of the Gulf of California. The crest of the East Ridge subsided into a graben, and three valleys formed in the South Wall, each at the head of a short lava flow. The Pinacate volcanic field (PVF), located in the El Pinacate y Gran Desierto de Altar Biosphere Reserve of Sonora, Mexico, comprises a 1,500 km2 area of Pleistocene lava flows and contains nearly 400 cinder cones and eight maars. NASA sent astronauts here starting in 1965 for geologic training, given the similarity of the terrain to the lunar surface, and included training models of lunar surface equipment. It is dominated topographically by the Sierra Pinacate, a broad, composite volcanic pile in the southern half of the field with a maximum elevation of 1,206 m. Many of these volcanic rocks evidently are of late The Pinacate Peaks (Sierra Pinacate, O'odham: Cuk Doʼag) are a group of volcanic peaks and cinder cones located mostly in the Mexican state of Sonora along the international border adjacent to the U.S. state of Arizona, surrounded by the vast sand dune field of the Gran Desierto de Altar, at the desert's southeast.[1]. The United States/Mexico border runs across the upper right corner of the image. Image is centered at 31.84˚N, 113.47˚W. The Pinacate Desert is home to the largest sand dunes of the Americas. Pinacate has three giants that rival anything in Africa as well as a bunch of smaller ones. Space Radar Image of Pinacate Volcanic Field, Mexico This spaceborne radar image shows the Pinacate Volcanic Field in the state of Sonora, Mexico, about 150 kilometers (93 miles) southeast of Yuma, Arizona. [2], A variety of flora and fauna occur in the Pinacate Mountains, including the sculptural Elephant Tree, Bursera microphylla.[3]. These magmas were evolved from basalt by fractional crystallization and constitute the entire alkaline rock series from basalt to trachyte. Oct 14, 2013 - This Pin was discovered by Lynn Recker. Here we reconstruct one of the youngest eruptions in the Pinacate volcanic field (Sonora, Mexico)and estimate the volumes of the lava flows, scoria cone, and tephra units. The field today is part of El Pinacate and Gran Desierto de Altar Biosphere Reserve and is a UNESCO World Heritage Site. Apollo 14's Alan Shepard and Ed Mitchell, and Apollo 17's Jack Schmitt trained here in Feb. The pockmarked terrain of Pinacate National Park in Mexico's Sonora Province is evidence of a violent past. Among hundreds of volcanic vents and cinder cones are rare maar craters, formed when rising magma met underground water to create pockets of steam that blew nearly circular holes in the … The tallest of the peaks is Cerro del Pinacate (also called Volcan Santa Clara), elevation 3,904 feet (1,190 m). The Pinacate Peaks lie just north of the fishing resort of Puerto Peñasco. Pinacate Volcano Field (Public domain.) The source vent of the eruption is Tecolote volcano (27 ± 6 ka, 40 Ar/ 39 Ar). [5], El Pinacate y Gran Desierto de Altar Biosphere Reserve. NASA Information and Satellite Image: Pinacate Mountains, http://www.biology.ed.ac.uk/research/groups/jdeacon/desertecology/pinacate.htm, http://www.desertinvasion.us/areas/pinacate_res.html, Official Pinacate y Gran Desierto de Altar Biosphere Reserve website, Global Volcanism Program: Pinacate Mountains, https://en.wikipedia.org/w/index.php?title=Pinacate_Peaks&oldid=929892691, Articles containing O'odham-language text, Articles containing Spanish-language text, Creative Commons Attribution-ShareAlike License, This page was last edited on 8 December 2019, at 22:52. The source vent of the eruption is Tecolote volcano (27 ± 6 ka, 40Ar/39Ar). Padre Eusebio Kino, founder of many Spanish missions in the Sonoran Desert, explored here in 1698 and several times later. Pinacate Volcanic Field, Mexico. Monogenetic volcanic fields of Quaternary age like this one are scattered across all the tectonically active regions of the Earth; more than fifty lie within 1000 km of Pinacate. In addition, there are a number of maar volcanoes, the most prominent of which is the Elegante Crater. All of the Pinacate magmas came through at least some ground water under the field but only about a dozen out of 465 eruptions even noticed the water and interacted with it. Is unique in the Sonoran Desert, explored here in 1698 and several times later Tecolote volcano ( ±... The photo is that of Crater Elegante: a maar volcano in the center of the Gulf of California on! Craters on the Pinacate volcanic field and is a “ monogenetic volcanic field, ” the recent... 60 x 55 km and has been active less than 10,000 years ago Tephra. 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