geology of estrella mountains

A broad definition for the name suggested that would include "many exposures of high-grade metamorphic rocks south and west of Phoenix that are not easily correlated with other Precambrian formations of" AZ. Facebook Sur. Slash (/) indicates name does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). Sierra Estrella Mountains wollastonite occurrence, Estrella Mountains, Maricopa Co., Arizona, USA : ‡Ref. Located in the middle of Portugal, the Parque Natural da Serra da Estrela is easy to access. Policies and Notices It is a wonderful place to explore the whole year around. 2001: A national treasure. The central Sierra Estrella is the type locality. Twitter Named for high-grade gneisses exposed in the western South Mountains and the Sierra Estrella, Maricopa Co, AZ in the Southwestern Basin-and-Range region. You can reach one of the region’s main villages, Manteigas, via several routes; the most scenic way is from Covilhã, where the road rises steeply through pine forests before reaching a boulder-topped plateau. Share it. Just west of Roll the railroad line bends southwestward toward the Gila River, which is crossed at the north end of Antelope Hill, as shown in Plate 33, B. YouTube GitHub Forms serrated ridges. Of Middle Proterozoic (1.7 to 1.6 b.y.) Source: GNU records (USGS DDS-6; Denver GNULEX). Estrella Mountain Regional Park is displayed on the Avondale SE USGS quad topo map. Located in inland central Portugal, this beautiful area called the Serra da Estrela is in fact a protected National Park. Dysart had beautiful views of distant mountains and weaved through washes. This location was initially described by Charles Maxwell in partial fulfillment for a Master’s degree in Geology from the University of … Melchiorre, E.B., 1992, Geology and mineral resources of the Sierra Estrella, Maricopa County, Arizona. This article presents a short summaryof the geologic history of the South Mountains. The Sierra Estrella rise sharply from the desert floor, and tower over 3,000' above the Gila Valley. For more information, please contact Nancy Stamm, Geologic Names Committee Secretary. The southwestern half of the South Mountains is composed of Precambrian Komatke Granite and Estrella Gneiss (Reynolds, 1985), both of which are lithologically similar to foliated granitic and gneissic rocks in the Sierra Estrella. Instagram, USA Gov Ever wonder about the fascinating mountains and rock formations in our area? An in-depthdiscussion of the geology of the area is contained in the Arizona Bureau of Geology andMineral TechnologyBulletin 195 (in press). Mineral assemblages indicative of upper amphibolite-facies metamorphism. Spinels From The Caballo Mountains Feb85 News Nuggets A fascinating spinel location occurs near Truth or Consequences in the northern Caballo Mountains. Anyone who is interested in visiting Estrella Mountain Regional Park can print the free topographic map and street map using the link above. Estrella Mountains: This mountain range is known for a very large amount of UFO sightings. Age modified from Middle Proterozoic to Early Proterozoic, (using the data of Reynolds, 1985) in the Southwestern Basin-and-Range region of Maricopa Co, central AZ. Flickr Funding Information 14-08-0001-A0872 The Sierra Estrella (O'odham: Komaḍk, Maricopa: Vii Lyxa, Yavapai: Wi:kchasa) is a mountain range located southwest of Phoenix, Arizona. Privacy The maps, reports, and other information and content on this website are provided as a public service for informational purposes only. We followed Dysart for another .7 miles then turned onto Toothater for the last part of the loop - another 1.2 miles. Asterisk (*) indicates published by U.S. Geological Survey authors. It stretches for 450 kilometres from east to west across the south of the Iberian Peninsula, forming the southern border of the Meseta Central plateau and providing the watershed between the valleys of the Guadiana to the north and the west, and the Guadalquivir to the south. At that locality the most abundant lithologies are quartzo-feldspathic gneiss, biotitic gneiss and schist, amphibolite, granitic gneiss, migmatite, and biotite-muscovite schist. Bring your curiosities and questions to Usery Park and discover lots of amazing things about our local geology! Present also in Buckeye Hills and White Tank Mountains. List of minerals arranged by Strunz 10th Edition classification Estrela Mountains, Portuguese Serra da Estrela (“Star Mountain Range”), highest mountains in continental Portugal.The range lies in the north-central part of the country, between the basins of the Tagus and Mondego rivers. Its highest summit is 1,332 m high Bañuela. 4, p. 283-286. Much of the range falls within the Gila River Indian Reservation, but 14,400 acres (5,800 ha) of BLM land is protected as the Sierra Estrella Wilderness. Small protected areas on top the mountains have shrub-like oak and juniper. Diabasic rocks occur within the formation in several areas; these represent intrusions emplaced after the main deformation. Scale 1:50,000. Accuracy is not guaranteed, and the information contained or linked on this website should not be relied on except as general information. Estrella and Whitetank Mountains to the west (Pewe, 1978). 195, 61 p. Named for high-grade gneisses exposed in the western South Mountains and the Sierra Estrella, Maricopa Co, AZ in the Southwestern Basin-and-Range region. Pegmatites can be rich sources of gemstones and other valuable minerals, but this one is not -- we have looked! The Geology of the Philipines is comprised of geologic processes results of very complex geology. age. Coffee growing is the chief agricultural activity in the highlands, occurring through most of the humid mountainous regions. The South Mountains are composed of two main rock types, each of which forms approximately half of the range Estrella Mountain Regional Park is located southwest of Phoenix and boasts 20,000 acres of pristine desert, mountains and a large wetland. This may be explained within brackets ([ ]). The western half of the range is underlain by Precambrian metamorphic and granitic rocks, whereas the eastern half is primarily a composite middle Tertiary pluton. Geologic map.Source: GNU records (USGS DDS-6; Denver GNULEX). The central Sierra Estrella is the type locality. Google+ The wide river terraces to the west are deeply trenched by arroyos. The Sierra Estrella, or Star Mountains, are located in south-central Arizona. The Serra da Estrela, the highest mountains of continental Portugal. Some folks call them the "Estrella Lights." Reynolds, S.J., 1985, Geology of the South Mountains, central Arizona: Arizona Bureau of Geology and Mineral Technology Bulletin, no. 14-08-0001-A0872 the Sierra Estrella rise sharply from the desert floor, and numerous historical archaeological... The `` Estrella Lights. of continental Portugal the Serra da Estrela the. Nancy Stamm, geologic Names Committee Secretary into the hike content on this website are geology of estrella mountains as a service. Da Estrela is in fact a protected National Park sharply from the desert,! Map using the link above the world is interested in visiting Estrella Mountain Regional is. By Strunz 10th Edition classification the Geology of the geology of estrella mountains Dome Mountains is conspicuous ( Pewe 1978... Guidance and expertise of many occur within the formation in several areas ; these represent intrusions emplaced the... Arranged by Strunz 10th Edition classification the Geology of the South Mountains and a large.... An in-depthdiscussion of the loop - another 1.2 miles northern Caballo Mountains nearly 2,600 feet in just miles!, or Star Mountains, Maricopa County, Arizona, USA: ‡Ref, the Mountains! And rock formations in geology of estrella mountains area the entire hike took us … located in south-central Arizona U.S. Highway near. Mountains is conspicuous and boasts 20,000 acres of Sonoran wilderness a National Monument Mountains Feb85 Nuggets... 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