Note Text and 1 plate. Policies and Notices 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. TOPOGRAPHY, GEOLOGY, AND SOILS ... detailed study of geology at the South Mountains, and Demsey (1989), Reynolds and Skotnicki (1993), and ... South of Estrella Drive, generally in the Eastern Section of the Study Area, there is relatively little groundwater use. Join geology professor, A. J. Lombard, as he shares a wealth of information about the geology of the East Valley on this 1-mile interactive walk. Spinels From The Caballo Mountains Feb85 News Nuggets A fascinating spinel location occurs near Truth or Consequences in the northern Caballo Mountains. Located in inland central Portugal, this beautiful area called the Serra da Estrela is in fact a protected National Park. An in-depthdiscussion of the geology of the area is contained in the Arizona Bureau of Geology andMineral TechnologyBulletin 195 (in press). Sierra Estrella Mountains wollastonite occurrence, Estrella Mountains, Maricopa Co., Arizona, USA : ‡Ref. De verão ou de inverno, a montanha mais alta de Portugal continental é o cenário perfeito para uns dias descontraídos em contacto com a natureza.Com uma altitude máxima de 1993 metros na Torre, a Serra da Estrela é uma zona de rara beleza paisagística com desníveis montanhosos impressionantes onde podemos viver intensamente o silêncio das alturas. The entire hike took us … Coffee growing is the chief agricultural activity in the highlands, occurring through most of the humid mountainous regions. GitHub Privacy Page Contact Information: Personnel Page Last Modified: Thu 06 Aug 2020 08:02:43 PM MDT, National Cooperative Geologic Mapping Program. Source: GNU records (USGS DDS-6; Denver GNULEX). Asterisk (*) indicates published by U.S. Geological Survey authors. Scale 1:50,000. This may be explained within brackets ([ ]). The area is home to diverse and endangered species, forests of cactus, and numerous historical and archaeological sites. As the Phoenix Basin dropped, it simultaneously filled with alluvial debris shed from adjacent mountains. The extreme elevation change results in a traditional desert terrain at the base with saguaro, cholla, paloverde, and ocotillo, while higher elevations feature shrub live oak and junipers. Estrella Mountain Regional Park is displayed on the Avondale SE USGS quad topo map. Facebook Accuracy is not guaranteed, and the information contained or linked on this website should not be relied on except as general information. It is a wonderful place to explore the whole year around. The central Sierra Estrella is the type locality. Geologic map.Source: GNU records (USGS DDS-6; Denver GNULEX). The Sierra Estrella, or Star Mountains, are located in south-central Arizona. For more information, please contact Nancy Stamm, Geologic Names Committee Secretary. Intruded by Komatke Granite (new), South Mountains Granodiorite (new), Telegraph Pass Granite (new), and Dobbins Alaskite (new). Estrella Mountain Regional Park is located southwest of Phoenix and boasts 20,000 acres of pristine desert, mountains and a large wetland. Mountains. 4, p. 283-286. 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. We then turned onto Dysart around 2.75 miles into the hike. Google+ Accessibility They are also located strategically between Barry Goldwater Range and Luke Air Force Base, so you draw your own conclusions, but admittedly this mountain range has a very odd feel to it. 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. The wide river terraces to the west are deeply trenched by arroyos. Instagram, USA Gov : Peirce, H.W. Forms serrated ridges. The Serra da Estrela. The Geology of the Philipines is comprised of geologic processes results of very complex geology. South of U.S. Highway 60 near Dromedary Peak Located in the middle of Portugal, the Parque Natural da Serra da Estrela is easy to access. To the west are the prominent Muggins Mountains, and to the north the west side of the Castle Dome Mountains is conspicuous. Sur. rocks that make up this entire group of mountains. "No current usage" (†) implies that a name has been abandoned or has fallen into disuse. This rugged desert range forms the impressive southwestern skyline of the Phoenix metro area. The gneiss in the South Mountains was thought by … The Philippines may be viewed as a collage of metamorphic terranes, magmatic arcs, ophiolitic complexes, sedimentary basins, and a continental block of Eurasian affinity subjected to tectonic processes. 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! The basin began to form 8-15 Ma as the previous period of explosive Tertiary volcanism waned (Shafiquallah and others, 1980). Diabasic rocks occur within the formation in several areas; these represent intrusions emplaced after the main deformation. (1990), AZ Geol. Slash (/) indicates name does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). Lee "Geology of Utah's Mountains, Peaks, and Plateaus Including descriptions of cliffs, valleys, and climate history" por William T. Parry disponible en Rakuten Kobo. 2001: A national treasure. 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. 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. 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. The Sierra Estrella rise sharply from the desert floor, and tower over 3,000' above the Gila Valley. Users are responsible for verification of all facts and information to their own satisfaction. Most of formation probably derived from intermediate to mafic plutonic or volcanic protoliths. 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. A herd of desert bighorn sheep roam the mountains and Gila monster, desert tortoise, mountain lion, mule deer, coyote, javelina, giant spotted whiptail lizard, golden eagle, prairie falcon and cooper’s hawk” all inhabit the slopes. Estrella Mountains (Ariz.) Kamatuck (Ariz.) Komatke (Ariz. : Mountains) Maricopa Mountains (Maricopa County and Pinal County, Ariz.) ... Proterozoic geology of the Sierra Estrella, Arizona, 1993: p. iii (Sierra Estrella of central Arizona is a rugged mountain range) The Sierra Estrella Mountains feature rocky canyons and steep peaks, rising nearly 2,600 feet in just two miles. North of Estrella … Its highest summit is 1,332 m high Bañuela. Melchiorre, E.B., 1992, Geology and mineral resources of the Sierra Estrella, Maricopa County, Arizona. Some folks call them the "Estrella Lights." Estrella Mountains: This mountain range is known for a very large amount of UFO sightings. 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. Reynolds, S.J., 1985, Geology of the South Mountains, central Arizona: Arizona Bureau of Geology and Mineral Technology Bulletin, no. The central Sierra Estrella is the type locality. | Metadata UUID: 252032ad-937b-11df-ae28-4a34282d677f, Arizona Geological Survey Open File Reports, Geology of the Sierra Estrella, Arizona - Report, Geologic map of the Phoenix Mountains, Central Arizona, Geologic Map of Petrified Forest National Park, Arizona, Suggested Guidelines for Investigating Land Subsidence and Earth Fissure Hazards in Arizona. This master plan update was a collaborative process that involved the guidance and expertise of many. U.S. Department of the Interior | U.S. Geological Survey Supported by the National Cooperative Geologic Mapping Program 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. document archiving, management and discovery. Twitter This article presents a short summaryof the geologic history of the South Mountains. 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. Funding Information 14-08-0001-A0872 ID #10064574. Of Middle Proterozoic (1.7 to 1.6 b.y.) The Sierra Estrella (O'odham: Komaḍk, Maricopa: Vii Lyxa, Yavapai: Wi:kchasa) is a mountain range located southwest of Phoenix, Arizona. This location was initially described by Charles Maxwell in partial fulfillment for a Master’s degree in Geology from the University of … The Serra da Estrela, the highest mountains of continental Portugal. In general, the mountains are forested and sparsely populated, but in some places (notably in Haiti) the great population pressure has brought about the deforestation of land for cultivation. Estrella are an unnamed peak at 1375 m in the north-central part of the range and Montezuma Peak at 1323 m. This study covers approximately 165 km2 of the Sierra Estrella. Present also in Buckeye Hills and White Tank Mountains. Anyone who is interested in visiting Estrella Mountain Regional Park can print the free topographic map and street map using the link above. The South Mountains of central Arizona are a typical, but geologically simple, metamorphic core complex. Ever wonder about the fascinating mountains and rock formations in our area? Mineral assemblages indicative of upper amphibolite-facies metamorphism. 1 TECTONICS 1.1 REGIONAL GEODYNAMIC SETTINGS 1.1.1 WESTERN PACIFIC DOMAIN 1.1.1.1 … The maps, reports, and other information and content on this website are provided as a public service for informational purposes only. Estrella and Whitetank Mountains to the west (Pewe, 1978). The Sonoran Desert and views of the Sierra Estrella Mountains make for an uplifting experience. Among other places, rocks which form the remains of the old land mass are to be seen at Squaw Peak, Black Mountain, the McDowell Mountains, the Sierra Estrella, and the majority of the rock forming Camelback Mountain. age. FOIA Former usage and, if known, replacement name given in parentheses ( ). Locality: Sierra Estrella Quartz Veins, Montezumas Head area, Sierra Estrella Mountains, Gila River Indian Reservation, Pinal Co., Arizona, USA Reference: MRDS database Dep. This quartz formation is called a pegmatite, and it provides stark contrast to the darker . Pegmatites can be rich sources of gemstones and other valuable minerals, but this one is not -- we have looked! Reynolds, S.J., Shafiqullah, Muhammad, Damon, P.E., and DeWitt, Ed, 1986, Early Miocene mylonitization and detachment faulting, South Mountains, central Arizona: Geological Society of America, Geology, v. 14, no. We followed Dysart for another .7 miles then turned onto Toothater for the last part of the loop - another 1.2 miles. The geology of the mountain ranges that surround Phoenix (White Tank Mountains, Sierra Estrella Mountains, McDowell Mountains) is generally similar to that of the ranges that we'll discuss here, but further to the north (Bradshaw Mountains) and east (Superstition Mountains) the story becomes different. President Clinton declared 496,000 pristine acres of Sonoran wilderness a National Monument. The University makes no warranties or representations of any kind, and specifically disclaims all warranties including the warranty of merchantability and fitness for a particular purpose. List of minerals arranged by Strunz 10th Edition classification 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. A reconnaissance study of the crest of the northwest-trending Sierra Estrella in central Arizona indicates that this range is composed primarily gneiss and schist with a steeply dipping, northwest-striking foliation similar to that in 1.6-1.7 b.y.-old metamorphic rocks elsewhere in Arizona. Flickr The South Mountains are composed of two main rock types, each of which forms approximately half of the range The Maricopa County Parks and Recreation Department would like to thank the Planning Team who YouTube Utah’s landscape is among the most spectacular in the world. Dysart had beautiful views of distant mountains and weaved through washes. Small protected areas on top the mountains have shrub-like oak and juniper. The world desert and views of the Geology of the Sierra Estrella, Maricopa Co, AZ in Southwestern! Dysart for another.7 miles then turned onto Dysart around 2.75 miles into the hike of Proterozoic. 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