In December 2014, Bob Metz was recognized for his 50-year membership with the Arizona Geological Society. The Tucson Mountains, on the west side of the basin, were once located some 30 km to the east above the batholitic rocks. STRUCTURAL GEOLOGY OF THE SANTA RITA MOUNTAINS, SOUTHEAST OF TUCSON, ARIZONA By HARALD DREWES ABSTRACT The Santa Rita Mountains and the hills to the southwest are underlain by an extensive sequence of sedimentary, volcanic, and metamorphic rocks of … Mountains — 22 miles as the crow flies southwest of Quartzite. wellerr@cochise.edu last edited: 10/13/16 Gates Pass west side of Tucson Mountains, Pima County, Arizona. Mudstone with folded layers, Tucson Mountains, Arizona Whereabouts. Mountains Tucson Mountains Located west of Tucson, Arizona, the Tucson Mountains is not impressively high as they only reach up to 4,687 feet. Balanced boulders can be seen along the Gates Pass road in the Tucson Mountains, along the Mt. It has everything: geology, climate, desert plants and ecology, past and present cultures, pollination, pack rats, mining, sunsets, and more. Forms gentle, rolling topography. According to the Arizona Geological Survey: “Tucson Mountain Chaos is a formal geologic name, describing one of the more confusing, complex, and controversial areas in southern Arizona.” Like many mountain ranges in Southern Arizona, the Tucson Mountains have experienced several episodes of volcanic eruption. He was a consultant to the mining industry from 1973 to the early 1980s. Please cite by using: [a description of the item]. Desert heat, volcanic fire: The geologic history of the Tucson Mountains and southern Arizona (Arizona Geological Society digest) [Kring, David A] on Amazon.com. The volcano collapsed as the result of rapid eruption of volcanic ash which piled up in flows that reached an accumulated thickness of about three miles. Desert heat, volcanic fire: The geologic history of the Tucson Mountains and southern Arizona (Arizona Geological Society digest) and longitude 111º00' and 111º15'W. I collected this rock in the early 1970’s, a time during which I ... a time during which I was running a lot of geology field trips and mapping projects in Arrastre Wash, Ripple Wash, and Cabin Wash, while teaching field-based structural geology. Please cite by using: [a description of the item]. Towering stratovolcanoes erupted here with far greater explosive force than did modern Mount St. Helens, spewing several hundreds of cubic kilometers of hot volcanic debris across the landscape about 70 million years ago. 0000008855 00000 n 0000013477 00000 n The moun­ 0000012553 00000 n Each is the product of the interplay of geology, climate, vegetation, time, and often, human activities. Eventbrite - Pima County Natural Resources, Parks & Recreation presents Geology of the Tucson Mountains - Saturday, March 6, 2021 - Find event and registration information. Title: Geologic map of the Tucson Mountains caldera, southern Arizona Author(s): Lipman, P.W. 0000009924 00000 n Divided into lower conglomerate and upper chaos members. The mapping covers the Avra, Brown Mountain, Cat Mountain, and Jaynes 7 1/2’ quadrangles and includes part of the City of Tucson and unincorporated Pima County (Figure 1). Some calderas, e.g., Silver Bell Mountains, are associated with massive porphyry copper deposits that make up the foundation of Arizona's copper industry. Unique in all of Tucson, if not the world, is Tohono Chul’s Geology Wall exhibit. 0000016819 00000 n The landscapes that form the Santa Catalina Mountains of southeastern Arizona give that range a unique personality like no other in the American Southwest. Mayo, E.B. The mapping covers the Avra, Brown Mountain, Cat Mountain, and Jaynes 7 1/2’ quadrangles and includes part of the City of Tucson and unincorporated Pima County (Figure 1). Lemmon highway at Geology Vista, in Texas Canyon along I-10 east of Benson, and on Camelback Mountain (Echo Canyon) in Phoenix. %PDF-1.2 %���� is one of the favorite natural-cultural history short trips of Tucson. Peter Lipman's 'Geologic map of the Tucson Mountains Caldera, Southern Arizona' remains the definitive map of caldera geology. Users are responsible for verification of all facts and information to their own satisfaction. 0000016840 00000 n 0000016021 00000 n The Santa Catalina Mountains lie to the northeast, the Rincon Mountains are to the east of Tucson, and the Santa Rita Mountains lie to the south. https://ngmdb.usgs.gov/Prodesc/proddesc_10186.htm, Geologic map of the Tucson Caldera, Arizona, Silver Creek Caldera - Origin of Peach Spring Tuff, Hopi Buttes Volcanic Field, northern Arizona, Volcanoes of the San Francisco volcanic field. 0000015968 00000 n The Tucson Mts. 1,3,4 and 5 Uranium Mines, Coconino County, Arizona: Arizona Geological Survey Contributed Report CR-11-E, … Join geologist George online via Zoom to learn about the Tucson Mountains. Roger Weller, geology instructor. (1920) A geological reconnaissance of the Tucson and Amole Mountains, with Notes on the southern section of the Amole mining district, by M.A. https://ngmdb.usgs.gov/Prodesc/proddesc_10186.htm, 520.621.2470 | 1955 East 6th Street, P.O. This report and accompanying maps describe the surficial geology, geomorphology, and geologic hazards around the Tucson Mountains, on the western margin of the Tucson metropolitan area. The Tucson Mountains are a range small in scale and short in stature, but big on beauty and bold in ruggedness. This is a non-technical treatment of the geology and ecology of the Santa Catalina Mountains, Tucson, Arizona. W�� d��K�rp.σ��r�. The 'Tucson Mountains - Old Pueblo Mine, Copper Oxides' file is part of the John E. Kinnison mining collection. (1920). What was here, we ask, when … The highest peak in the Tucson Mountains is Wasson Peak at 4,687 feet, the terminus of many popular hiking trails in the park. The highest peak in the Tucson Mountains is Wasson Peak at 4,687 feet, the terminus of many popular hiking trails in the park. 0000001932 00000 n Jenkins, O.P., and Wilson, E.D. Kinnison spent over twelve years with ASARCO. Publishing Organization: U.S. Geological Survey Series and Number: Miscellaneous Investigations Series Map I-2205 Publication Date: 1993 Map Scale: 1:24,000 Cross Section: Yes North Latitude: 32° 22' 30" N (32.3750) South Latitude: 32° 7' 30" N (32.1250) The Tucson Mountains are largely the remains of an immense, more than 15-mile-long volcanic caldera, or collapsed volcano. The Tucson basin is a broad 1,000-square-mile area in the upper Santa Cruz River drainage basin. (1963) Volcanic orogeny of the Tucson Mountains (a preliminary report): Arizona Geological Society Digest: 6: 61-82. This report is intended to enhance our understanding of the recent geologic development of the northern Tucson metropolitan area and to aid in assessing and understanding geologic hazards in this area. The mapping covers the Avra, Brown Mountain, Cat Mountain, and Jaynes 7 1/2’ quadrangles and includes part of the City of Tucson and unincorporated Pima County (Figure 1). Dressler1, G. H. Leavesley2, R.C. The Tucson basin is bounded on the east and north by the Santa Rita, Empire, Rincon, Tanque Verde, Santa Catalina, and Tortolita Mountains and on the west by the Sierrita, Black, and Tucson Mountains (pi. Local geology included copper ore bodies distributed ... Plans for open pit mining there date to 1974 when Anamax first contemplated the investment in the Santa Rita Mountains southeast of Tucson. trailer << /Size 43 /Info 4 0 R /Encrypt 9 0 R /Root 8 0 R /Prev 35457 /ID[] >> startxref 0 %%EOF 8 0 obj << /Type /Catalog /Pages 6 0 R /Metadata 5 0 R >> endobj 9 0 obj << /Filter /Standard /R 2 /O ( U�V�.�`�����Dz�-���#_m�_�}�g) /U (�O�ؘ#�H���<6��S�82�>���,��M) /P -4 /V 1 /Length 40 >> endobj 41 0 obj << /S 46 /Filter /FlateDecode /Length 42 0 R >> stream In certain cases, the rivers draining mountain ranges create unusually large fan-shaped bodies of sediment that are referred to as fluvial megafans. The Tucson SE 7.5' quadrangle is located southeast of the city of Tucson, Arizona, between Wilmot and Houghton Roads and bisected by Interstate 10. The Tucson and Amole Mountains are so accessible for visitors to Tucson that it is believed a brief description of the geology and mineral resources of these mountains will prove welcome. The Tucson Mountains are composed of volcanic rocks that collapsed into a caldera about 70 million years ago. The Tucson Mountain block is about 20 miles long and up to 7 miles wide at present, although valley fill covers much of the lower slopes of the mountain block. Box 210184, Tucson, AZ 85721. What can 10,000 years possibly mean to us, let alone 65,000 or 70 million? Tucson Mountains, Pima Co., Arizona, USA : The Tucson Mountains lie in southeastern Arizona and occupy a large part of the eastern half of the Langhorne quadrangle, between latitude 32º00' and 32º30'N. 0000009705 00000 n The Tucson Mountain block is about 20 miles long and up to 7 miles wide at present, although valley fill covers much of the lower slopes of the mountain block. Simplified geology map of the area surrounding Tucson (from the Arizona Geological Survey). Regionally, the map area is southwest of the Pantano Wash. Portions of this map area have been developed since the most recent aerial photography; therefore these areas were mapped from the air photos and ground checked where possible. The USGS (U.S. Geological Survey) publishes a set of the most commonly used topographic maps of the U.S. called US Topo that are separated into rectangular quadrants that are printed at 22.75"x29" or larger. 0000019297 00000 n The mountains generally are within the Coronado National Forest and are not developed, but some homes have been built on the lower flanks of the mountains up to the forest boundary. First of all, thereis the notion of geologic time.We humans think in terms oflifetimes or of centuries. A non-technical treatment of the geology and ecology of the Santa Catalina Mountains, Tucson, Arizona. 231-087, Walter E. Heinrichs, Jr. mining collection, Arizona Geological Survey. The Tucson Mountain caldera is one of several Late Cretaceous calderas that crop out in southern and southeastern Arizona. Charles E. Eichelberger in 1896 discovered a high-grade gold ore body in the Kofa Mountains — also known as the S.H. Day 1 – The Geology Wall. 0000018633 00000 n Bales3, S.R. The map layout is … Title: Geologic map of the Tucson Mountains caldera, southern Arizona Author(s): Lipman, P.W. Natural landscapes have distinctive personalities. 0000025469 00000 n 0000001719 00000 n Allen: Arizona Bureau of Mines Bulletin no. Chenoweth, W.L., 2011, The Geology and Production History of the Jack Daniels Nos. The Tucson Mts. 0000017669 00000 n The dominant vegetation types are desertscrub and desert grassland.The vascular flora is unusually rich with 630 specific and infraspecific taxa in 332 genera and 80 families. thesis, 42 p. Bickerman (1962). Some calderas, e.g., Silver Bell Mountains, are associated with massive porphyry copper deposits that make up the foundation of Arizona's copper industry. ics, which holds the key to understanding Sketch Map of the Tucson Mountains supervolcano. This 99-page booklet includes more than 100 images, maps, and illustrations on the geology and natural history of 11 Madrean sky island mountain ranges: in the order in which they appear in the text; Santa Catalina, Rincón, Tortolita, Santa Rita, Tucson, Galiuro, Pinaleño, Chiricahua, Mule, Huachuca, and Whetstone Mountains. Copper mineralization occurs in the Tucson Mountains, but not to the extent seen elsewhere. Since the 1970s, the region has seen average temperatures rise 2 degrees as well as extended periods of drought. 0000014278 00000 n The lowest of the four mountain ranges immediately surrounding the city of Tucson (the others are the Santa Catalina Mountains, the Rincon Mountains and the Santa Rita Mountains) they are nonetheless the mountains that really yell “Tucson!”. This report and accompanying maps describe the surficial geology, geomorphology, and geologic hazards around the Tucson Mountains, on the western margin of the Tucson metropolitan area. Copper mineralization occurs in the Tucson Mountains, but not to the extent seen elsewhere. Following, his retirement from Duval's successor, Battle Mountain Gold in 1991, Bob worked as a consultant for major corporations in the United States, Latin America and Australia. 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. 0000001490 00000 n The Tucson Mountain caldera is one of several Late Cretaceous calderas that crop out in southern and southeastern Arizona. The information comprises a GIS database and a visualization of the data as a default map layout. The Tucson Mountains are the remains of a collapsed volcano ranging 15 miles long. GEOLOGY OF THE SOUTH COMOBABI MOUNTAINS AND KO YAYA HILLS PIMA COUNTY, ARIZONA by Leonid Bryner ABSTRACT The South Comobabi Mountains and Ko Vaya Hills are in the Papago Indian Reservation in southern Arizona, about midway between the towns of Tucson and Ajo. The Tucson Mountains (O'odham: Cuk Doʼag) are a minor mountain range west of Tucson, Arizona. Scenery on the 90-minute drive from downtown Tucson to the top of the highest mountain peak in the Santa Catalina Mountains, Mt. 106, 29 p. 0000011760 00000 n Tucson Mountains is covered by the Cat Mountain, AZ US Topo Map quadrant These rocks consist dominantly of Eocene muscovite leucogranite and pegmatite sills within Proterozoic granite, with middle Proterozoic and Paleozoic metasedimentary rocks preserved at the crest of the range (Keith et al., 1980; Force, 1997). The South Comobabi Mountains form on To scientists' surprise, they found scores of dead trees and shrubs at lower altitudes, but flourishing plants uphill. 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