A Guide to the Geology of Sabino Canyon and the Catalina Highway

A Guide to the Geology of Sabino Canyon and the Catalina Highway PDF

Author: John V. Bezy

Publisher: Arizona Geological Survey

Published: 2004

Total Pages: 56

ISBN-13: 9781892001214

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This beautifully illustrated guide provides a geologist¿ s eye view into the geologic setting and history of the Santa Catalina Mountains. With this text in hand, the reader will peer into the window that Sabino Canyon offers into the core of the Santa Catalina Mountains. Photographs of granite, gneiss, schist and other rocks will enrich your visit. A simplified geologic map places the geology in context, while block diagrams and cross-sections illustrate how the mountains formed and how major faults, complemented by weathering and erosion, shape and sculpt the range. For those ascending Catalina Highway to the summit of Mt. Lemmon, this guide points out major geographic features, roadsite rock outcrops, and discusses how geologic processes, still operating today, shape and reshape the mountain¿s flanks and summit.

Geology and Mineral Resources of the Santa Catalina Mountains, Southeastern Arizona

Geology and Mineral Resources of the Santa Catalina Mountains, Southeastern Arizona PDF

Author: Eric R. Force

Publisher: Center for Mineral Resources

Published: 1997

Total Pages: 162

ISBN-13:

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This monograph is the most comprehensive treatment available of the geology of the Santa Catalina Mountains north of Tucson, expanding greatly on classic older descriptions of the southern Catalinas. The study treats the entire range with a cross-sectional emphasis to clarify relations among the mylonitic core-complex aspects to the south, passing northward through voluminous Tertiary granitic rocks and an older deformed and metamorphosed zone into a tilted relic of the Plateau. New rock units such as Precambrian glaciomarine deposits are introduced, and the mineral-resource character and potential of each segment of the range is described. The book includes a full-color 1:48,000 geologic map of an 11 x 48 km transect through the range, oriented to permit reconstruction of the jigsaw puzzle produced by Tertiary crustal stretching. Three other detailed maps and descriptions of key localities make the monograph a self-guided tour through the geologic history of the range.

And Then There Were None

And Then There Were None PDF

Author: Paul R. Krausman

Publisher: University of New Mexico Press

Published: 2017-04-01

Total Pages: 248

ISBN-13: 0826357865

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Once plentiful in the mountains of southern Arizona, by the 1990s desert bighorn sheep were wiped out in the Pusch Ridge Wilderness of the Santa Catalina Mountains as a result of habitat loss and alteration. This book uses their history and population decline as a case study in human alteration of wildlife habitat. When human encroachment had driven the herd to extinction, wildlife managers launched a major and controversial effort to reestablish this population. For more than forty years Paul R. Krausman directed studies of the Pusch Wilderness population of these iconic animals, located in the mountainous outskirts of Tucson. The story he tells here reveals the complex relationships between politics and biology in wildlife conservation. His account of the evolution of wildlife conservation practices includes discussions of techniques and of human attitudes toward predators, fire, and their management.

From the Islands to the Mountains

From the Islands to the Mountains PDF

Author: Richard V. Heermance

Publisher:

Published: 2020

Total Pages: 195

ISBN-13: 9780813756592

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This volume includes five geologic field-trip guides in the Los Angeles region associated with the 2020 GSA Cordilleran Section Meeting that was scheduled for May 2020, in Pasadena, California. The guides are organized in a generally counterclockwise order around the Los Angeles Basin. The first guide by Burgette et al. provides new slip rates, age constraints, and observations of the active Sierra Madre fault zone that borders the northern side of the San Gabriel and San Fernando Valleys. The Nourse et al. guide takes a new look at the San Gabriel Mountains from a basement and geomorphologic perspective. Further west, Keller et al. provide one of the first published field-trip guides focused on the 9 January 2018 Montecito debris flows that caused 23 deaths. The volume then moves south to Santa Cruz Island, where Davis et al. provide an updated review of the island’s geology within the California borderlands. The final guide returns to the east, where Platt et al. present the unique geology of Santa Catalina Island with a focus on the subduction-related Catalina Schist.

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