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Volcanology and associated hazards of the San Francisco volcanic field

Nancy R. Riggs, Michael Ort, Chuck Connor, Fabrizio Alfano and Michael Conway
Volcanology and associated hazards of the San Francisco volcanic field (in Geologic excursions in southwestern North America, Philip A. Pearthree (editor))
Field Guide (Geological Society of America) (September 2019) 55: 127-146


The San Francisco volcanic field stretches from Williams, Arizona, in the west, to northeast of Flagstaff, Arizona, on the east. Within the approximately 5000 km2 area, more than 600 volcanoes are primarily monogenetic and basaltic, but silicic stratovolcanoes and domes are present as well. This field guide focuses on five broadly basaltic cones (Government Prairie vent, Red Mountain, SP Crater, Colton Crater, and Sunset Crater) and two silicic volcanoes (Kendrick Peak and San Francisco Mountain) in the field, with an emphasis on the different kinds of volcanic activity represented and the petrological variations. Hazards assessment indicates that is it possible for future eruptions to affect Flagstaff, but the probability is low. As information in this guide indicates, hazard assessments need to be improved to encompass a wide range of eruption types, and additional data are needed to improve models of the rate of volcanic activity and how the locus of activity has shifted over time.

ISSN: 2333-0937
EISSN: 2333-0945
Serial Title: Field Guide (Geological Society of America)
Serial Volume: 55
Title: Volcanology and associated hazards of the San Francisco volcanic field
Title: Geologic excursions in southwestern North America
Author(s): Riggs, Nancy R.Ort, MichaelConnor, ChuckAlfano, FabrizioConway, Michael
Author(s): Pearthree, Philip A.editor
Affiliation: Northern Arizona University, Division of Geosciences, Flagstaff, AZ, United States
Affiliation: University of Arizona, Arizona Geological Survey, Tucson, AZ, United States
Pages: 127-146
Published: 20190904
Text Language: English
Publisher: Geological Society of America, Boulder, CO, United States
References: 38
Accession Number: 2020-016664
Categories: Environmental geologyQuaternary geology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table, geol. sketch maps
N34°00'00" - N36°00'00", W112°30'00" - W111°30'00"
Secondary Affiliation: University of South Florida, USA, United StatesArizona State University, USA, United StatesUniversity of Arizona, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2020, American Geosciences Institute.
Update Code: 2020
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