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dc.contributor.authorFerguson, C.A.
dc.date.accessioned2018-09-29T02:11:42Z
dc.date.available2018-09-29T02:11:42Z
dc.date.issued2005
dc.identifier.citationFerguson, C.A., 2005, Field guide to the overlooks of Fish Creek Canyon, Superstition Mountains, Pinal County, Arizona. Arizona Geological Survey Open File Report, OFR-05-01, 16 p.
dc.identifier.urihttp://hdl.handle.net/10150/629734
dc.descriptionThis report is intended to be both a teaching and field guide for a spectacularly exposed sequence of silicic volcanic rocks in the northern Superstition Mountains, south-central Arizona. The sequence spans the contact between the Goverment Well and Tule Canyon formations as exposed along Fish Creek Canyon just south of the Salt River. The area of interest has been mapped by graduate students at Arizona State University (Malone, 1972; Suneson, 1976; Isagholian, 1983) and as part ofthe Arizona Geological Survey's 1997 STATEMAP program (Gilbert and Ferguson, 1997). The rocks examined are in the upper part of the 20.5Ma- 18.6Ma Superstition Group (Figure 1) which represents ~650 km3 of intermediate to silicic lavas that were erupted prior to formation of the 350 km2 Superstition caldera. The caldera is the source of the 18.6Ma, ~800 km3 Apache Leap Tuff (Ferguson and Skotnicki, 1996; McIntosh and Ferguson, 1998; Ferguson and Trapp, 2001). The lack of structural complexity, remarkable exposure, general lack of alteration, and ease of access makes this one of the best areas in Arizona for examining silicic lava flows and associated pyroclastic rocks. (16 pages)
dc.language.isoen
dc.relation.ispartofseriesOFR-05-01
dc.relation.urlhttps://library.azgs.arizona.edu/item/AOFR-1552429273344-66
dc.rightsArizona Geological Survey. All rights reserved.
dc.subjectArizona Geological Survey Open File Reports
dc.subjectArizona
dc.subjectPinal County
dc.subjectSuperstition Mountians
dc.subjectFish Creek Canyon
dc.subjectigneous rock
dc.subjectpyroclastic rocks
dc.subjectsilicic volcanic rocks
dc.subjectoverlooks
dc.subjectfield guide
dc.titleField guide to the overlooks of Fish Creek Canyon, Superstition Mountains, Pinal County, Arizona
csdgm.bounding.west-111.72
csdgm.bounding.east-111.116
csdgm.bounding.north33.5506
csdgm.bounding.south33.1099
dc.description.collectioninformationDocuments in the AZGS Document Repository collection are made available by the Arizona Geological Survey (AZGS) and the University Libraries at the University of Arizona. For more information about items in this collection, please contact azgs-info@email.arizona.edu.
refterms.dateFOA2018-09-29T02:11:42Z


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