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GEOREF RECORD

Recycling detrital zircons; a case study from the Cretaceous Bisbee Group of southern Arizona

William R. Dickinson, Timothy F. Lawton and George E. Gehrels
Recycling detrital zircons; a case study from the Cretaceous Bisbee Group of southern Arizona
Geology (Boulder) (June 2009) 37 (6): 503-506

Abstract

Statistically indistinguishable U-Pb age spectra for detrital zircon populations from the quartzose petrofacies of the fluvial Lower Cretaceous Bisbee Group (southeastern Arizona) and from quartzose eolianites of the Middle to Upper Jurassic San Rafael Group (eastern Colorado Plateau) support the inference that quartzose detritus was reworked into the Bisbee basin of the border rift belt from older eolianites exposed along the uplifted rift shoulder to the north. The comparative data indicate that age spectra of detrital zircons can be reproduced faithfully during sediment recycling, and the possibility of zircon recycling should be considered for many provenance interpretations based on U-Pb ages of detrital zircons. Analogous relations between U-Pb age spectra of detrital zircons in the Lower Cretaceous basal McCoy Mountains Formation (California) and in Lower to Middle Jurassic eolianites of the western Colorado Plateau to the north suggest similar reworking of detritus from sedimentary cover of the rift shoulder into the keel of the rift belt farther west.


ISSN: 0091-7613
EISSN: 1943-2682
Coden: GLGYBA
Serial Title: Geology (Boulder)
Serial Volume: 37
Serial Issue: 6
Title: Recycling detrital zircons; a case study from the Cretaceous Bisbee Group of southern Arizona
Affiliation: University of Arizona, Department of Geosciences, Tucson, AZ, United States
Pages: 503-506
Published: 200906
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
References: 11
Accession Number: 2009-062864
Categories: Sedimentary petrologyGeochronology
Document Type: Serial
Bibliographic Level: Analytic
Annotation: With GSA Data Repository Item 2009120
Illustration Description: illus. incl. geol. sketch map
N31°45'24" - N31°45'24", W109°21'18" - W109°21'18"
Secondary Affiliation: New Mexico State University, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States
Update Code: 200934
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