articleAnnual Review of Earth and Planetary SciencesFeb 6, 2014BRONZE OA

Detrital Zircon U-Pb Geochronology Applied to Tectonics

GEGeorge E. Gehrels

University of Arizona

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Abstract

Detrital zircon geochronology is rapidly developing into an essential tool in Earth science research because of the widespread occurrence of zircon in sedimentary systems; the wide range of information that can be extracted from zircon crystals; the ability to determine ages with reasonable precision, accuracy, and efficiency; and the wide range of new ideas about how to use detrital zircon geochronologic information. The U-Pb system is particularly powerful because three chronometers are available ( 238 U→ 206 Pb, 235 U→ 207 Pb, and 232 Th→ 208 Pb), but challenges arise because of complexities from inheritance and Pb loss. Ages can be used to constrain the age of deposition of the host sediment, reconstruct…

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Topics & keywords

Topics
Keywords
  • Zircon
  • Geochronology
  • Provenance
  • Geology
  • Geochemistry
  • Sedimentary rock
  • Tectonics
  • Earth science
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