Detrital zircon record and tectonic setting

P. A. Cawood*, C. J. Hawkesworth, B. Dhuime

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

645 Citations (Scopus)

Abstract

Detrital zircon spectra reflect the tectonic setting of the basin in which they are deposited. Convergent plate margins are characterized by a large proportion of zircon ages close to the depositional age of the sediment, whereas sediments in collisional, extensional and intracratonic settings contain greater proportions with older ages that reflect the history of the underlying basement. These differences can be resolved by plotting the distribution of the difference between the measured crystallization ages (CA) of individual zircon grains present in the sediment and the depositional age (DA) of the sediment. Application of this approach to successions where the original nature of the basin and/or the link to source are no longer preserved constrains the tectonic setting in which the sediment was deposited.

Original languageEnglish
Pages (from-to)875-878
Number of pages4
JournalGeology
Volume40
Issue number10
DOIs
Publication statusPublished - Oct 2012

Keywords

  • LAURENTIAN MARGIN
  • SEDIMENTARY-ROCKS
  • NORTH-ATLANTIC
  • APPALACHIANS
  • CONSTRAINTS
  • AUSTRALIA
  • RODINIA
  • BREAKUP
  • BELT
  • AGES

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