Science in China Series D: Earth Sciences

, Volume 44, Issue 4, pp 326–335

Single zircon U-Pb dating of the Kongling high-grade metamorphic terrain: Evidence for >3.2 Ga old continental crust in the Yangtze craton

  • Shan Gao
  • Yumin Qiu
  • Wenli Ling
  • McNaughton Neal J. 
  • Groves David I. 
Article

DOI: 10.1007/BF02907103

Cite this article as:
Gao, S., Qiu, Y., Ling, W. et al. Sci. China Ser. D-Earth Sci. (2001) 44: 326. doi:10.1007/BF02907103

Abstract

Single zircons from two trondhjemitic gneisses and two clastic metasedimentary rocks without Eu anomaly of the Kongling high-grade metamorphic terrain are dated by thein situSHRIMP U-Pb method. The results show that the trondhjemitic magma emplaced at 2947-2903 Ma. Concordant age of as old as 3.3 Ga is present in the detrital zircons from the clastic metasedimentary rocks. Together with the depleted mantle Nd model age (TDM =3.2-3.3 Ga) of the clastic metasedimentary rocks, this documents the presence of Paleoarchean continental crust in the Yangtze craton.

Keywords

Kongling high-grade metamorphic terrainzircon U-Pb ageSHRIMP ArcheanYangtze craton

Copyright information

© Science in China Press 2001

Authors and Affiliations

  • Shan Gao
    • 1
    • 2
  • Yumin Qiu
    • 3
  • Wenli Ling
    • 2
  • McNaughton Neal J. 
    • 3
  • Groves David I. 
    • 3
  1. 1.Department of GeologyNorthwest UniversityXi’anChina
  2. 2.Faculty of Earth SciencesChina University of GeosciencesWuhanChina
  3. 3.Key Center for Teaching and Research in Strategic Mineral DepositsThe University of Western AustraliaNedlandsAustralia