Journal article

Provenance of the Upper Cretaceous to Lower Tertiary Sedimentary Relicts in the Renbu Mélange Zone, within the Indus-Yarlung Suture Zone

G Li, M Sandiford, S Boger, undefined Liu, L Wei

The Journal of Geology | The University of Chicago Press | Published : 2015

Abstract

The Upper Cretaceous to Lower Tertiary sediments in the Indus-Yarlung suture zone provide critical records on the history of accretion along the southern margin of Asia prior to, and during, the India-Asia collision. In this article, we report field and petrographic observations, in situ detrital zircon U-Pb ages, Lu-Hf isotopic analyses, and Cr-spinel electron microprobe data from the Upper Cretaceous to Lower Tertiary sedimentary rocks of the Renbu mélange zone in east Xigaze, southern Tibet. The Renbu mélange zone consists of two serpentinite mélange subzones separated by a mud-matrix mélange. Using similarities found in the compositions of detrital Cr-spinels and detrital zircon U-Pb age..

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Grants

Awarded by Australia Research Council


Awarded by Geological Survey of China


Awarded by basic foundation of the Institute of Geology, Chinese Academy of Geological Science


Funding Acknowledgements

We thank anonymous reviewers and Editor David B. Rowley, whose careful and thorough comments significantly improved this article. We are grateful to A. Greg and J. Woodhead for help with zircon U-Pb and Hf isotope experiments. This study was financially supported by grants from the Australia Research Council (Discovery Early Career Research Award; DE120102245), Geological Survey of China (1212011121275), and the basic foundation of the Institute of Geology, Chinese Academy of Geological Science (J1108).