2017/07/18 by Liang Duan, Qing-Ren Meng, Qing‐Ren Meng +4 · 2 citations
Earth and Planetary Sciences · #Geological and Geochemical Analysis #Geological and Geophysical Studies #earthquake and tectonic studies
paper · doi:10.1130/b31630.1
Research Article| July 18, 2017 New insights on the Triassic tectonic development of South China from the detrital zircon provenance of Nanpanjiang turbidites Liang Duan; Liang Duan † 1State Key Laboratory of Continental Dynamics, and Department of Geology, Northwest University, Xi'an, Shaanxi 710069, China2Department of Earth and Environmental Sciences, and Lamont-Doherty Earth Observatory of Columbia University, Palisades, New York 10964, USA †[email protected] Search for other works by this author on: GSW Google Scholar Qing-Ren Meng; Qing-Ren Meng 3Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China Search for other works by this author on: GSW Google Scholar Nicholas Christie-Blick; Nicholas Christie-Blick 2Department of Earth and Environmental Sciences, and Lamont-Doherty Earth Observatory of Columbia University, Palisades, New York 10964, USA Search for other works by this author on: GSW Google Scholar Guo-Li Wu Guo-Li Wu 3Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China Search for other works by this author on: GSW Google Scholar Author and Article Information Liang Duan † 1State Key Laboratory of Continental Dynamics, and Department of Geology, Northwest University, Xi'an, Shaanxi 710069, China2Department of Earth and Environmental Sciences, and Lamont-Doherty Earth Observatory of Columbia University, Palisades, New York 10964, USA Qing-Ren Meng 3Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China Nicholas Christie-Blick 2Department of Earth and Environmental Sciences, and Lamont-Doherty Earth Observatory of Columbia University, Palisades, New York 10964, USA Guo-Li Wu 3Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China †[email protected] Publisher: Geological Society of America Received: 04 Aug 2016 Revision Received: 30 Mar 2017 Accepted: 29 May 2017 First Online: 18 Jul 2017 Online Issn: 1943-2674 Print Issn: 0016-7606 © 2018 Geological Society of America GSA Bulletin (2018) 130 (1-2): 24–34. https://doi.org/10.1130/B31630.1 Article history Received: 04 Aug 2016 Revision Received: 30 Mar 2017 Accepted: 29 May 2017 First Online: 18 Jul 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Liang Duan, Qing-Ren Meng, Nicholas Christie-Blick, Guo-Li Wu; New insights on the Triassic tectonic development of South China from the detrital zircon provenance of Nanpanjiang turbidites. GSA Bulletin 2017;; 130 (1-2): 24–34. doi: https://doi.org/10.1130/B31630.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract The tectonically complex geology of southeast Asia provides a unique window on the mechanics of continental collision, and the ways in which orogens are assembled through a combination of steady-state subduction and the closure of ocean basins. The Triassic turbidite system of the Nanpanjiang basin has long been accepted as a sedimentary archive of the collision between the South China and Indochina blocks. Paleocurrent restoration and the arrangement of deep-water architectural elements together suggest that the turbidite system was filled primarily from east to west, consistent with axial flow in deep water roughly parallel to intrabasinal faults. These observations and new U-Pb ages and Hf isotope data for detrital zircons obtained from Middle Triassic turbidites and approximately correlative Ladinian floodplain deposits suggest that the sediments were not derived from the hypothesized collisional orogen, but for the most part came from a poorly preserved arc associated with the convergent plate boundary of southern China. Hafnium isotopic data for dated euhedral zircons of Paleozoic age more closely match the pattern expected for steady-state subduction of oceanic lithosphere than for continental collision. Our data lead to a new model for the Triassic tectonic evolution of South China and draw attention to the value of dating detrital grains within the sediment delivery system as well as at the final site of turbidite deposition. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.