Chinese Science Bulletin

, Volume 45, Issue 24, pp 2277–2280 | Cite as

Age estimation of the mid-Pleistocene microtektite event in the South China Sea: A case showing the complexity of the sea-land correlation

  • Jiliang Wang
  • Quanhong Zhao
  • Xinrong Cheng
  • Rujian Wang
  • Pinxian Wang


The present study confirms the stratigraphical position of microtektite layer being clearly located below the Brunhes/Matuyama (BIM) boundary. Based on the sedimentation rate derived from the stable isotopic and magnetic data of ODP Site 772A, cores 17957 and 17959 in the South China Sea, the age of the mid-Pleistocene impact event was estimated at 1–12 ka earlier than the Brunhes-Matuyama polarity reversal. However, the microtektites were found above the measured BIM boundary in the loess profile due to the downward deviation of the measured B/M boundary from its true position[1]. This demonstrates the complexity of paleo-magnetic records in the loess profiles which, in turn, causes the confusion in the sea-land stratigraphic correlation.


microtektites Brunhes/Matuysma (BN) boundary mid-Pleistocene sea-land correlation 


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Copyright information

© Science in China Press 2000

Authors and Affiliations

  • Jiliang Wang
    • 1
  • Quanhong Zhao
    • 1
  • Xinrong Cheng
    • 1
  • Rujian Wang
    • 1
  • Pinxian Wang
    • 1
  1. 1.Laboratory of Marine Geology, MOETongji UniversityShanghaiChina

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