TIMS U-series ages of speleothems from the Tangshan caves, Nanjing

Yongjin Wang, Cheng Hai, Conglun Luo, Yingfei Xia, Jiangying Wu, Jun Chen

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Abstract

U-series ages of a set of speleothem samples from the two caves near Tangshan Town, Nanjing, determined by thermal ionization mass spectrometry (TIMS), range from older than 500 KaBP to around 20 kaBP. These dated speleothems with unequivocal stratigraphic layers in cave sediments provide basic data to establish a geochronologic sequence for the cave sediments. Together with the buried layers of two hominid craniums, it is argued that the two fossil craniums, probably transported into the cave, deposited in different geological periods. The ages of one flowstone sample and stalagmites mark an upper limit of 500 KaBP for geochronology of No. 1 fossil cranium, and suggest No. 2 fossil cranium deposited within the age range of 500-240 KaBP.

Original languageEnglish (US)
Pages (from-to)1987-1991
Number of pages5
JournalChinese Science Bulletin
Volume44
Issue number21
DOIs
StatePublished - Nov 1999

Keywords

  • Homo erectus
  • Nanjing
  • Speleothem
  • U-series age

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    Wang, Y., Hai, C., Luo, C., Xia, Y., Wu, J., & Chen, J. (1999). TIMS U-series ages of speleothems from the Tangshan caves, Nanjing. Chinese Science Bulletin, 44(21), 1987-1991. https://doi.org/10.1007/BF02887125