A high-resolved record of the Asian Summer Monsoon from Dongge Cave, China for the past 1200 years

Kan Zhao, Yongjin Wang, R. Lawrence Edwards, Hai Cheng, Dianbing Liu, Xinggong Kong

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Two annually-laminated and 230Th-dated stalagmite oxygen isotope (δ18O) records from Dongge Cave, China, provided a high-resolution Asian Summer Monsoon (ASM) history for the past 1200 years. A close similarity between annual band thickness and stable isotope analyses (δ13C and δ18O) suggests the calcite δ18O is most likely a proxy associated with ASM precipitation. The two duplicated stalagmite δ18O records show that the ASM varies at a periodicity of ~220 years, concordant with a dominant cycle of solar activity. A period of strong ASM activity occurred during the Spörer Minimum (1450-1550 A.D.), followed by a striking drop circa 1580 A.D., potentially consistent with the social unrest in the final decades of China's Ming Dynasty (1368-1644 A.D.). Centennial-scale changes in ASM precipitation over the last millennium match well with changes in tropical Atlantic sea surface temperatures (SSTs) and South American summer monsoon precipitation. Our findings suggest that variations in low-latitude monsoon precipitation are probably driven by shifts in the mean position of the intertropical convergence zone (ITCZ), which is further mediated by solar activity and tropical SSTs.

Original languageEnglish (US)
Pages (from-to)250-257
Number of pages8
JournalQuaternary Science Reviews
StatePublished - Aug 5 2015


  • Asian Summer Monsoon
  • China
  • Dongge Cave
  • Past millennium
  • Stalagmite
  • δO

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