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Science in China Series D: Earth Sciences

, Volume 45, Issue 9, pp 792–800 | Cite as

Quantitative reconstruction of the lake water paleotemperature of Daihai Lake, Inner Mongolia, China and its significance in paleoclimate

  • Ji Shen
  • Matsumoto Ryo
  • Sumin Wang
  • Yuxin Zhu
Article

Abstract

By measuring Sr/Ca ratios of the ostracod shells (Limnocthere cf. inopinata) in sediments of the Daihai Lake, and combined with Sr2+/Ca2+ ratios of the lake water, this paper obtained paleosalinity of the lake water. Vaporizing experiment of the lake water in laboratory showed that there was a quantitative relationship between salinity and oxygen isotope. Using this relationship, oxygen isotope values of the paleo-lake water were calculated. By measuring the oxygen isotope of the authigenic carbonate in the lake’s sediments, and in combination with the oxygen isotope values of the paleo-lake water, the paleotemperature of the lake water was calculated. Finally, based on these proxies, the paleoclimate in the lake basin was explored.

Keywords

paleotemperature of the Daihai Lake water quantitative reconstruction paleoclimate 

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Copyright information

© Science in China Press 2002

Authors and Affiliations

  1. 1.Nanjing Institute of Geography and LimnologyChinese Academy of SciencesNanjingChina
  2. 2.Geological InstituteTokyo UniversityTokyoJapan

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