Fossil pigments as indicators for palaeoclimatic interpretations —A case study of Qinghai Lake

Han Xiaozhong; Shen Han; Wang Sumin; Yu Yuansheng

doi:10.1007/BF02843832

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Fossil pigments as indicators for palaeoclimatic interpretations —A case study of Qinghai Lake

Updated：2023-05-16

- Fossil pigments as indicators for palaeoclimatic interpretations —A case study of Qinghai Lake
- Journal of Oceanology and Limnology Vol. 10, Issue 4, Pages: 320-324(1992)
- Affiliations：
  
  Nanjing Institute of Geography and Limnology
- Author bio：
- Funds：
- DOI：10.1007/BF02843832
  CLC：
- Published：1992
- Accepted：
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Xiaozhong, H., Han, S., Sumin, W. et al. Fossil pigments as indicators for palaeoclimatic interpretations —A case study of Qinghai Lake., Chin. J. Ocean. Limnol. 10, 320–324 (1992). https://doi.org/10.1007/BF02843832
DOI：

Xiaozhong, H., Han, S., Sumin, W. et al. Fossil pigments as indicators for palaeoclimatic interpretations —A case study of Qinghai Lake., Chin. J. Ocean. Limnol. 10, 320–324 (1992). https://doi.org/10.1007/BF02843832 DOI：

摘要

Abstract

An 82 cm core was collected from Qinghai Lake in the Qinghai-Xizang Plateau

China and sectioned in intervals of 1 cm for analysis of pigments (i. e. chlorophyll derivatives

carotenoids

myxoxanthophyll

oscillaxanthin) and210Pb.210Pb dating was used to establish the chronological sequence. The concentrations of myxoxanthophyll and oscillaxanthin from the cyanophytes increase with temperature. There are four peak values at 0–14 cm (present−1891a)

25 cm (1786a)

45 cm (1581a)

60 cm (1416a) representing four warm and low water level periods during the past 700 years. This was confirmed by the high concentration of carbonate and ∂13C in these stages. In these 700 years

there were also 4 periods of cold wet climate and high water level as indicated by the tree ring index and high value of native chlorophyll and high

variable CD/TC ratios.

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references

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Gorham, E., 1961. Chlorophyll derivatives, sulfur and carbon in cores from two English lakes.Can. J. Bot. 39: 333–338.

Lanzhou Institute of Geology, Academia Sinica, 1979. Qinghai Lake Monograph of the 1961 Expedition. Science Press, Beijing, pp. 24–39. (in Chinese)

Sanger, J. E., 1988. Fossil pigments in palaeoecology and palaeolimnology.Palaeogeogra. Palaeoclimatol. Palaeoecol. 62: 343–359.

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Wang Sumin and Li Jianren, 1991. Lacustrine sediments—an indicator of historical climatic variation— the case of Qinghai Lake and Daihai Lake.Kexue Tongbao 36: 54–56. (in Chinese)

Wang Yuxi et al., 1983. The relationship between tree rings of Qilianshan juniper and climatic change and glacial activity during the past 1000 years in China.A Monthly Journal Science 28: 1645–1657.

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