Fossil pigments as indicators for palaeoclimatic interpretations —A case study of Qinghai Lake[J]. 海洋湖沼学报(英文), 1992,10(4):320-324.
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
Fossil pigments as indicators for palaeoclimatic interpretations —A case study of Qinghai Lake[J]. 海洋湖沼学报(英文), 1992,10(4):320-324. DOI: 10.1007/BF02843832.
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/BF02843832DOI:
Fossil pigments as indicators for palaeoclimatic interpretations —A case study of Qinghai Lake
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.
关键词
Keywords
references
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