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HaiTao You JiaQi Liu Qiang Liu GuoQiang Chu Patrick Rioual JingTai Han 《科学通报(英文版)》2008,53(2):262-266
In a sediment sequence from Erlongwan maar lake that spans the last 13 ka BP, two main varve types can be recognized: biogenic varves (from the present to -11.2 ka BP, 0-632 cm) and clastic varves (from -11.2 to -12.7 ka BP, 632-700 cm). Based on the dominant types of algae contained in the sediment, the biogenic varves can be classified into dinocyst-biogenic varves (0-63 cm) and mixed (dinocyst and diatom)-biogenic varves (214-632 cm). In this paper, the formation process and components of the varve are described, the possible reason for the types of varve changing throughout the record is discussed and a high-resolution varve chronology is established spanning the last 13 ka BP. Although further varve counting and error assessment are needed, the results presented here represent a solid foundation for studying the palaeoclimate record of Erlongwan maar lake. 相似文献
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Study of the varve record from Erlongwan maar lake, NE China, over the last 13 ka BP 总被引:1,自引:0,他引:1
《科学通报(英文版)》2008,(2)
In a sediment sequence from Erlongwan maar lake that spans the last 13 ka BP, two main varve types can be recognized: biogenic varves (from the present to ~11.2 ka BP, 0―632 cm) and clastic varves (from ~11.2 to ~12.7 ka BP, 632―700 cm). Based on the dominant types of algae contained in the sediment, the biogenic varves can be classified into dinocyst-biogenic varves (0―63 cm) and mixed (dinocyst and diatom)-biogenic varves (214―632 cm). In this paper, the formation process and com- ponents of the varve are described, the possible reason for the types of varve changing throughout the record is discussed and a high-resolution varve chronology is established spanning the last 13 ka BP. Although further varve counting and error assessment are needed, the results presented here repre- sent a solid foundation for studying the palaeoclimate record of Erlongwan maar lake. 相似文献
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