| 昆明滇池沉积速率的测定 |
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| 引用本文： | 于银亭,李培泉,吴润,孟伟,刘玉生,邹兰.昆明滇池沉积速率的测定[J].海洋与湖沼,1996,27(1):41-45. |
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| 作者姓名： | 于银亭 李培泉 吴润 孟伟 刘玉生 邹兰 |
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| 作者单位： | 中国科学院海洋研究所!青岛266071(于银亭，李培泉)，青岛大学化学系!青岛266071(吴润)，中国环境科学院!北京100012(孟伟，刘玉生，邹兰) |
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| 基金项目： | 中国环科院资助!890450 |
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| 摘 要： | 于１９８９年１２月采用＾２１０Ｐｂ法测定昆明滇池（草海和外海）两个柱样的沉积速率，其值分别为０．２９ｃｍ／ａ和０．２８ｃｍ／ａ，平均值约为０．２９ｃｍ／ａ。在沉积柱１２ｃｍ以上，由于人为影响，其沉积速率没有规律，估计约有３０－４０年的历史。在１２ｃｍ以下，＾２１０Ｐｂｅｘ随深度的变化明显地表现出规律性，以０．２９ｃｍ／ａ的速率计算，从１２ｃｍ到４０ｃｍ这一段大约有９０年的沉积历史。
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| 关 键 词： | 沉积速率 沉积物 沉积柱 滇池 昆明 |
| 收稿时间： | 1993/12/24 0:00:00 |
| 修稿时间： | 1994/3/29 0:00:00 |
DETERMINATIONS OF SEDIMENTATION RATES IN KUNMING'S DIANCHI LAKE |
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| Yu Yinting,Li Peiquan,Wu Run,Meng Wei,Liu Yusheng and Zou Lan.DETERMINATIONS OF SEDIMENTATION RATES IN KUNMING''S DIANCHI LAKE[J].Oceanologia Et Limnologia Sinica,1996,27(1):41-45. |
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| Authors: | Yu Yinting Li Peiquan Wu Run Meng Wei Liu Yusheng and Zou Lan |
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| Institution: | Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071;Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071;Department of Chemistry, Qingdao University, Qingdao 266071;Chinese Research Academy of Enviromental Science, Beijing 100012;Chinese Research Academy of Enviromental Science, Beijing 100012;Chinese Research Academy of Enviromental Science, Beijing 100012 |
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| Abstract: | The sedimentation rates of two sediment cores (Caohai and Waihai)in Kunming's Dianchi Lake determined by 210Pb dating in 1989 are 0. 29 cm/aand 0.28 cm/a respectively, and not regular above 12 cm at the two cores due toanthropengenic influence. The sedimentation rates were calculated based on the210pb radioactivity's very regular variation under 12 cm of the cores. Thesedimentary history was estimated to be about 90 years from 12 cm to 40 cm ofthe cores based on the sedimentary rate of 0.29 cm/a. |
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| Keywords: | Sedimentation rates ~(210)Pb dating method Tracer Decay Sediment core |
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