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210Pb法在测定沉积速率中的应用
康兴伦1, 袁 毅1, 李培泉1, 纪正训2, 林炳兴2, 吴 辉2, 刘书田3
1.中国科学院海洋研究所;2.广东省测试分析研究所;3.中国科学院原子能研究所
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THE DETERMINATION OF SEDIMENTATION RATE BY 210Pb METHOD
Abstract:
The sedimentation rates at East-South part of Jiaozhou Bay and off the Belt of Dingzi Bay was determined with 210Po self-precipitation a spectrum method and 210Po self-precipitation a count method. Three layers are found in the sediment determined, the surface mixing layer, about 0-10 cm, with irregular activity distribution; the middle active decay layer with regular activity; the active background region with uniform activity. The sedimentation rate at East-South part of Jiaozhou Bay is 2.2 mm/year and the sedimentation rate off the delt of Dingzi Bay is 1.8mm/year.
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