| DETERMINATION OF SEDIMENTARY RATE IN ESTUARY AND COAST BY ~(228)Th TECHNIQUE |
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| 作者姓名： | 康兴伦 顾德隆 张经 朱校斌 施伟 康建海 秦晓光 |
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| 作者单位： | KANG Xing lun，Teh Lung Ku，ZHANG Jing，ZHU Xiao binSHI Wei，KANG Jian hai，QIN Xiao guang (Institute of Oceanology，Chinese Academy of Sciences，Qingdao 266071，China |
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| 基金项目： | ContributionNo.4 1 5 5fromtheInstituteofOceanology，ChineseAcademyofSciences.
Project 4 95 76 2 99supportedbyNSFC . |
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| 摘 要： | ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅＨｕａｎｇｈｅＲｉｖｅｒｗｅｌｌｋｎｏｗｎｗｏｒｌｄｗｉｄｅｆｏｒｉｔｓｈｉｇｈｓｅｄｉｍｅｎｔｄｉｓｃｈａｒｇｅｉｓＣｈｉｎａ’ｓｓｅｃｏｎｄｌａｒｇｅｓｔｒｉｖｅｒ,ｗｈｏｓｅｒｕｎｏｆｆｉｓｍａｉｎｌｙｓｕｐｐｌｉｅｄｂｙｐｒｅｃｉｐｉｔａｔｉｏｎｏｖｅｒｔｈｅｕｐｐｅｒｒｅａｃｈｅｓ.Ｈｏｗｅｖｅｒ,ｔｈｅｍａｔｅｒｉａｌｆｒｏｍｓｏｉｌｅｒｏｓｉｏｎｉｎｔｈｅＬｏｅｓｓＰｌａｔｅａｕｉｎｔｈｅｍｉｄｄｌｅｒｅａｃｈｅｓｉｓａｍａｊｏｒｃｏｎｔｒｉｂｕｔｏｒｔ…
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DETERMINATION OF SEDIMENTARY RATE IN ESTUARY AND COAST BY ~(228)Th TECHNIQUE |
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| KANG Xing lun,Teh Lung Ku,ZHANG Jing,ZHU Xiao binSHI Wei,KANG Jian hai,QIN Xiao guang.DETERMINATION OF SEDIMENTARY RATE IN ESTUARY AND COAST BY ~(228)Th TECHNIQUE[J].Chinese Journal of Oceanology and Limnology,2001(4). |
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| Authors: | KANG Xing lun Teh Lung Ku ZHANG Jing ZHU Xiao binSHI Wei KANG Jian hai QIN Xiao guang |
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| Abstract: | Analysis of 232 Th, 230 Th , and 228 Th in sediments showed that there was an excess of 228 Th over that supported by the parents 232 Th or 228 Ra in sediments in many regions. This excess 228 Th with a half life of 1.91 years can be used for dating purpose over a time period of the order of a decade, so average sedimentary rates in the Yalujiang River Estuary, and in the Huanghe River Estuary and its adjacent Laizhou Bay can be obtained from decreases in the excess 228 Th activity as a function of depth in sediment. |
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| Keywords: | activity excess sedimentary rate estuary Laizhou Bay |
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