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dc.contributor.author刘广山zh_CN
dc.contributor.author徐茂泉zh_CN
dc.contributor.author黄奕普;zh_CN
dc.date.accessioned2011-04-26T08:01:32Z
dc.date.available2011-04-26T08:01:32Z
dc.date.issued2003-12zh_CN
dc.identifier.citation地球学报, Acta Geosicientia Sinica,2003 24(6):618-621zh_CN
dc.identifier.issn1006-3021zh_CN
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/1336
dc.description.abstract用HPGeγ谱方法测定了厦门火烧屿裸露岩石天然放射性核素40 K、2 2 8Ra、2 2 8Th、2 3 8U、2 2 6Ra和2 10 Pb含量 ,对其铀系不平衡关系进行了讨论 ,发现钍系核素2 2 8Ra和2 2 8Th基本上是平衡的 ,而大部分样品2 2 6Ra相对于2 3 8U、2 10 Pb相对于2 2 6Ra亏损。由此推论 ,水体作用下岸边岩石中2 2 6Ra直接进入水体 ,可以是海水中2 2 6Ra的一个来源 ;岸边岩石中2 2 2 Rn逸出后 ,衰变为2 10 Pb再进入水体 ,可以是海水中2 10 Pb的一个来源 【英文摘要】 The natural radionuclides in naked rocks from Huoshaoyu island of Xiamen were measured by means of HPGe (spectroscopy,and the 40K, 228Ra, 228Th, 238U, 226Ra and 210Pb were detected. Based on a discussion on the disequilibrium of uranium series, it is found that in most samples 226Ra relative to 238U and 210Pb relative to 226Ra are deficient. It can thus be concluded that the migration of 226Ra from the coastal rocks into seawater by water leaching is a ...zh_CN
dc.description.sponsorship国家自然科学基金项目 ( 4 0 0 760 2 4)资助zh_CN
dc.language.isozhzh_CN
dc.publisher地质科学院院报;地球学报-中国地质科学院院报zh_CN
dc.subject谱分析zh_CN
dc.subject裸露岩石zh_CN
dc.subject铀系不平衡zh_CN
dc.subject火烧屿;zh_CN
dc.subjectspectrum analysiszh_CN
dc.subjectnaked rockzh_CN
dc.subjecturanium series disequlibriumzh_CN
dc.subjectHuoshaoyu island;zh_CN
dc.title厦门火烧屿裸露岩石的铀放射系不平衡zh_CN
dc.title.alternativeUranium Series Disequilibrium in Naked Rocks from Huoshaoyu Island, Xiamenzh_CN
dc.typeArticlezh_CN


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