大西洋洋中脊TAG热液区中块状硫化物的Os同位素研究

曾志刚; 翟世奎; 杜安道

大西洋洋中脊TAG热液区中块状硫化物的Os同位素研究

1 中国科学院海洋研究所,山东青岛,266071;
2 青岛海洋大学,山东青岛,266003;
3 中国地质科学院,北京,100037

基金项目: 国家大洋重大专项课题(批准号:DY105-01-03-1)和国家自然科学基金项目(批准号:40176020)资助

详细信息

作者简介:
曾志刚,男,1968年出生,研究员,博士,海洋地球化学

中图分类号: P736.4;P597

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Os Isotopic Compositions of Seafloor Massive Sulfide from the TAG Hydrothermal Field in the Mid-Atlantic Ridge

1 Institute of Oceanology,Chinese Academy of Sciences,Qingdao Shandong 266071;
2 College of Marine Geosciences,Ocean University of Qingdao,Qingdao Shandong,266003

摘要

摘要: 新测得TAG热液区中5件海底块状硫化物样品的锇含量及其同位素组成,187Os/186Os比值在2.305～7.879之间,均值为5.986,介于现代海水和上部洋壳岩石的锇同位素组成之间,表明该区海底块状硫化物中锇是海水和上部洋壳来源锇混合的产物.在海底热液循环过程中,海水的混入对该区热液流体的Os浓度及其同位素组成产生了明显的影响。
- Os同位素 /
- 海底块状硫化物 /
- TAG热液区
Abstract: New data on osmiumisotopic compositions of four seafloor massive sulfide samples from the TAG hydrothermal field has been got,the 187Os/186Os ratios of massive sulfide samples vary from2.305 to 7.879,with a mean of 5.986,these ratios are bet ween that of modern seawater and upper oceanic crust,and this range of Os isotopic compositions is likely the result of mixing of seawater with upper oceanic crust,maybe about 56 % of osmium in the massive sulfides is from the seawater,and 44 % is fromt he upper oceanic crust. The mixing of seawater with hydrothermal fluid have an obvious effect on the Os concentration and isotope composition of massive sulfi de during the seafloor hydrothermal activity.
- Os isotope /
- seafloor massive sulfide /
- TAG hydrothermal field

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参考文献(21)

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大西洋洋中脊TAG热液区中块状硫化物的Os同位素研究

作者简介:
曾志刚,男,1968年出生,研究员,博士,海洋地球化学

计量

Os Isotopic Compositions of Seafloor Massive Sulfide from the TAG Hydrothermal Field in the Mid-Atlantic Ridge

计量

目录

大西洋洋中脊TAG热液区中块状硫化物的Os同位素研究

1 中国科学院海洋研究所,山东青岛,266071;

2 青岛海洋大学,山东青岛,266003;

3 中国地质科学院,北京,100037

作者简介:
曾志刚,男,1968年出生,研究员,博士,海洋地球化学

English Abstract

Os Isotopic Compositions of Seafloor Massive Sulfide from the TAG Hydrothermal Field in the Mid-Atlantic Ridge

1 Institute of Oceanology,Chinese Academy of Sciences,Qingdao Shandong 266071;

2 College of Marine Geosciences,Ocean University of Qingdao,Qingdao Shandong,266003

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大西洋洋中脊TAG热液区中块状硫化物的Os同位素研究

作者简介: 曾志刚,男,1968年出生,研究员,博士,海洋地球化学

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Os Isotopic Compositions of Seafloor Massive Sulfide from the TAG Hydrothermal Field in the Mid-Atlantic Ridge

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出版历程

目录

大西洋洋中脊TAG热液区中块状硫化物的Os同位素研究

1 中国科学院海洋研究所,山东青岛,266071; 2 青岛海洋大学,山东青岛,266003; 3 中国地质科学院,北京,100037

作者简介: 曾志刚,男,1968年出生,研究员,博士,海洋地球化学

English Abstract

Os Isotopic Compositions of Seafloor Massive Sulfide from the TAG Hydrothermal Field in the Mid-Atlantic Ridge

1 Institute of Oceanology,Chinese Academy of Sciences,Qingdao Shandong 266071; 2 College of Marine Geosciences,Ocean University of Qingdao,Qingdao Shandong,266003

全文HTML

目录

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期刊在线

联系我们

作者简介:
曾志刚,男,1968年出生,研究员,博士,海洋地球化学

1 中国科学院海洋研究所,山东青岛,266071;

2 青岛海洋大学,山东青岛,266003;

3 中国地质科学院,北京,100037

作者简介:
曾志刚,男,1968年出生,研究员,博士,海洋地球化学

1 Institute of Oceanology,Chinese Academy of Sciences,Qingdao Shandong 266071;

2 College of Marine Geosciences,Ocean University of Qingdao,Qingdao Shandong,266003