收稿日期: 1998-04-22
修回日期: 1998-06-18
网络出版日期: 1999-04-01
基金资助
国家自然科学基金项目“超高压变质作用与碰撞造山动力学(项目编号:49794043)和国土资源部壳幔开放重点实验室联合资助。
PROGRESS IN MANTLE GEOCHEMISTRY:ISOTOPES AND MINOR ELEMENTS
Received date: 1998-04-22
Revised date: 1998-06-18
Online published: 1999-04-01
匡少平,徐 仲 . 地幔地球化学研究进展:微量元素和同位素特征[J]. 地球科学进展, 1999 , 14(2) : 159 -163 . DOI: 10.11867/j.issn.1001-8166.1999.02.0159
The paper firstly introduces the developmentofmantle isotopic geochemistry and summarizes the achievements of applying Sr-Nd-Hf-Pb,Os,He-Ar and He isotopes to tracing rock sources and distinguishing their geneses.Recent major studies showthat the isotopic information is very important and effective to investigate mantle-derived rocks.
Then,some main methods determining mantle compositions and the significance of globally uniform ratios such as Nb/U,Y/Ho and Ce/Pb are presented.Atthe same time,it is pointed outthatthe backward of analytical technique and the nonbreakthrough of fundamental theories affect seriously the application and development of isotopes and minor elements to mantle researches.
Key words： Mantle evolution; Mantle compositions; Isotopes; Minor elements; Geochemistry.
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