Water in Earth's lower mantle

被引：154

作者：

Murakami, M ^{[1
]}

Hirose, K

Yurimoto, H

Nakashima, S

Takafuji, N

机构：

[1] Tokyo Inst Technol, Dept Earth & Planetary Sci, Meguro Ku, Tokyo 1528551, Japan

[2] Tokyo Inst Technol, Interact Res Ctr Sci, Meguro Ku, Tokyo 1528551, Japan

来源：

SCIENCE | 2002年 / 295卷 / 5561期

关键词：

D O I：

10.1126/science.1065998

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Secondary ion mass spectrometry measurements show that Earth's representative lower mantle minerals synthesized in a natural peridotitic composition can dissolve considerable amounts of hydrogen. Both MgSiO3-rich perovskite and magnesiowustite contain about 0.2 weight percent (wt%) H2O, and CaSiO3-rich perovskite contains about 0.4 wt% H2O. The OH absorption bands in Mg-perovskite and magnesiowustite were also confirmed with the use of infrared microspectroscopic measurements. Earth's lower mantle may store about five times more H2O than the oceans.

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页码：1885 / 1887

页数：3

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