On the validity of the geobarometers in mantle rocks
文献类型:期刊论文
作者 | Wu ChunMing |
刊名 | Acta petrologica sinica
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出版日期 | 2009-09-01 |
卷号 | 25期号:9页码:2089-2112 |
关键词 | Mantle rocks Geobarometer Precision Accuracy Evaluation |
ISSN号 | 1000-0569 |
通讯作者 | Wu chunming(wucm@gucas.ac.cn) |
英文摘要 | Nowadays there exist several kinds of geobarometers theoretically applicable to mantle rocks, i.e., the garnet-orthopyroxene, garnet-clinopyroxene, olivine-clinopyroxene, cr-in-spinel and two-pyroxene geobarometers. to test the precision and accuracy of these barometers, they have been applied to experimental data of phase equilibrium experiments and natural mantle xenoliths including the garnet- or spinel-bearing lherzolites and the garnet-spinel -bearing iherzolites, as well as mantle xenoliths containing graphite or diamond, collected from kimberlites or alkaline basalts. it is concluded that the present garnet-orthopyroxene barometers (nickel and green, 1985; taylor, 1998; brey et al., 2008) are relatively the most valid ones, and the garnet-clinopyroxene barometers (nimis and taylor, 2000; simakov and taylor, 2000) are also applicable. other kinds of barometers are obviously far from accurate and precise and should be much more precisely calibrated through phase equilibrium experiments. in applying the valid barometers, the two-pyroxene thermometers (brey et al., 1990; taylor, 1998) or the garnet-olivine thermometer (wu and zhao, 2007) are to be simultaneously used to derive pressures and temperatures. |
WOS关键词 | NORTH CHINA CRATON ; GARNET-CLINOPYROXENE GEOTHERMOMETRY ; SPINEL PERIDOTITE XENOLITHS ; LITHOSPHERIC MANTLE ; SYSTEM CAO-MGO-AL2O3-SIO2 ; ORTHO-PYROXENE ; ULTRAMAFIC XENOLITHS ; MINERAL CHEMISTRY ; PHASE-EQUILIBRIA ; NATURAL GARNET |
WOS研究方向 | Geology |
WOS类目 | Geology |
语种 | 英语 |
WOS记录号 | WOS:000270044500005 |
出版者 | SCIENCE PRESS |
URI标识 | http://www.irgrid.ac.cn/handle/1471x/2395755 |
专题 | 中国科学院大学 |
通讯作者 | Wu ChunMing |
作者单位 | Chinese Acad Sci, Coll Earth Sci, Grad Sch, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Wu ChunMing. On the validity of the geobarometers in mantle rocks[J]. Acta petrologica sinica,2009,25(9):2089-2112. |
APA | Wu ChunMing.(2009).On the validity of the geobarometers in mantle rocks.Acta petrologica sinica,25(9),2089-2112. |
MLA | Wu ChunMing."On the validity of the geobarometers in mantle rocks".Acta petrologica sinica 25.9(2009):2089-2112. |
入库方式: iSwitch采集
来源:中国科学院大学
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