The metapelitic gamet-biotite-muscovite-aluminosilicate-quartz (gbmaq) geobarometer
文献类型：期刊论文
| 作者 | Wu, Chun-Ming; Zhao, Guochun C. |
| 刊名 | Lithos
 |
| 出版日期 | 2007-09-01 |
| 卷号 | 97期号:3-4页码:365-372 |
| 关键词 | Application Calibration Gbmaq Gcobarometer Metapelite |
| ISSN号 | 0024-4937 |
| DOI | 10.1016/j.lithos.2007.01.003 |
| 通讯作者 | Wu, chun-ming(wucm@gucas.ac.cn) |
| 英文摘要 | In this contribution we have empirically calibrated the gamet-biotite-muscovite-aluminosilicate-quartz (gbmaq) barometer using low- to medium-high-pressure, mid-grade metapelites. application of the barometer suggests that the gbmaq and gasp barometers show quite similar pressure estimates. furthemore, metapelites within thermal contact aureole or very limited geographic area show no meaningful pressure diversity determined by the gbmaq and gasp barometers which is the geological reality. the random error of the gbmaq barometer is expected to be around +/- 0.8 kbar, and this barometer shows no systematic bias with respect to either pressure, or temperature, or al-vi in muscovite, or fe in biotite, or fe in garnet. the gbmaq barometer is thermodynamically consistent with the garnet-biotite geothermometer because they share the same activity models of both garnet and biotite. this barometer is especially useful for assemblages with ca-poor garnet or ca-poor plagioclase or plagioclase-absent metapelites. application of this barometer beyond the calibration ranges, i.e., p-t range and chemical ranges of the minerals, is not encouraged. (c) 2007 elsevier b.v. all rights reserved. |
| WOS关键词 | PHASE-EQUILIBRIUM EXPERIMENTS ; HIGH-GRADE METAPELITES ; CENTRAL MAINE ; GARNET ; ROCKS ; GEOTHERMOMETER ; RECALIBRATION ; METAMORPHISM ; ASSEMBLAGES ; ANDALUSITE |
| WOS研究方向 | Geochemistry & Geophysics ; Mineralogy |
| WOS类目 | Geochemistry & Geophysics ; Mineralogy |
| 语种 | 英语 |
| WOS记录号 | WOS:000249490700007 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2381677 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Wu, Chun-Ming |
| 作者单位 | 1.Chinese Acad Sci, Coll Earth Sci, Grad Univ, Lab Computat Geodynam, Beijing 100049, Peoples R China 2.Univ Hong Kong, Dept Earth Sci, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Chun-Ming,Zhao, Guochun C.. The metapelitic gamet-biotite-muscovite-aluminosilicate-quartz (gbmaq) geobarometer[J]. Lithos,2007,97(3-4):365-372. |
| APA | Wu, Chun-Ming,&Zhao, Guochun C..(2007).The metapelitic gamet-biotite-muscovite-aluminosilicate-quartz (gbmaq) geobarometer.Lithos,97(3-4),365-372. |
| MLA | Wu, Chun-Ming,et al."The metapelitic gamet-biotite-muscovite-aluminosilicate-quartz (gbmaq) geobarometer".Lithos 97.3-4(2007):365-372. |
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来源：中国科学院大学
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