A report on a biotite-calcic hornblende geothermometer

	A report on a biotite-calcic hornblende geothermometer
	Wu, CM ; Pan, YS ; Wang, KY ; Zhang, J
刊名	ACTA GEOLOGICA SINICA-ENGLISH EDITION
	2002-03-01
卷号	76 期号:1 页码:126-131
关键词	biotite-calcic hornblende geothermometer calibration random error application
ISSN号	1000-9515
文献子类	Article
英文摘要	This paper presents a biotite-calcic hornblende geothermometer which was empirically calibrated based on the garnet-biotite geothermometer and the gamet-plagioclase-homblende-quartz geobarometer, in the ranges of 560-800degreesC (T) and 0.26-1.4 GPa (P) using the data of metadolerite, amphibolite, metagabbro, and metapelite collected from the literature. Biotite was treated as symmetric Fe-Mg-Al-VI-Ti quaternary solid solution, and calcic homblende was simplified as symmetric Fe-Mg binary solid solution. The resulting thermometer may rebuild the input garnet-biotite temperatures well within an uncertainty of +/-50degreesC. Errors of +/-0.2 GPa for input pressure, along with analytical errors of +/-5% for the relevant mineral compositions, may lead to a random error of +/-16degreesC for this thermometer, so that the thermometer is almost independent of pressure estimates. The thermometer may clearly discriminate different rocks of lower amphibolite, upper amphibolite and granulite facies on a high confidence level. It is assumed that there is a ferric iron content of 11.6% in biotite, and that the iron content in calcic homblende may be calculated according to the method of Dale et al. (2000). This thermometer can be used for medium- to high-grade metabasites and metapelites.
WOS关键词	GRANULITE FACIES ; PHASE-EQUILIBRIA ; NEW-HAMPSHIRE ; GARNET ; FE ; MG ; AMPHIBOLITES ; COMPLEX ; VERMONT
WOS研究方向	Geology
语种	英语
出版者	GEOLOGICAL SOC CHINA
WOS记录号	WOS:000174604400013
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/78095]
专题	中国科学院地质与地球物理研究所
通讯作者	Wu, CM
作者单位	1.Chinese Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Grad Sch, Dept Earth Sci, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Wu, CM,Pan, YS,Wang, KY,et al. A report on a biotite-calcic hornblende geothermometer[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2002,76(1):126-131.
APA	Wu, CM,Pan, YS,Wang, KY,&Zhang, J.(2002).A report on a biotite-calcic hornblende geothermometer.ACTA GEOLOGICA SINICA-ENGLISH EDITION,76(1),126-131.
MLA	Wu, CM,et al."A report on a biotite-calcic hornblende geothermometer".ACTA GEOLOGICA SINICA-ENGLISH EDITION 76.1(2002):126-131.