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An ultra-high-pressure metamorphic condition and isothermal decompression path obtained from a garnet-pyroxenite in the Horní Bory granulite of the Bohemian Massif

SYSNO ASEP	0329539
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	An ultra-high-pressure metamorphic condition and isothermal decompression path obtained from a garnet-pyroxenite in the Horní Bory granulite of the Bohemian Massif
Title	Ultra-vysokotlaké metamorfní podmínky granátického pyroxenitu z granulitu v Horních Borech
Author(s)	Naemura, K. (JP) Hisashima, H. (JP) Hirajima, T. (JP) Svojtka, Martin (GLU-S)_{SAI, RID, ORCID}
Source Title	Journal of Mineralogical and Petrological Sciences. - : Japan Association of Mineralogical Sciences - ISSN 1345-6296 Roč. 104, č. 3 (2009), s. 168-175
Number of pages	8 s.
Publication form	www - www
Language	eng - English
Country	JP - Japan
Keywords	ultra-high-pressure metamorphism ; P-T path ; garnet pyroxenite
Subject RIV	DB - Geology ; Mineralogy
R&D Projects	IAA3013006 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
CEZ	AV0Z30130516 - GLU-S (2005-2011)
UT WOS	000268375400006
EID SCOPUS	79251643081
DOI	10.2465/jmps.081022i
Annotation	An ultrahigh-pressure metamorphic condition (140 km) at ca. 900 °C is identified from a garnet-pyroxenite, containing primary supersilicic clinopyroxene, as a part of mafic-ultramafic lenses enclosed in the Gföhl granulite at Horní Bory quarry of the Bohemian Massif, Czech Republic. Petrological data indicated that the garnet-pyroxenite has isothermally (ca. 900 °C) exhumed from upper mantle (140 km) to the lower crust (50 km), and the supersilicic clinopyroxene was decomposed to sodic augite and quartz during the exhumation. This ultra-high-pressure metamorphic evidence is the first to be derived from the mafic rock directly enclosed within the Horní Bory granulite in the Moldanubian Zone of the Bohemian Massif.
Workplace	Institute of Geology
Contact	Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272
Year of Publishing	2010

Number of the records: 1