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Pumpellyite and coexisting minerals in metapelites and veins from the Federico Units in the Internal Zone of the Rif, Spain

SYSNO ASEP	0340581
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Pumpellyite and coexisting minerals in metapelites and veins from the Federico Units in the Internal Zone of the Rif, Spain
Author(s)	Ruiz Cruz, M. D. (ES) Sanz de Galdeano, C. (ES) Alvarez-Valero, A. (ES) Novák, Jiří Karel (GLU-S)_{RID, SAI}
Source Title	Canadian Mineralogist. - : Mineralogical Association of Canada - ISSN 0008-4476 Roč. 48, č. 1 (2010), s. 183-203
Number of pages	21 s.
Publication form	WWW - WWW
Language	eng - English
Country	CA - Canada
Keywords	Betic-Rif Cordillera ; Alpine metamorphism ; Federico units ; metamorphism (Marocco/Spain)
Subject RIV	DB - Geology ; Mineralogy
CEZ	AV0Z30130516 - GLU-S (2005-2011)
UT WOS	000276033600017
EID SCOPUS	77951729710
DOI	10.3749/canmin.48.1.183
Annotation	The discovery of unusual pumpellyite-bearing assemblages in Permo-Triassic phyllites and synfolian veins from the Beni Mezala I unit is important, because it allows the comparison of the P-T conditions deduced from present parageneses. Pumpellyite is considered sensitive indicator of the metamorphic grade. The Federico units (from northern Rif belt) described here are well exposed near Ceuta (Spain enclave), where they are tectonically overlain by the Ghomáride terrane. The chemical data clearly indicate the presence of two populations of pumpellyite: a/ Fe-rich pumpellyite from actinolite-bearing assemblage, in equilibrium with Fe-rich epidote, and b/ pumpellyite richer in Al from actinolite-free veinlets in phyllite. The composition of the first population is typical of the low-grade pumpellyite described in the zeolite and prehnite-pumpellyite facies. This assemblage in pumpellyite-bearing rocks usually indicate pressures of ca 2 kbar and temperatures of ca 250 °C.
Workplace	Institute of Geology
Contact	Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272
Year of Publishing	2011

Number of the records: 1