Počet záznamů: 1

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

SYSNO ASEP	0340581
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Pumpellyite and coexisting minerals in metapelites and veins from the Federico Units in the Internal Zone of the Rif, Spain
Tvůrce(i)	Ruiz Cruz, M. D. (ES) Sanz de Galdeano, C. (ES) Alvarez-Valero, A. (ES) Novák, Jiří Karel (GLU-S)_{RID, SAI}
Zdroj.dok.	Canadian Mineralogist. - : Mineralogical Association of Canada - ISSN 0008-4476 Roč. 48, č. 1 (2010), s. 183-203
Poč.str.	21 s.
Forma vydání	WWW - WWW
Jazyk dok.	eng - angličtina
Země vyd.	CA - Kanada
Klíč. slova	Betic-Rif Cordillera ; Alpine metamorphism ; Federico units ; metamorphism (Marocco/Spain)
Vědní obor RIV	DB - Geologie a mineralogie
CEZ	AV0Z30130516 - GLU-S (2005-2011)
UT WOS	000276033600017
EID SCOPUS	77951729710
DOI	10.3749/canmin.48.1.183
Anotace	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.
Pracoviště	Geologický ústav
Kontakt	Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272
Rok sběru	2011

Počet záznamů: 1