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Aplicaciones geotermobarométricas de los contenidos en elementos trazas de minerales granulíticos: Zr en rutilo y HREE en granate de los xenolitos félsicos de la corteza inferior del Sistema Central Español

Villaseca González, Carlos and Orejana García, David (2006) Aplicaciones geotermobarométricas de los contenidos en elementos trazas de minerales granulíticos: Zr en rutilo y HREE en granate de los xenolitos félsicos de la corteza inferior del Sistema Central Español. Geogaceta, 40 . pp. 99-102. ISSN 0213-683X

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Abstract

Geothermobarometric estimations based on the trace element concentration of minerals from lower crustal
peraluminous felsic granulite xenoliths from the Spanish Central System (SCS) have been performed. Zr in
rutile thermometry (Zack et al., 2004) gives a main range of 970 to 1100 ºC whereas HREE in garnet
barometry (Bea et al., 1997) yields a pressure range of 7.2 to 9.3 kbar. These new thermobarometric data
overlap previous P-T estimates based on conventional metamorphic phase equilibria. Nevertheless, the
slightly higher temperature range obtained with rutile thermometry force to future revision of granulite
mineral equilibria of the SCS lower crustal xenoliths.


Item Type:Article
Uncontrolled Keywords:Granulite xenoliths, Trace-element mineral chemistry, Geothermobarometry, Hercynian Belt
Subjects:Sciences > Geology > Petrology
ID Code:12384
Deposited On:09 Mar 2011 13:19
Last Modified:06 Feb 2014 09:23

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