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Browsing by Author "Villaseca, Carlos"
Now showing items 21-25 of 25
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Petrología y geoquímica de las tonalitas de Villarejo de Montalbán (Toledo)
(Sociedad Geológica de España, 2014)The tonalites of Villarejo de Montalbán are biotite-rich rocks showing felsic segregates with abundant titanite. Whole-rock geochemical and isotopic data ((87Sr/86Sr)300 = 0.7084-0.7089; εNd = -4.79, -4.80) suggest that ... -
Petrología y geoquímica del plutón aplopegmatítico de Peña Madrid (Sierra de Guadarrama, S.C.E.)
(Sociedad Geológica de España, 1994)The Peña Madrid aplo-pegmatitic pluton is a very fractionated l-type granite with typically MgO, Ti02, Ba, Sr, Nb and XREE low contents. They intrude as a sheet-like body in the Las Navas del Marqués batholith developing ... -
Rutilos ricos en Zr incluidos en granates de xenolitos granulíticos de la corteza inferior del Sistema Central Español: implicaciones geodinámicas
(2008)Two petrographic types of rutile are observed in the peraluminous felsic meta-igneous granulites, the most common type of the lower crustal xenolith suite of the Spanish Central System (SCS). Rutile-1 (Rt-1) corresponds ... -
Sr-Nd isotopic heterogeneities in high-grade metamorphic conditions: an example from the anatectic complex of Toledo (Spain)
(Sociedad Geológica de España, 1994)Preliminary data on the study of Sr-Nd isotopes in metapelitic, restite-rich granitoids and anatectic leucogranites from the Anatectic Complex of Toledo (Centro-lberian Hercynian zone), reveal the absence of isotopic ... -
Transformación de andalucita a sillimanita en granitos peralumínicos del batolito de los Montes de Toledo: implicaciones petrogenéticas
(2008)The Montes de Toledo Batholith comprises several felsic peraluminous granitic plutons characterized by the presence of two Al2SiO5 polymorphous: andalusite and sillimanite (as fibrolitic variety). Textural features indicate ...
