Sr-Nd isotopic heterogeneities in high-grade metamorphic conditions:an example from the anatectic complex of Toledo (Spain).
- Barbero González, Luis C.
- Rogers, G.
- Villaseca González, Carlos
ISSN: 0213-683X
Datum der Publikation: 1994
Nummer: 16
Seiten: 31-34
Art: Artikel
Andere Publikationen in: Geogaceta
Zusammenfassung
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 homogenization as it would be expected in a high grade metamorphic area in which important volumes of anatectic leucogranites are generated. Several factors as the short-lived metamorphic climax, the highly anhydrous conditions, and the source heterogeneity seem to be crucial for isotopic homogenization to be not achieved