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
Argitalpen urtea: 1994
Zenbakia: 16
Orrialdeak: 31-34
Mota: Artikulua
Beste argitalpen batzuk: Geogaceta
Laburpena
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