INVESTIGADORES
COIRA Beatriz Lidia Luisa
congresos y reuniones científicas
Título:
Evolution and geochemistry of the Neogene Los Frailes Ignimbrite Complex on the Bolivian Altiplano Plateau.
Autor/es:
KATO, J., MALHBURG KAY, S., COIRA, B., JICHA, B., HARRIS, CH., CAFFE, P.J., JIMÉNEZ, N.
Lugar:
Córdoba
Reunión:
Congreso; XIX Congreso Geológico Argentino; 2014
Institución organizadora:
AGA
Resumen:
The Los Frailes Ignimbrite Complex is located in the retroarc of the Andean Central Volcanic Zone (CVZ) and is the most easterly of the large Altiplano volcanic and ignimbrite complexes. Despite its prominance, large volume (2000 km3) and the mineralization in its satellite units, the majority of the Los Frailes Complex has been poorly studied with few age determinations particuarly for the youngerLos Frailes ignimbrites. Geochemical and isotopic analyses of 25 samples from the Los Frailes Complex are combined with previous analyses (Schneider, 1985; Luedke et al., 1997; Jimenez et al., 1997; Keller, 2010), to reconstruct a regional magmatic and geochemical record for approximately the last 25 million years.
