RT Journal Article T1 Geocronologia Rb-Sr de los leucogranitos del complejo plutonico de Burguìllos del Cerro (Badajoz) T1 Rb-Sr geochronology ofthe leucogranites from Burguìllos del Cerro (Badajoz) A1 Bachiller, N. A1 Galindo, Carmen A1 Darbyshire, D. P. A1 Casquet Martín, César AB A Rb-Sr whole-rock array corresponding to an age of circa 330M. a. has been obtained for the slightly to moderately peraluminous leucogranites of the Burguillos del Cerro Massif. The samples were collected from several different leucogranite bodies and the data demostrate that the Sr-isotope composition was not homogeneous at the time of intrusion. It reveals the absence of isotopic homogenity of the original magmas. However two samples from the same body yield a tie line age of 330±9 M.a. i.e. tower Carboniferous. Furthermore, Rb-Sr isotopic evidence suggests that the alterations of the albititic type (a/bite + quartz), that are found within these granites, probably took place soon after the crystallization of the magmas. Fluid inclusion evidence supports this interpretation PB Sociedad Geológica de España YR 1996 FD 1996 LK http://hdl.handle.net/10272/11060 UL http://hdl.handle.net/10272/11060 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 31 may 2026