RT Journal Article
T1 Helium isotopic ratios in fluid inclusions from fluorite-rich Mississippi Valley-Type district of Asturias, northern Spain
A1 Sánchez Perez-Cejuela, Virginia/I
A1 Stuart, Finlay M.
A1 Martín-Crespo, Tomás
A1 Vindel, Elena
A1 Corbella, Mercè
A1 Cardellach, Esteve
AB Helium isotopes have been measured in fluorite and sulphides from fluorite-rich Mississippi Valley-type (MVT) depositsfrom Asturias, Spain, in order to assess the involvement of mantle and crust-derived volatiles in the genesis of thedeposits. The 3He/4He of the ore fluids are ≤0.1 Ra ruling out a contribution of mantle-derived magmatic helium in theinclusion fluids. Data support a crustal source for the volatiles and is consistent with the existing basinal model for thegenesis of the Asturias MVT mineralization by mixing of sedimentary brines with infiltrating superficial fluids.
PB The Geochemical Society of Japan
SN 0016-7002
YR 2010
FD 2010
LK https://hdl.handle.net/20.500.14352/43809
UL https://hdl.handle.net/20.500.14352/43809
LA eng
DS Docta Complutense
RD 29 abr 2024