Helium isotopic ratios in fluid inclusions from fluorite-rich Mississippi Valley - Type district of Asturias, northern Spain

Sanchez, V., Stuart, F. , Martin-Crespo, T., Vindel, E., Corbella, M. and Cardellach, E. (2010) Helium isotopic ratios in fluid inclusions from fluorite-rich Mississippi Valley - Type district of Asturias, northern Spain. Geochemical Journal, 44, e1-e4.

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Publisher's URL: http://www.terrapub.co.jp/journals/GJ/abstract/4401/440100e1.html

Abstract

Helium isotopes have been measured in fluorite and sulphides from fluorite-rich Mississippi Valley-type (MVT) deposits from Asturias, Spain, in order to assess the involvement of mantle and crust-derived volatiles in the genesis of the deposits. The 3He/4He of the ore fluids are ≤0.1 Ra ruling out a contribution of mantle-derived magmatic helium in the inclusion fluids. Data support a crustal source for the volatiles and is consistent with the existing basinal model for the genesis of the Asturias MVT mineralization by mixing of sedimentary brines with infiltrating superficial fluids.

Item Type:Articles
Keywords:fluorite; noble gases; helium isotopes; fluid inclusions; Asturias; MTV deposits
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Stuart, Professor Finlay
Authors: Sanchez, V., Stuart, F., Martin-Crespo, T., Vindel, E., Corbella, M., and Cardellach, E.
Subjects:G Geography. Anthropology. Recreation > GE Environmental Sciences
College/School:College of Science and Engineering > Scottish Universities Environmental Research Centre
Journal Name:Geochemical Journal
Publisher:Terrapub
ISSN:0016-7002
Published Online:04 February 2010
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