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

• SÁNCHEZ VIRGINIA

  Dept. Cristalografía y Mineralogía, Facultad de Ciencias Geológicas, Universidad Complutense

• STUART FINLAY M.

  Isotope Geosciences Unit, SUERC

• MARTÍN-CRESPO TOMÁS

  ESCET, E. Departamental II, Universidad Rey Juan Carlos

• VINDEL ELENA

  Dept. Cristalografía y Mineralogía, Facultad de Ciencias Geológicas, Universidad Complutense

• CORBELLA MERCÉ

  Dept. Geología, Facultat de Ciences, Universitat Autònoma

• CARDELLACH ESTEVE

  Dept. Geología, Facultat de Ciences, Universitat Autònoma

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 R_a 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.

Journal

• GEOCHEMICAL JOURNAL

  GEOCHEMICAL JOURNAL 44 (1), e1-e4, 2010

  GEOCHEMICAL SOCIETY OF JAPAN

Keywords

• fluorite
• noble gases
• helium isotopes
• fluid inclusions
• Asturias
• MVT deposits

Details

• CRID: 1390282679529608832
• NII Article ID: 10027720258
• NII Book ID: AA00654975
• DOI: 10.2343/geochemj.1.0077
• COI: 1:CAS:528:DC%2BC3cXltFWlt7o%3D
• ISSN: 18805973
• ISSN: 00167002
• NDL BIB ID: 10936415
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10936415
• Web Site: https://www.jstage.jst.go.jp/article/geochemj/44/1/44_1.0077/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed