Skip to main navigation Skip to search Skip to main content

Spatial and temporal controls on the distribution of indium in xenothermal vein deposFits: The Huari Huari district, Potosí, Bolivia

  • Lisard Torró
  • , Joan Carles Melgarejo
  • , Laura Gemmrich
  • , Diva Mollinedo
  • , Malena Cazorla
  • , à lvaro Martínez
  • , Núria Pujol-Solà
  • , Júlia Farré-De-Pablo
  • , Antoni Camprubí
  • , David Artiaga
  • , Belén Torres
  • , Pura Alfonso
  • , Osvaldo Arce
  • Universitat de Barcelona
  • Universidad Mayor de San Andres Bolivia
  • Université de Genève
  • Universidad Nacional Autónoma de México
  • Universitat Politècnica de Catalunya
  • Colegio de Geólogos de Bolivia
  • Eloro Resources Ltd

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

The Huari Huari deposit, Potosí Department in SW Bolivia, hosts polymetallic stratiform and vein mineralization of Miocene age with significant concentrations of the critical metal indium (In). Vein mineralization records document early crystallization of quartz and cassiterite followed by prominent associations of sulfides and sulfosalts. The earliest sulfide was arsenopyrite, followed by pyrrhotite, and progressively giving way to pyrite as the main iron sulfide, whereas C-u-Ag-Pb sulfosalts constitute late hypogene associations. Sphalerite is the chief ore mineral, and its crystallization is extended during most of the mineralization lifespan as evidenced by its initial cocrystallization with pyrrhotine, then with pyrite, and finally with Ag-Pb sulfosalts. The composition of sphalerite varies from early to late generations with a continuous decrease in FeS that attests to a decrease in temperature, which is constrained to vary from ~450 to
Original languageSpanish
JournalMinerals
Volume9
StatePublished - 1 May 2019

Cite this