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Geoscience ›› 2012, Vol. 26 ›› Issue (5): 996-1007.

• Geochemistry • Previous Articles     Next Articles

Types of Geochemical Lithofacies and Their Applications in Basin

 FANG  Wei-Xuan-1,2   

  1. 1 Sino Tech Mineral Exploration Joint stock Company,Beijing100012, China;2 School of Earth Sciences and Resources, China University of Geosciences,Beijing100083, China
  • Received:2012-06-12 Revised:2012-07-10 Online:2012-10-19 Published:2012-10-23

Abstract:

Types of geochemical lithofacies may be classified into oxidizing reducing lithofacies, acidityalkalinity lithofacies,salinity lithofacies,temperature lithofacies, pressure lithofacies, chemical potential lithofacies, heterochemical potential lithofacies, and heterochronous heterochemical potential lithofacies, based on geochemical dynamics of fluids and series of rock associations. In the basin analysis, geochemical lithofacies may be applied to study on rock compositions in the sedimentary basin and evolution history of basin. It can help us to restore and rebuild types and compositions of fluid field, distribution areas and migration rules of fluid field, mechanism and dynamics of fluid migrations at the large scale, and relationships of hydrothermal fluid superimposing during the deformation of basin in order to predication for mineral resource at the depth.

Key words: geochemical lithofacies, oxidizingreducing lithofacies, superimposing lithofacies, sedimentary basin, fluid migration