The influence of faulting on host-rock permeability, fluid flow and ore genesis of gold deposits: A theoretical 2D numerical model

A. Ord, A. Barnicoat, C. Zhao, J. L. Walshe, Ge Lin

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Veins, ore deposits and faults are often spatially related. We quantitatively explore the coupled faulting-deformation-fluid flow-chemical reaction process resulting in this association. Our 2D numerical models focus on faulting-related deformation, dilation and permeability development, fluid flow patterns, and fluid focusing/mixing locations. The models provide insight into the transport of fluids through low-permeability rocks with isolated, but more permeable faults. Mineral precipitation patterns resulting from chemical reactions during the coupled processes are also computed. The results are relevant to understanding the relationship of gold ore deposits to faults.

Original languageEnglish
Pages (from-to)279-284
Number of pages6
JournalJournal of Geochemical Exploration
Volume78-79
DOIs
Publication statusPublished - 1 Jan 2003
Externally publishedYes

Keywords

  • Coupled deformation-fluid flow-chemical reaction modelling
  • Faulting
  • Fluid flow
  • Mineral precipitation

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