An Overview of International Geological Correlation Programme Project 502: Global Comparison of Volcanic-Hosted Massive Sulfide (VMS) Districts—Controls on Distribution and Timing of VMS Deposits

Mining Rocks! CIM Toronto 2005
Rodney L. Allen, Jan M. Peter, Fernando Tornos, M. Namik Çagatay,
Abstract Despite extensive research, the features that control the location
of VMS deposits are not well understood. VMS deposits are
known to be located within specific stratigraphic intervals in
volcanically active, extensional marine basins. A new 5-year
multi-disciplinary international project aims to study some of
the World’s important VMS districts and examine
interrelationships between mineralization, magmatism, and
extensional tectonics in order to define the key controls on the
distribution and timing of mineralization and develop new
exploration criteria. For each selected VMS district, the approach
includes: 1) documenting the main styles of mineralization; 2)
defining the number of ore horizon(s) and their character and
stratigraphic position(s); 3) determining the lateral extent of the
mineralized horizon(s) and any variability with distance from
ore; 4) placing these favourable stratigraphic intervals into the
overall geodynamic evolution; and 5) applying resulting findings
to less well-known VMS districts. The project promotes scientific
exchange among developed and less-developed countries, and
aims to provide new knowledge that will promote mineral
exploration, investment and employment. The project involves
about 20 nations and over 100 senior scientists, has recently
had its first meeting in Turkey, and to date has commenced
work in Sweden and Spain.
Keywords: Base-Metals, VMS, Geology, Tectonics, Metallogeny, Economic geology, Volcanogenic Massive Sulfides, Geochemistry, volcanology, Worldwide
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