IRGSIntrusion Related Gold System (mining)
IRGSIndian River Genealogical Society
IRGSInstitutional Research Grants Scheme (Australia)
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Whilst the Mount Adrah Hobbs deposit is giving strong indications of developing into a significant IRGS gold deposit, it is important to recognise that the Rocky River-Uralla Project was Sovereign Gold's cornerstone asset and has considerable potential.
This extensive mineralised shear zone fault system may represent a high-level fracture fluid plumbing system developed above a potential IRGS Hobbs-style pipe.
Sovereign Gold is now a leader in exploration of IRGS in Australia and through application of its new understanding on the controls on gold mineralisation within these large systems it has identified several high priority targets for drilling planned to commence in April 2012
The mineralisation comprises sheeted veins and disseminated gold mineralisation within a felsic dyke, which confirms the potential of a large IRGS hosting several primary hard rock gold deposits.