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Conference Proceedings

The AusIMM Proceedings 1964

Conference Proceedings

The AusIMM Proceedings 1964

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Ore Penetration Into Calc Schist on the Kalgoorlie Goldfield

Development on the North Kalgurli mine has established a major penetration of ore into calc schist. This is controlled by a system of east-dipping strike faults. Previously, most calc schist ore bodies were regarded as being confined to the quartz dolerite greenstonecak schist contact environment.INTRODUCTIONOne of the most interesting and economically important developments which has taken place in the Kalgoorlie Field over the past 20 years is the proved penetration of ore into calc schist on the North Kalgurli Mine. This is quite extensive, both laterally and in depth, and has occasioned some modification of geological thought in the search for additional ore sources.Ore has been mined in calc schist almost since the first major gold discoveries were made and the principal features of the various types of deposit are well covered in the literature of the field. However, occurrences in calc schist have not been characterised by the same degree of continuity or frequency as the innumerable lode formations in the more favourable quartz dolerite, and there has been a tendency to regard them as isolated and discontinuous ore bearing structures, occurring only under very special conditions.It is not intended to describe the whole range of calc schist ore occurrences but only major controlling structures, whose penetration therein has been definitely established and in which an appreciable amount of ore has been and is still being found. It is considered that similar structures may present a major objective for future exploratory work in other parts of the field.
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  • Ore Penetration Into Calc Schist on the Kalgoorlie Goldfield
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  • Published: 1963
  • PDF Size: 0.77 Mb.
  • Unique ID: P_PROC1964_1041

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