Nugus, M.J., and Dominy, S.C. (2003) Practical applications of geology in the grade control process at the Marvel Loch gold mine, Southern Cross, Western Australia. In: Proceedings of the 5th International Mining Geology Conference. pp. 251-260. From: 5th International Mining Geology Conference, 17-19 Nov 2003, Bendigo, Victoria.

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Abstract

The grade of ore at Marvel Loch mine is directly related to the presence or absence of shear zones and quartz-sulfide-rich hornblende(± diopside) veining within areas of plagioclase alteration. An experienced geologist can identify these features in hand specimen. Practical rules have been developed to assist this visual identification. The structural sites and styles of alteration and veining most conducive to gold mineralisation have also been determined. The work has enabled a better understanding of the geological controls on mineralisation at Marvel Loch, and has clarified geological understanding for optin1isation of grade control modeling, ore block mark-ups, and minimisation of ore loss and dilution during excavation. In addition to this, it has enabled a detailed understanding of mine scale structural controls, geometry and relative grade relationships.

Item ID:	14696
Item Type:	Conference Item (Research - E1)
Date Deposited:	07 Mar 2018 23:29
FoR Codes:	04 EARTH SCIENCES > 0403 Geology > 040307 Ore Deposit Petrology @ 100%
SEO Codes:	84 MINERAL RESOURCES (excl. Energy Resources) > 8401 Mineral Exploration > 840105 Precious (Noble) Metal Ore Exploration @ 100%
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