Renaissance Minerals runs ruler over Rhyolite Ridge
THE DRILL SERGEANT: Renaissance Minerals (ASX: RNS) recently defined a zone of surface gold anomalism at the Rhyolite Ridge prospect, located 12 kilometres from the company’s 1.2 million ounce Okvau gold deposit in Cambodia.
The Rhyolite Ridge prospect is situated on the western margin of a much broader 10 square kilometre anomaly known as Area 6.
Although gold anomalism occurs throughout Area 6, Renaissance considers it appears to be most extensive and continuous to the west and north-west and in particular at the Rhyolite Ridge prospect.
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A coherent and continuous regolith anomaly at Rhyolite Ridge extends over an area of approximately 1,500 metres long and 200 metres wide and trends north-west.
Mapping of artisanal workings, coupled with analysis of the gradient array (IP) chargeability data suggests northwest striking faults are key controls to the regolith anomaly at Rhyolite Ridge.
The Rhyolite Ridge prospect is hosted by a gently south-dipping package of locally metamorphosed sandstones and siltstones.
Aeromagnetic data shows an apparent large circular feature at Area 6, which Renaissance has interpreted to be a major buried diorite-granitoid pluton.
The northern part of the prospect is intruded by an east-west trending swarm of quartz porphyritic rhyolite dikes.
Renaissance is of the opinion the Rhyolite Ridge prospect, and other prospects within Area 6, form part of a much larger mineralising intrusion related hydrothermal system.
Exploration Renaissance has to date at Area 6 has included regolith geochemical sampling, acquisition of gradient array IP and aeromagnetic data, geological mapping of regolith sampling lines and examination of artisanal workings.
The company completed a reconnaissance reverse circulation drilling program in March/April 2013 at an area of recent artisanal mining activity located in south-eastern portion of Area 6.
Renaissance has a drilling program planned for the Rhyolite Ridge prospect, which is scheduled to commence at the end of the wet season (expected late October/early November).