Partners Orezone Resources (ORZ-M) and Geomaque Explorations (GEO-T) have made a gold discovery while drilling their Intiedougou property in southwestern Burkina Faso.
The property covers 500 sq. km and lies within the eastern border of the Hounde Birimian greenstone belt. The reverse-circulation program was designed to test several large-scale surface geochemical anomalies identified by the government of Burkina Faso, where gold values range from 0.005 to 5 grams per tonne.
The discovery hole — collared on a soil (laterite) sample that yielded 1.9 grams gold per ton — intersected 1.82 grams over its full 26-metre length, including a 2-metre section of 3.27 grams and another 2-metre section of 4.85 grams.
For the most part, laterized/saprolitized granite, which intrudes into the andesite country rock, was encountered in the hole. Gold values are reported to occur dominantly in altered (saprolitized) granite. The last two metres of the hole were in weathered and fractured andesite, which assayed 2.1 grams gold; hence the zone is open at depth.
The partners say the style of mineralization encountered is not known. As little quartz vein material was encountered, the gold is believed to be fracture-controlled or disseminated in granite and andesite. A follow-up survey is required to assess the overall size of the discovery.
Orezone and Geomaque believe the project has potential for a bulk-tonnage, saprolite-hosted disseminated gold deposit. More exploration is planned, including geochemical soil sampling, a ground magnetic survey and more drilling.
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