Jabal Guyan is a gold deposit located in the Arabian Peninsula, southwest Kingdom of Saudi Arabia. It lays about 414 km away from Jazan Port on the Red Sea, connected to Najran by a newly paved road, and 835 km away from Jeddah. The nearest communities of significant size are Khamis Mushayt which is 190 km away, Abha to the West is 220 km away and Najran to the South-East is approximately 100km away from the project site.
Geology and Mineralisation
Jabal Guyan mineralization is orogenic type gold deposit. It is hosted within Proterozoic rocks (metamorphosed volcanic and volcanoclastic rocks with diorite, gabbro, tonalite, gneiss, granodiorite and granite intrusions). The deposit is composed of two sectors as North and South veins. Gold bearing quartz veins are associated with a pair of parallel shear zones developed within metamorphosed tuff and andesites. Gold mineralized veins pinch and swell both laterally and vertically along the length of the shears. Mineralization extends along NW-SE direction. Strike lengths of the mineralization are 1430 meters for the north vein and 900 meters for the south vein. Mineralization extend is tested for 200 meters depth from surface.
High grade quartz veins are surrounded by altered, sheared intermediate tuff having disseminated gold mineralization. Native gold occurs as minute, discrete, scattered flakes within the quartz veins or as small inclusions, most commonly in pyrite and arsenopyrite. Alteration includes chlorite, sericite, epidote and late stage carbonate veining.
Jabal Guyan orogenic gold deposit has more than 150,000 oz geological resources with Au grade of 4.69 g/t. Feasibility Studies for mining and processing are ongoing to identify the mineable and saleable reserves. The Guyan orebody is still open at depth and extension with significant ore occurrences in the nearby satellite veins.
Jabal Guyan gold deposit has significant exploration potential along strike and dip extensions. Drilling program currently continues to increase the geological resources.
Moreover, 103 quartz veins have been identified in the mining and exploration licenses and 23 of them carriy significant indicators of gold mineralization. Potential targets have been tested by geochemical prospection. Al Aqiq and Fatma prospects have significant exploration potential with the presence of historical mining activities and high-grade gold bearing core and rock chip samples.
May 2018: Variation testwork completed with confirmation of previous metal recoveries.
April 2018: Independent feasibility study began.
September 2017: Advanced Scoping Study completed with good financial indicators to go ahead.
May 2017: First set of metallurgical testwork completed with +90% overall metal recovery
October 2017: Exploration drilling program continued by AMAK.
February 2016: Exploration drilling program started by SRK Consulting (UK).
December 2015: Geophysical survey by AMAK.
1980: Exploration program conducted by ASDC.
” We completed the testing and commissioning of our mining facility , which is fully operational as of quarter 3 of 2012. The facility was officially inaugurated by His Royal Highness Prince Mishaal bin Abdullah bin Abdulaziz Al Saud, Prince of Najran on 2 October 2012 “