Niogold Mining Corp. has initiated a metallurgical testing program on the Marban gold deposit on Niogold's 100-per-cent-owned Marban block property, that will include bottle-roll tests for a potential carbon-leaching circuit, as well as column-leach tests, to evaluate potential for an inexpensive in situ heap leach operation. All results are expected to be available before the end of third quarter 2015. Six gold-mineralized samples of about 100 kilograms each, ranging in average grade from 0.36 gram per tonne to 2.03 g/t gold, were sent to SGS Canada Inc. for 60-day column-leach tests.
Additionally, a series of 50 samples, ranging in grade from 0.3 to 3.0 g/t Au, will be sent to SGS for bottle-roll cyanidation tests by month-end. All samples are composed of gold-mineralized material hosted by sheared mafic to ultramafic volcanic units within the Marban deposit. Finally, due to significant cost savings realized on the current 40,000-metre Marban infill drilling program (see news release dated Jan. 16, 2015, outlining results of the first 15 holes), the program has been increased to 50,000 metres that will allow better definition along a 25-by-25-metre drilling pattern within the modelled open-pit shell. This will result in a more reliable and potentially increased measured and indicated resource of the deposit in an updated resources estimate scheduled to be released in fourth quarter 2015.
Technical information, quality assurance/quality control and qualified person
Drill program design and monitoring, core logging, and sample preparation are being executed at Niogold's facilities in Val d'Or under the supervision of Yan Ducharme, MSc, PGeo (OGQ), Niogold's vice-president of exploration, a qualified person as defined by National Instrument 43-101. QA/QC program utilized is consistent with NI 43-101 and industry best practice standards. This news release was prepared by Mr. Ducharme.