SRG Graphite increases resource estimate at Lola by 54%
Momentum Public Relations
Press Release: June 18 2018
SRG Graphite Inc. has provided an updated mineral resource estimate for its 100-per-cent-owned Lola graphite deposit located in the Republic of Guinea. The 2018 mineral resource estimate represents an increase of 54 per cent of in situ graphitic carbon (Cg) at a 3-per-cent cut-off grade since the publication of the maiden resource. In preparation for the next phase of development of the project, several boreholes were completed to increase measured and indicated resources from inferred resources. As such, measured and indicated resources increased from 224,118 tonnes to 676,900 tonnes of Cg content at a 3-per-cent cut-off grade, an increase of 201 per cent.
The 2018 Mineral Resource Estimate, prepared by Montreal-based Met-Chem, a division of DRA Americas Inc. (“Met-Chem/DRA”), includes a pit-constrained measured and indicated resource of 12.2 million tonnes (“Mt”) grading 5.6% Cg and an inferred resource of 2.1 Mt grading 6.1% Cg, using a cut-off grade of 3.0% Cg. Effective date of the estimate is June 14, 2018.
The 2018 Mineral Resource Estimate replaces the maiden mineral resource estimate which was reported by SRG on December 22, 2017, and subsequently included in a Technical Report completed by Met-Chem/DRA with an effective date of September 30, 2017. A NI 43-101 Technical Report will be filed on SEDAR within 45 days of this news release providing the details of this resource update. Figure 1 provides a map of the current drilling program. Completed boreholes, assay results pending and boreholes to be completed can be viewed on the map.
Resource Summary
The mineral resources are based on 395 boreholes for 12,086 meters (“m”) drilled up to April 4, 2018. Since that time, an additional 162 diamond drill holes have been completed, for approximately 5,686 additional meters for a total of 17,954 meters. Assay results for these additional holes are pending. Drilling onsite is ongoing and an additional 3,000 meters of drilling are scheduled to take place in the second half of 2018.
The updated resource is established for the oxide profile of the deposit, from surface to a depth ranging between 20 and 50 meters, with an average thickness of 32 meters. The mineralization continues at depth within the fresh rock material, but drilling is stopped once fresh rock is reached. The area for the resources covers approximately 33% of the deposit’s 3.2-square-kilometer surface area.
The estimate was prepared using a block model constrained with 3D wireframes of the principal mineralized domains. Values for graphitic carbon were interpolated using Ordinary Kriging (OK) interpolation methodologies on 10 * 10 * 2m blocks. As in the previous resource estimate, a preliminary open pit optimization algorithm was run on the estimated grade block model. Only mineralization contained within the preliminary pit shell has been included in the resource estimate.The base case mineral resource estimate is summarized in the following table at a cut-off grade of 3.0% Cg together with estimate sensitivities at 1.64% Cg and 5.0% Cg.
LOLA GRAPHITE PROJECT MINERAL RESOURCES AT A CUT-OFF GRADE OF 3.0% CG AND SENSITIVITIES AT 1.64%CG AND 5.0% CG CUT-OFF GRADES Base case mineral resources Cut-off grade Classification Tonnes Cg In situ Cg Cg % (Mt) (%) (t) 3% Measured 1.40 5.32 74,700 Indicated 10.79 5.58 602,200 Total ind. and meas. 12.20 5.55 676,900 Inferred 2.06 6.07 125,200 Sensitivities Cut-off grade Classification Tonnes Cg In situ Cg Cg % (Mt) (%) (t) 1.64% Measured 2.13 4.31 91,900 Indicated 17.00 4.39 746,400 Total ind. and meas. 19.14 4.38 838,400 Inferred 2.82 5.07 143,000 Cut-off grade Classification Tonnes Cg In situ Cg Cg % (Mt) (%) (t) 5% Measured 0.60 7.14 42,700 Indicated 5.02 7.46 374,800 Total ind. and meas. 5.62 7.43 417,500 Inferred 1.18 7.54 88,700
About Met-Chem/DRA
Met-Chem, a division of DRA Americas Inc., was originally established in 1969 as a consulting engineering company, headquartered in Montreal, and provides a wide range of technical and engineering services. Met-Chem is well recognized for its capabilities in mining, geology and mineral processing and has a talented team of engineering, technical and project management personnel with experience in North America, Latin America, Europe, West Africa and India. DRA is a multidisciplinary global engineering group that originated in South Africa and delivers mining, mineral processing, energy, water treatment and infrastructure services from concept to commissioning, as well as comprehensive operations and maintenance services for the mineral resources, water, agriculture and energy sectors. DRA has offices in Africa, Australia, Canada, China, India and the United States.
Qualified Person
Dr. Marc-Antoine Audet, P.Geo., Lead Geologist, SRG was responsible for estimating the mineral resources and has reviewed and approved the contents of this press release. Dr. Audet is a non-independent Qualified Person (“QP”) within the meaning of NI 43-101 – Standards of Disclosure for Mineral Projects of the Canadian Securities Administrators. Under subsection 5.3(1) paragraph (c), as the mineral resources have changed by less than 100% from the previous filing, an independent QP is not required for the filing of this mineral resource update.
ABOUT SRG
SRG is a Canadian-based company focused on developing the Lola graphite deposit and the Gogota nickel-cobalt deposit, both located in the Republic of Guinea, West Africa. SRG is committed to operating in a socially, environmentally and ethically responsible manner.
We seek Safe Harbor.
- Published in SRG Graphite