Mr. Thomas Yingling reports
BERKWOOD REPORTS HIGH GRADE GRAPHITE ASSAYS WITH LARGE TRUE THICKNESS INTERSECTIONS UP TO 40.3 M ON ZONE 1 AT LAC GUERET SOUTH GRAPHITE PROJECT
Berkwood Resources Ltd. has released assay results from the drill program on the
zone 1
geophysical prospect at the company's 100-per-cent-owned Lac Gueret South project. Thirteen holes were drilled in the first phase drill program with every hole intersecting visible graphite. Sections of the drill core were sent for assay and the company is pleased to confirm high-grade graphite with average grades in the range of 14.39 to 25.52 per cent graphitic carbon (Cgr) and true thicknesses ranging 22.1 to 40.3 metres.
Edward Lyons, PGeo
(British Columbia, Quebec, Newfoundland), who has worked extensively on the Lac Gueret property, now owned by Mason, stated, "The analyses show that the thick unit on Section 3100E as well as shorter intervals showed a similar range of grades that occurs at Mason Graphite's Lac Gueret deposit nearby."
The
zone 1
target is a conductive and magnetic system with a 2.2-kilometre east-west strike length and 0.6 km width. It shows two parallel zones which may be a large-scale fold. The zone 1 drill program intersected graphite in each of the 13 holes drilled on the west end of the zone, and with which initial metallurgical assessment is in progress.
Certificates of analyses No. YVR1710850 and No. YVR1717850A contain analytical results for all samples taken in the 13 HQ diamond drill holes on zone 1. Nine sites contained the 13 drill holes oriented north with inclinations varying from minus 45 degrees to minus 75 degrees on a cut grid. The sites were spaced about 70 to 100 m apart on north-south sections which were spaced about 100 m apart. Significant results are described in the associated table.
SIGNIFICANT DRILL INTERSECTIONS
DDH ID From To Sample length Cg avg True thickness**
(m) (m) (m) (%) (m)
BK1-01-17 40.23 45.00 4.77 28.61 4.48
BK1-01-17 99.48 137.77 38.29 14.68 36.0
includes 101.98 110.19 9.83 29.17 9.2
BK1-02-17 43.05 46.38 3.33 15.16 9.75
BK1-02-17 60.85 80.45 19.60 24.01 15.5
includes 64.38 74.40 10.02 32.95 6.4
BK1-03-17 20.79 47.69 26.90 24.40 26.9
includes 24.28 26.94 2.66 31.08 2.6
includes 34.69 44.06 9.37 35.34 9.3
BK1-03-17 93.40 99.38 5.98 13.11 5.98
BK1-04-17 26.68 79.24 52.56 21.01 40.3
includes 26.68 54.55 27.87 28.38 21.4
includes 69.19 71.71 2.52 31.72 1.9
DDH ID From To Sample length Cg avg True thickness**
(m) (m) (m) (%) (m)
BK1-05-17 31.4 43.86 12.46 20.72 8.8
includes 36.21 39.41 3.2 33.69 1.4
BK1-06-17 16.39 28.34 11.95 25.52 22.1
BK1-07-17 112.75 118.61 5.95 10.83 4.4
BK1-08-17 139.42 160.63 17.17 20.04 16.4
includes 150.37 155.83 5.46 31.19 4.5
BK1-08-17 169.83 177.04 7.11 28.02 6.2
BK1-09-17 114.25 142.34 21.33 12.27 18.5
BK1-10-17 133.98 148.75 16.27 9.10 14.1
BK1-11-17 19.84 24.17 4.33 11.39 3.8
BK1-12-17 30.62 33.93 3.31 11.23 2.7
BK1-13-17 38.44 46.59 8.15 19.20 6.9
BK1-13-17 99.64 105.57 5.93 18.84 4.9
BK1-13-17 117.60 120.13 2.53 18.52 2.0
True thickness was estimated based on foliation to core axis and the initial
interpretation.
The drill holes were completed on western three sections 3100E through 3300E. Other narrower intervals with graphite greater than 10 per cent Cgr occur, particularly on sections 3200E and 3300E, but are not listed in the associated table.
The initial interpretation of Section 3100E geology suggests an asymmetrically dipping and moderately plunging antiform to the west that includes a relatively thick band of graphite schist with average grades in the range of 14.39 to 25.52 per cent Cgr and true thicknesses ranging 22.1 to 40.3 m in the lower parts of BK1-01-17 and BK1-04-17 and the upper parts of BK1-03-17 and BK1-05-17. There are thinner units both above and below this horizon. How these relate to the sections 3200E and 3300E to the east is under review. It is possible that the thicker graphite schist horizon may subcrop between 3100E and 3200E; there is sparse outcrop in the heavily forested area. The possibility of testing the specific horizon by electromagnetic charging the horizon in a borehole and mapping the traces of the unit on surface can constrain interpretations. This mise a la masse EM (electromagnetic) technique successfully demonstrated the two main Quinto/Mason's Lac Gueret showings were connected. The area west of Section 3100E has west-dipping topography that potentially could keep the horizon closer to the present surface.
Tom Yingling, president and chief executive officer,
stated:
"I am pleased we have succeeded in demonstrating significant graphite in large true thicknesses early in our initial exploration program. Having had success in every one of the 13 holes drilled to date on zone 1 is very exciting. Drilling on zone 2, reported on Nov. 21, 2017, will assist the company in prioritizing the most compelling prospect for potential development. Our fall drill program is fully financed, and the field project is managed by the same team that discovered Berkwood's zone 1 discovery and the Mason Graphite deposit. I am thrilled with our shareholder and financing support, and with our capital structure -- we still only have approximately 32.5 million shares outstanding."
The company has extended road access and trails to develop the initial group of targets at zone 1, and drill pads have been prepared for the further planned drill program to test the targeted PhiSpy conductive anomalies.
Lac Gueret South zone 1
Lac Gueret South is located in Cote Nord, Quebec, a three-hour drive from Baie-Comeau in an area of very good infrastructure. The project lies directly south of Mason Graphite's advanced Lac Gueret project. Mason is developing one of the largest medium- to high-grade graphite deposits in the world.
Success in this drill program confirms that a significant component of the distinct electromagnetic conductors that occur over a two-kilometre length and 50 metres to 600 metres in width as defined by airborne EM geophysics (see the Berkwood news release dated Feb. 10, 2015) includes graphite.
Sampling and analytical procedures
Sample intervals were marked based on the presence of graphite-bearing lithology and significant visual changes in graphite appearance and range from 0.88 to 3.2 m in length. Most were between 1.1 to 2.2 m. Bracket samples to a maximum of 3.0 m length of unmineralized or very low-grade (less than 3 per cent Cgr) mineralization were taken to join groups of narrower graphite intersections for continuous data for future calculations. The samples were cut lengthwise with rock saw perpendicular to the foliation. One-half was placed in plastic bags with numbered tags and arranged in sequence of collection. The other half was retained in core trays on-site.
Field quality assurance/quality control materials consisted of granitic gneiss rock with nil graphite and sulphide as blank material and quarter-cut drill core for duplicate samples. No standards or certified reference material (CRM) were used in the field. Visual inspection of blank material analyses showed the expected nil values for blank rock, which indicated no contamination from prior samples. Duplicate samples showed the close but not exact correlation with the original half-core samples as is typical of layered material. The laboratory includes five QA/QC materials in each batch of 35 client samples.
Sampling of sawn drill core was completed, weighed and packed in rice bags under supervision by the qualified person, and was shipped from Baie-Comeau, Que., by truck on pallets to MS Analytical Laboratories in Langley, B.C.
Standard sample preparation included crushing and pulverizing with silica sand wash prior to each sample at both stages on all samples to reduce contamination. The pulps of all samples were analyzed by MS Analytical's SPM-140 method for graphitic carbon by ashing the sample followed by an acid digestion to eliminate carbonate and SPM-210 for total sulphur by oxidation in an LECO furnace. SPM-140 analyses carbon as graphite (Cgr) to a maximum grade of 50 per cent Cgr, while total sulphur has no upper interference level. ICP-MS (inductively coupled plasma mass spectrometry) analyses were run on two longer series of graphite samples from the thickest intervals to test for potential deleterious elements; nothing exceptional was found. Rejects and pulps are presently stored at the MS Analytical warehouse for future metallurgical tests.
Discussion of results
The analyses show that the thick unit on Section 3100E as well as shorter intervals showed a similar range of grades that occurs at Mason Graphite's Lac Gueret deposit nearby. The cut-off grade used to define the intervals was the same 5-per-cent Cgr level used for Mason's Lac Gueret resource and reserve estimations with a denser data set, published on SEDAR. One difference is that the highest grades found in one area at Lac Gueret, just over 60 per cent Cgr, were not matched here. Another is that the population of analyses around 5 per cent Cgr constitutes a small proportion of samples; the data are generally significantly higher or lower. Three levels of graphite concentration were codified in the field based on local observations as well as known data from Lac Gueret: graphite-bearing schist less than 5 per cent (to 3 per cent) Cgr as low grade; graphite schist with grades between 5 per cent and 25 per cent Cgr as medium grade; and high-grade (HiG) material where the sample grades exceeded 25 per cent Cgr and makes visual estimation impossible in core.
Comparison between South Lac Gueret and Lac Gueret deposits
The comparison between Berkwood's zone 1 and Lac Gueret, now owned by Mason Graphite, is that in the early stages of exploration by Quinto Mining, abundant outcrop on burned and logged areas was identified on the initial site visit by the QP. Minor stripping and clearing of the shallow overburden exposed extensive graphite zones with good quality mapping and intense surface sampling prior to drilling. The works by Quinto and Mason are documented in various technical reports posted on SEDAR between 2001 and 2015. Berkwood's property, which is at the initial stages of exploration, is forested making the development of equivalent exposures difficult. Thus, it faces more work to expose the same showings.
New property acquisition
Berkwood is pleased to announce that it has expanded its Lac Gueret extensions project (northern blocks). Owing to the success of its phase 1 drill program and the success of phase 1 drill program assays the company decided to immediately acquire additional claims.
Berkwood has acquired a further 53 claims in its Lac Gueret Extensions project (northern block) region, to extend the previously held 19,884 hectares covered by 368 claims to a new total of 22,739.46 hectares covered by 421 claims. Berkwood is acquiring the Turkey Lake property by payment to 1131348 B.C. Ltd. of 630,000 common shares and $15,000. Berkwood will own 100 per cent of the property with no royalties attached. The transaction remains subject to TSX Venture Exchange approval.
Mr. Lyons is a qualified person under the definition of Canadian National Instrument 43-101, and has approved the technical information in this news release. He has worked extensively on the Lac Gueret property, now owned by Mason, and neighbouring graphite properties since 2000.
About Berkwood Resources Ltd.
Berkwood is engaged in exploration for the commodities that enable the modern revolution in essential technologies. These technologies are dependent upon the ethical mining and supply of naturally occurring elements and minerals that enhance the performance of energy storage systems and permit the development and miniaturization of new electronics and structural components for the new suite of innovative tools. The company is led by a team with collectively over 100 years experience and whose members have been involved with the discovery of several producing mines.
We seek Safe Harbor.
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