News

Eastmain Resources Drilling Continues to Intersect High-Grade Gold

January 4, 2017

Toronto, Ontario, January 4, 2017 - Eastmain Resources Inc. (“Eastmain” or the “Company”- TSX:ER) is pleased to announce additional assay results from its ongoing, 63,300 m drill program at the Clearwater Project, which includes the Eau Claire deposit, in James Bay, Quebec (see FIGURES 1-4).

These results are from 18 holes (5,285 m) of drilling for a total of 50 holes (17,516 m) to date, from three drill rigs. A fourth rig is now commissioned to accelerate the program. A summary of significant assay results and drilling data is presented in Tables 1, 2 and 3 below.

Highlights include:

  • Eau Claire infill drilling highlights:
    • ER16-608        - 67.7 g/t Au over 2.4 m (vertical depth – 216 m)

and 6.17 g/t Au over 5.3 m

  • ER16-617        - 15.8 g/t Au over 3.5 m (vertical depth – 171 m)

including 66.6 g/t Au over 0.8 m

  • ER16-620        - 6.74 g/t Au over 6.6 m (vertical depth – 118 m)

including 31.3 g/t over 1.0 m

  • Snake Lake drilling highlights:
    • Two types of gold mineralization identified
    • ER16-604        - 11.3 g/t Au over 1.2 m (vertical depth – 32.0 m)
    • ER16-633        - 5.78 g/t over 2.0 m (vertical depth – 22.0 m)

Claude Lemasson, Eastmain President and CEO commented, “Drilling continues to return excellent results from our open pit and shallow underground definition program on the Eau Claire deposit. The infill drilling results are confirming our expectations within the current resource while tightening the drill spacing to enhance vein continuity. A fourth drill is now arriving onsite and we remain on track to deliver an updated mineral resource estimate in 2Q2017.”

DRILLING RESULTS - EAU CLAIRE

Infill drilling reported at the Eau Claire deposit in this news release includes 11 drill holes (3,780 m) to a maximum vertical depth of 270 m. A total of 34 drill holes (10,905 m) are now complete. Drilling to date is successfully developing vein continuity within the mineral resource and improving the known grade thickness within the eastern 450 West zone. (See Figures 1,3,4) Mineralization remains open at depth and to the east.

Drilling continues to intersect mineralization within a potential open pit and shallow underground mining envelope. The current program is tightening the nominal drill spacing to approximately 25 m, in preparation for the upcoming mineral resource estimate update which will provide the foundation for a Preliminary Economic Assessment scheduled for completion in late 2017. See press releases dated October 24, 2016 and December 1, 2016 for previous drilling results.

DRILLING RESULTS - SNAKE LAKE

The second set of drilling results from the Snake Lake target includes 7 exploration drill holes (1,505 m) for a total of 16 holes (3,608 m) now complete at the Snake Lake Target. Drilling is testing a shallow 700 m long by 200 m wide corridor of gold mineralization located 1.8 km east of the Eau Claire Deposit along the Clearwater Deformation Zone. A gold mineralized sulphide rich zone of altered basalt flows and interlayered tuffaceous rocks has been identified in the central portion of the corridor. Quartz-tourmaline gold mineralization similar to the Eau Claire deposit is also identified in the corridor, related locally to shearing. Eastmain will be reviewing these results with a view to further testing of both types of mineralization. (See Figure 2)

GOLD MINERALIZATION - EAU CLAIRE

Gold mineralization at the Eau Claire gold deposit is generally located within structurally-controlled, high-grade en-echelon quartz-tourmaline veins and adjacent altered rocks. The vein system is predominantly hosted within a thick sequence of massive and pillowed mafic volcanic flows, interbedded with narrow intervals of volcaniclastic sedimentary rocks. Both flows and sediments have been intruded by multiple phases of felsic and porphyry dykes. Host rocks have been folded and deformed (sheared) through several deformation events. The gold bearing veins may occur as thin fracture fill with tourmaline and develop along an easterly strike and a southerly dip (450W zone) into thick quartz-tourmaline veins with zoned tourmaline+/-actinolite+/-biotite+/-carbonate alteration halos which can measure up to several metres in thickness.

GOLD MINERALIZATION - SNAKE LAKE

Gold mineralization at the Snake Lake occurrence is similar to the Eau Claire deposit. Quartz tourmaline veins are hosted within a thick sequence of basalt flows, tuffs and interbedded metasedimentary rocks which have been intruded by felsic dykes. As at Eau Claire, the entire sequence has been heavily deformed and sheared resulting in development of a deformation zone with strong and extensive foliation and local shearing. Significant zones of sulphide mineralization of up to 15% (pyrite, pyrrhotite, +/- arsenopyrite +/- chalcopyrite) are also reporting gold mineralization within the deformation zone.

Table 1:  Eau Claire: Summary of Drilling Results

Type

Drill Hole

From

To

Interval

Gold Assay

Vertical Depth(3)

Interpreted Zone

 
 

 

 

m

m

m (1)

g/t Au(2)

m

 

 

Infill

ER16-597

197.0

197.7

0.7

7.47

171.0

450W

 

238.9

240.0

1.1

3.56

207.0

 

262.0

267.0

5.0

5.06

229.0

 

Incl. 263.0

264.5

1.5

11.1

   

272.3

276.5

4.2

2.73

237.0

 

Incl. 274.5

275.0

0.5

16.5

   

300.0

300.6

0.6

21.8

259.0

 

Infill

ER16-608

190.6

193.6

3.0

6.36

164.0

450W

 

Incl. 192.1

192.6

0.5

26.4

   

197.1

197.6

0.5

2.04

169.0

 

223.1

224.2

1.1

9.12

190.0

 

231.2

236.5

5.3

6.17

199.0

 

Incl. 231.2

231.7

0.5

15.7

   

Incl. 233.0

233.5

0.5

20.9

   

243.6

246.2

2.6

6.31

208.0

 

Incl. 245.6

246.2

0.6

15.9

   

252.8

255.2

2.4

67.7

216.0

 

Incl. 252.8

254.7

1.9

85.1

   

264.4

265.1

0.7

27.0

225.0

 

270.8

273.1

2.3

3.90

231.0

 

Infill

ER16-612

92.0

94.4

2.4

7.58

80.0

450W

 

Incl. 92.0

93.0

1.0

16.6

   

197.8

198.3

0.5

5.40

170.0

 

205.2

205.8

0.6

4.84

177.0

 

209.5

210.0

0.5

15.7

180.0

 

243.5

244.2

0.7

9.84

210.0

 

249.0

249.5

0.5

7.62

215.0

 

259.0

260.0

1.0

27.2

223.0

 

265.0

265.5

0.5

14.7

226.0

 

Infill

ER16-617

112.9

117.0

4.1

1.12

97.0

450W

 

202.1

205.6

3.5

15.8

171.0

 

Incl. 204.8

205.6

0.8

66.6

   

211.2

211.7

0.5

8.90

178.0

 

223.2

224.2

1.0

8.50

189.0

 

260.8

261.8

1.0

2.70

220.0

 

Infill

ER16-619

83.5

84.0

0.5

3.97

70.0

450W

 

183.7

184.2

0.5

16.3

153.0

 

192.2

193.5

1.3

2.54

160.0

 

263.5

264.0

0.5

28.5

219.0

 

Infill

ER16-620

127.0

128.0

1.0

2.40

103.0

450W

 

229.2

235.8

6.6

6.74

188.0

 

Incl. 229.2

230.2

1.0

31.3

   

Incl. 234.8

235.8

1.0

10.0

   

Infill

ER16-624

87.0

87.5

0.5

3.34

78.0

450W

 

102.8

103.4

0.6

3.58

92.0

 

114.0

116.5

2.5

1.91

103.0

 

247.0

247.5

0.5

4.46

219.0

 

257.2

257.9

0.7

25.0

229.0

 

294.3

294.9

0.6

16.0

261.0

 

Infill

ER16-625

200.0

201.0

1.0

4.11

162.0

450W

 

260.9

262.9

2.0

4.43

211.0

 

Incl. 261.4

261.9

0.5

11.0

   

291.7

305.0

13.3

2.17

239.0

 

Incl. 291.7

294.8

3.1

4.32

   

304.0

305.0

1.0

7.07

244.0

 

Infill

ER16-628

215.5

216.2

0.7

3.51

166.0

450W

 

Infill

ER16-631

259.0

259.5

0.5

17.7

213.0

450W

 

263.6

264.2

0.6

2.91

217.0

 

275.1

275.8

0.7

4.48

227.0

 

284.6

285.7

1.1

3.74

234.0

 

289.7

290.6

0.9

2.39

239.0

 

322.8

323.3

0.5

3.38

266.0

 

Infill

ER16-641

NSV

 

 

 

 

450W

 

 

Table 2: Snake Lake: Summary of Drilling Results

Drill Hole

From

To

Interval

Gold Assay

Vertical Depth(3)

Interpreted Zone

 
 
 

m

m

m (1)

g/t Au(2)

m

   

ER16-603

NSV

           

ER16-604

43.85

45.0

1.15

11.3

32.0

Altered Feldspar porphyry w/ quartz-tourmaline veining

 

ER16-618

297.1

299.3

2.20

1.91

196.0

Volcanic tuff w/ up to 15% sulphide

 

ER16-623

NSV

           

ER16-627

NSV

           

ER16-633

29.7

31.7

2.00

5.78

22.0

Mafic volcanic w/ 5-10% sulphide

 

33.9

34.5

0.60

4.69

25.0

Mafic volcanic w/ tourmaline quartz veining+5% sulphide

 

ER16-637

47.8

48.3

0.50

6.01

33.0

Metasedimentary rock w/ tourmaline quartz veining+20% sulphide + V.G.

 

53.2

55.2

2.00

3.26

37.0

Metasedimentary rock w/ tourmaline quartz veining+5% sulphide

 

Incl. 53.7

54.2

0.5

8.14

   
  1. Intervals are presented in core length; true width will vary depending on the intersection angle of the hole with the targeted zone.  Holes are generally planned to intersect vein structures as close perpendicular as possible and true widths are estimated to be 75%-85% of downhole widths.
  2. For known mineralized zones, intervals are based on geological observations and limited compositing of veins.  Assays presented are not capped.  Intercepts occur within geological confines of major zones but have not been correlated to individual vein domains at this time.
  3. Vertical depth is measured from the surface to the mid-point of the reported interval.

Table 3: Hole Location Information

Target

Drill Hole

Azimuth

Inclin.

UTM Coordinates

Total Length

Elevation

Zone 18

 

Number

Deg.

Deg.

Easting

Northing

(m)

 

450

ER16-631

355

-55

444,567

5,785,013

417

284

450

ER16-628

355

-50

444,593

5,785,019

201

287

450

ER16-625

355

-57

444,667

5,785,023

375

292

450

ER16-641

355

-56

444,714

5,785,101

390

285

450

ER16-620

360

-54

444,736

5,785,055

351

288

450

ER16-597

355

-60

444,744

5,785,005

348

288

450

ER16-608

355

-59

444,845

5,785,004

300

291

450

ER16-612

355

-60

444,873

5,785,011

369

293

450

ER16-617

355

-57

444,897

5,785,008

318

291

450

ER16-624

355

-63

444,924

5,784,940

360

275

450

ER16-619

355

-56

444,968

5,785,026

351

282

SL

ER16-627

355

-45

446,335

5,784,950

249

280

SL

ER16-623

355

-45

446,525

5,784,975

201

285

SL

ER16-637

355

-45

446,547

5,785,053

296

280

SL

ER16-633

355

-45

446,600

5,785,000

285

292

SL

ER16-618

355

-45

446,921

5,784,815

177

296

SL

ER16-603

355

-45

446,950

5,785,000

177

280

SL

ER16-604

355

-45

447,044

5,785,010

120

277

                 

The design of the Eastmain Resources’ drilling programs, Quality Assurance/Quality Control and interpretation of results is under the control of Eastmain’s geological staff, including qualified persons employing a strict QA/QC program consistent with NI 43-101 and industry best practices. The Clearwater project is supervised by Eastmain’s Project Geologist, Michel Leblanc P. Geo.

Drill core is logged and split with half-core samples packaged and delivered to ALS Minerals laboratory.  Samples are dried and subsequently crushed to 70% passing a 2 mm mesh screen. A 1000 gram subsample is pulverized to a nominal 85% passing 75 micron mesh screen. The remaining crushed sample (reject) and pulverized sample (pulp) are retained for further analysis and quality control. All samples are analysed by Fire Assay with an Atomic Absorption (AA) finish using a 50 gram aliquot of pulverized material. Assays exceeding 5 g/t Au are re?assayed by Fire Assay with a Gravimetric Finish. Eastmain regularly inserts 3rd party reference control samples and blank samples in the sample stream to monitor assay performance and performs duplicate sampling at a second certified laboratory. For 2016, approximately 10% of samples submitted are part of the Company’s laboratory sample control protocols.

This press release was compiled and approved by William McGuinty, P. Geo., Eastmain’s VP Exploration and Qualified Person under National Instrument 43?101.

About Eastmain Resources Inc. (TSX:ER)

Eastmain is a Canadian exploration company with 100% interest in the Eau Claire and Eastmain Mine gold deposits, both of which are located within the James Bay District of Quebec.  Clearwater, host of the Eau Claire deposit, is the Company’s core asset with access to superior infrastructure in a favourable mining jurisdiction.  Eastmain also holds a pipeline of exploration projects in this new Canadian mining district, including being a partner in the Éléonore South Joint Venture.

For more information:

Claude Lemasson, President and CEO

+1 647-347-3765

lemasson@eastmain.com

 

Alison Dwoskin, Manager Investor Relations

+1 647-347-3735

dwoskin@eastmain.com

 

Forward- Looking Statements – Certain information set forth in this news release may contain forward-looking statements that involve substantial known and unknown risks and uncertainties. Forward-looking statements consist of statements that are not purely historical, including statements regarding beliefs, plans, expectations or timing of future plans, and include, but not limited to, statements with respect to the potential success of the Company’s future exploration and development strategies. These forward-looking statements are subject to numerous risks and uncertainties, certain of which are beyond the control of Eastmain, including, but not limited to the impact of general economic conditions, industry conditions, dependence upon regulatory approvals, the availability of financing, ‎timely completion of proposed studies and technical reports, and risks associated with the exploration, development and mining industry generally such as economic factors as they affect exploration, future commodity prices, changes in interest rates, safety and security, political, social or economic developments, environmental risks, insurance risks, capital expenditures, operating or technical difficulties in connection with development activities, personnel relations, the speculative nature of gold exploration and development, including the risks of diminishing quantities of grades of Mineral Resources, contests over property title, and changes in project parameters as plans continue to be refined. Readers are cautioned that the assumptions used in the preparation of such information, although considered reasonable at the time of preparation, may prove to be imprecise and, as such, undue reliance should not be placed on forward-looking statements. The Company assumes no obligation to update such information, except as may be required by law.