Projects
Rau
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Rau






The Rau Project is located 55 km northeast of Keno City in Central Yukon. The project is over 1300 sq km and is situated between the regional-scale Dawson thrust and Kathleen Lakes fault, within a Paleozoic carbonate inlier of the Selwyn Basin tectonic province. Replacement-style, gold-bearing sulphide and oxide mineralization occurs in Bouvette Formation shallow water limestone, dolomite, and calcareous siltstone of Cambrian to Devonian age. ATAC Resources Ltd. wholly owns the project, which was a grass roots discovery in 2006. Since then, it has acquired by staking over 160 km of potential strike length of favourable structure and stratigraphy, of which only a very small portion has been explored for gold.

Exploration conducted by ATAC has focused along a 15 km portion of the Bouvette Formation where it forms a local ridge system bound by the Beaver and Rackla Rivers. Carbonate strata at the southeast end of the ridge system is intruded by a small early Tertiary (62.9+0.5 Ma) granite stock. Work along the 15 km trend comprises widely spaced soil geochemical surveys, airborne VTEM surveys plus limited geological mapping and prospecting. Detailed work conducted in a 3 km by 5 km area at the southeastern end of this trend focused on the Tiger Zone and included detailed grid soil geochemical surveys and diamond drilling of 71 holes.

The Tiger Zone is a stratigraphically-controlled gold deposit that trends northwest and dips moderately northeast and is characterized by replacement of host carbonates. It is currently 650 m long, 100 to 200 m wide, and up to 96 m thick. Mineralization is contained within a 40 m to 150 m wide zone of small-scale folding and shearing, which is itself developed in and adjacent to a regionally extensive corridor of highly strained rocks. The mineralized system is defined by a series of stacked and folded limestone horizons intercalated with locally extensive mafic flows and volcaniclastic units. Most of the exploration has been directed toward the Discovery Horizon, although there is evidence for at least two additional stratabound intervals of gold mineralization.

Gold occurs in both sulphideand oxide material. Sulphide mineralization is accompanied by, and developed within, limestone which is replaced by ferruginous dolomite and iron carbonate minerals. Sulphide species consist of disseminated to banded pyrite, with subordinate arsenopyrite and pyrrhotite, and minor bismuthinite and sphalerite. Small amounts of disseminated scheelite are also present. The main sulphide minerals exhibit at least three stages of mineralization. The best intersection from sulphide-bearing mineralization averaged 4.04 g/t gold over 96.01 m from hole Rau-09-66.

Oxide mineralization is completely devoid of sulphide minerals and ranges from very competent, weakly porous limonitic mud to rubbly porous limonitic grit. The oxide appears texturally amorphous in most intersections but occasionally exhibits residual color banding that may represent relict sulphide textures. Complete oxidation extends up to 150 m from surface. The best oxide grades (e.g., hole Rau-09-19, which assayed 24.07 g/t gold across 28.04 m) and deepest oxidation occur where north-striking extensional faults intersect the regional northwest-striking structure. The nature of the contacts between the oxide and sulphide facies is poorly understood, as is the gold distribution in the mineralized horizon and within individual sulphide species. Mineralization at the Tiger Zone remains open along strike and down dip, as well as at depth across a normal fault that locally defines the southwest margin of the favourable structural corridor.

Preliminary metallurgical test results on gold-bearing oxide material are very encouraging and demonstrate that the oxide mineralization is potentially amenable to conventional cyanide extraction processes. Additional tests are underway to assess the metallurgy of sulphide material.

In addition to the work done at the Tiger Zone, ATAC identified six new surface gold zones by following up high values from grid and widely spaced reconnaissance soil sampling. The best zones are in a 500 m wide belt, which lies 2 to 5 km along strike to the northwest of the Tiger Zone, in and adjacent to the northwest-striking structural corridor. Anomalous soil geochemical values stretch intermittently for about 22 km to the northwest along the projected trace of the structural corridor, which is marked by electromagnetic conductors. Surface rock samples collected from talus or recessively weathered areas assayed between 1.0 and 18.5 g/t gold.

An aggressive $12.5 million program of mapping, geochemical sampling, and diamond drilling involving at least four drills is underway for the Tiger Zone area in 2010, as well as systematic first pass exploration of the rest of the property.

2008/2009 Significant Results

Hole #

Type

From (m)

To (m)

Interval (m)

Au (g/t)

Ag (g/t)

Horizon

 

 

 

 

 

 

 

 

Rau-08-02

Sulphide

  52.73

121.42

68.69

1.24

0.12

Discovery

Rau-08-03

Oxide

    9.14

  42.67

33.53

2.51

3.61

Discovery

 

Oxide

  51.81

  62.55

10.74

0.71

0.31

Discovery

Rau-08-04

Sulphide

101.61

170.25

68.64

1.65

0.11

Discovery

Rau-08-05

Sulphide

  71.50

100.38

28.88

2.26

0.25

Discovery

 

Sulphide

109.38

150.04

40.66

1.64

3.77

Discovery

Rau-08-06

Sulphide

    9.70

  45.70

36.00

1.57

0.18

Discovery

 

Sulphide

  54.70

  66.70

12.00

2.56

0.14

Discovery

Rau-08-07

Sulphide

136.52

142.52

  6.00

1.05

0.19

Discovery

 

Sulphide

172.87

186.87

14.00

5.20

0.27

Discovery

 

Sulphide

226.87

237.87

11.00

1.52

1.34

Discovery

Rau-08-08

Sulphide

165.94

171.94

  6.00

0.77

0.45

Discovery

 

Sulphide

192.94

198.94

  6.00

0.96

0.24

Discovery

Rau-08-10

Sulphide

  79.90

  85.90

  6.00

0.53

0.34

Upper

Rau-08-11

Sulphide

  19.67

  28.41

  8.74

2.89

0.21

Upper

 

Sulphide

124.17

130.17

  6.00

0.57

0.40

Discovery

 

Sulphide

168.91

188.27

19.36

1.05

0.21

Discovery

 

Sulphide

227.08

235.65

  8.57

0.65

0.35

Discovery

Rau-08-13

Sulphide

103.05

121.05

18.00

1.46

0.47

Upper

Rau-08-16

Oxide

    8.84

  79.25

70.41

1.98

5.73

Discovery

Rau-08-18

Sulphide

  58.72

  69.20

10.48

1.83

0.24

Upper

 

Sulphide

134.02

143.02

  9.00

0.93

0.11

Discovery

Rau-09-19

Oxide

  41.45

  85.34

43.89

15.52

2.07

Discovery

Rau-09-21

Oxide

  20.73

  45.11

24.38

0.69

5.80

Discovery

Rau-09-22

Oxide

  64.31

  71.63

  7.32

0.25

9.46

Discovery

Rau-09-23

Oxide

  60.35

  87.78

27.43

9.72

4.53

Discovery

Rau-09-24

Oxide

  75.00

  82.66

  7.66

0.76

0.48

Discovery

 

Oxide

102.41

122.83

20.42

0.94

1.53

Discovery

Rau-09-25

Oxide

    7.01

  17.68

10.67

0.45

9.34

Discovery

 

Oxide

  51.21

  75.59

24.38

1.36

5.91

Discovery

 

Oxide

  81.69

  87.78

  6.09

0.45

5.90

Discovery

 

Oxide

127.41

134.75

  7.34

0.33

1.51

Discovery

Rau-09-26

Sulphide

  34.62

  40.84

  6.22

1.11

0.13

Discovery

 

Sulphide

  69.94

  83.82

13.88

0.97

0.11

Discovery

 

Sulphide

  90.73

  98.15

  7.42

1.06

0.14

Discovery

Rau-09-27

Oxide

  16.15

  70.75

54.60

3.16

10.33

Discovery

Rau-09-28

Oxide

  88.39

107.29

18.90

1.58

1.23

Discovery

Rau-09-29

Sulphide

  89.31

  96.93

  7.62

0.79

9.49

Discovery

 

Sulphide

     109.55

117.82

  8.27

1.40

5.24

Discovery

Rau-09-31

Oxide

    7.03

  72.54

65.51

2.13

41.65

Discovery

Rau-09-33

Oxide

  55.62

102.87

47.25

1.04

3.89

Discovery

Rau-09-34

Oxide

  45.00

121.31

76.31

2.32

12.42

Discovery

Rau-09-35

Sulphide

117.43

123.48

  6.05

1.42

19.15

Discovery

Rau-09-36

Oxide

  31.60

  93.36

61.76

3.14

0.89

Discovery

 

Sulphide

  93.36

  99.37

  6.01

3.90

0.15

Discovery

Rau-09-37

Oxide

  13.11

  26.20

13.09

2.73

23.37

Discovery

 

Oxide

  40.73

  49.68

  8.95

0.34

0.81

Discovery

 

Sulphide

  69.49

  77.11

  7.62

0.91

0.49

Discovery

Rau-09-38

Oxide

  32.32

  51.51

19.19

1.44

0.84

Discovery

 

Oxide

100.92

107.66

  6.74

0.39

25.67

Discovery

 

Oxide

120.40

129.00

  8.60

0.37

2.97

Discovery

Rau-09-39

Oxide

  96.01

103.18

  7.17

1.34

0.84

Discovery

Rau-09-40

Oxide

    7.01

  22.38

15.37

1.14

1.46

Discovery

Rau-09-41

Oxide

  71.63

  96.10

24.47

19.58

10.93

Discovery

 

Oxide

113.65

124.51

10.86

0.40

0.44

Discovery

 

Oxide

143.60

153.92

10.32

0.67

1.22

Discovery

 

Oxide

166.12

172.21

  6.09

0.35

25.24

Discovery

Rau-09-42

Sulphide

  10.06

  23.00

12.94

2.27

0.12

Discovery

 

Sulphide

  40.54

  61.87

21.33

2.04

0.14

Discovery

 

Sulphide

107.59

113.69

  6.10

0.80

0.14

Discovery

Rau-09-43

Oxide

    8.95

  48.90

39.95

1.91

2.32

Discovery

Rau-09-44

Sulphide

183.59

220.37

36.78

3.71

0.31

Unknown

Rau-09-45

Sulphide

  88.24

123.44

35.20

0.91

0.15

Discovery

 

Sulphide

175.00

181.90

  6.90

0.74

0.40

Discovery

Rau-09-46

Oxide

  13.11

  72.84

59.73

5.44

0.78

Discovery

Rau-09-47

Oxide

  25.91

  32.00

  6.09

0.26

12.20

Discovery

 

Oxide

  49.83

  88.39

38.56

2.59

3.28

Discovery

Rau-09-48

Oxide

  54.25

  78.88

24.63

3.07

1.34

Discovery

Rau-09-50

Sulphide

  35.97

  42.06

  6.09

0.52

0.84

Discovery

Rau-09-51

Oxide

    3.96

  27.28

23.32

1.07

3.12

Discovery

Rau-09-53

Oxide

  51.88

101.50

49.62

2.15

5.68

Discovery

 

Oxide

122.83

131.62

  8.79

0.30

0.80

Discovery

Rau-09-54

Sulphide

  50.29

  56.39

  6.10

0.85

0.10

Upper

Rau-09-56

Oxide

  72.54

108.34

35.80

3.77

1.71

Discovery

Rau-09-57

Oxide

  51.82

  62.48

10.66

1.03

11.36

Discovery

Rau-09-59

Oxide

  14.63

  21.65

  7.02

0.64

0.49

Discovery

 

Sulphide

  21.65

  57.30

35.65

2.55

0.29

Discovery

 

Oxide

  60.40

  79.86

19.46

5.44

0.74

Discovery

 

Sulphide

  79.86

  92.95

13.09

0.68

1.08

Discovery

 

Sulphide

104.55

111.21

  6.66

0.58

2.92

Discovery

Rau-09-60

Sulphide

    6.10

  16.85

10.75

4.91

0.60

Discovery

 

Oxide

  16.85

  21.20

  4.35

5.99

1.11

Discovery

 

Sulphide

  21.20

  99.06

77.86

2.06

0.46

Discovery

Rau-09-61

Sulphide

170.43

177.60

  7.17

0.75

0.19

Unknown

 

Sulphide

317.40

340.46

23.06

3.36

0.77

Unknown

Rau-09-62

Oxide

    6.10

  36.58

30.48

3.01

3.18

Discovery

Rau-09-63

Oxide

    5.00

  13.11

  8.11

1.32

1.18

Discovery

 

Oxide

  35.97

  58.83

22.86

3.68

0.82

Discovery

Rau-09-64

Sulphide

104.97

111.55

  6.58

2.34

0.19

Upper

 

Sulphide

219.25

225.55

  6.30

1.38

0.45

Discovery

 

Sulphide

246.89

254.35

  7.46

0.51

2.62

Discovery

Rau-09-65

Oxide

  75.59

  83.21

  7.62

0.34

34.60

Discovery

 

Oxide

112.95

152.11

39.16

0.97

1.75

Discovery

Rau-09-66

Oxide

    7.01

  13.65

  6.64

11.95

0.47

Discovery

 

Sulphide

  13.65

103.02

89.37

3.45

0.25

Discovery

Rau-09-67

Oxide

    1.52

    9.14

  7.62

1.16

1.93

Discovery

 

Sulphide

    9.14

  28.96

19.82

2.16

0.95

Discovery

 

Sulphide

  38.10

  54.86

16.76

1.15

0.71

Discovery

Rau-09-68

Oxide

    7.42

  52.14

44.72

3.37

2.89

Discovery

Rau-09-69

Sulphide

    4.57

  21.34

16.77

3.18

0.16

Discovery

 

Sulphide

  39.62

  58.85

19.23

3.11

0.12

Discovery

Rau-09-70

Sulphide

  10.30

  28.96

18.66

1.63

0.11

Discovery

 

Sulphide

  35.20

  53.34

18.14

0.50

0.14

Discovery

 

Sulphide

  60.96

  67.50

  6.54

1.71

0.09

Discovery

Rau-09-71

Oxide

    6.10

  25.91

19.81

3.96

1.40

Discovery

 

Sulphide

  27.43

  33.53

  6.10

0.54

0.07

Discovery

 

Sulphide

  69.91

  77.72

  7.81

0.50

0.44

Discovery


2009 Diamond Drill Locations

Hole

Section

Easting

Northing

Elev. (m)

Azimuth

Angle

Depth (m)

Rau-08-18

10+120NW

528537

7119241

1294

230°

-60°

322.93*

Rau-09-19

10+300NW

528343

7119314

1354

228°

-60°

118.26

Rau-09-20

10+400NW

528287

7119394

1410

228°

-60°

162.61

Rau-09-21

10+035NW

528413

7119028

1238

048°

-60°

160.94

Rau-09-22

10+400NW

528287

7119395

1410

228°

-75°

210.62

Rau-09-23

10+300NW

528343

7119315

1354

228°

-75°

99.98

Rau-09-24

09+850NW

528608

7118943

1300

228°

-60°

207.27

Rau-09-25

10+300NW

528266

7119246

1342

048°

-55°

153.32

Rau-09-26

10+120NW

528488

7119205

1282

228°

-60°

292.61

Rau-09-27

10+300NW

528314

7119291

1340

228°

-60°

89.31

Rau-09-28

10+300NW

528391

7119354

1382

228°

-80°

121.92

Rau-09-29

10+300NW

528237

7119222

1350

048°

-55°

159.41

Rau-09-30

10+300NW

528212

7119200

1358

048°

-55°

222.51

Rau-09-31

10+200NW

528421

7119246

1316

228°

-60°

80.16

Rau-09-32

10+300NW

528392

7119356

1382

048°

-70°

101.19

Rau-09-33

10+200NW

528466

7119290

1335

228°

-65°

147.83

Rau-09-34

10+250NW

528379

7119275

1331

228°

-60°

121.31

Rau-09-35

10+200NW

528466

7119290

1335

228°

-90°

221.29

Rau-09-36

10+200NW

528442

7119266

1323

228°

-65°

193.55

Rau-09-37

10+200NW

528389

7119222

1302

228°

-60°

122.84

Rau-09-38

10+350NW

528313

7119355

1381

228°

-60°

138.99

Rau-09-39

10+400NW

528287

7119394

1410

048°

-75°

163.68

Rau-09-40

10+200NW

528364

7119200

1292

228°

-60°

159.41

Rau-09-41

10+350NW

528314

7119357

1381

048°

-75°

188.98

Rau-09-42

10+120NW

528440

7119160

1272

228°

-60°

141.12

Rau-09-43

10+120NW

528416

7119141

1268

228°

-60°

115.22

Rau-09-44

09+850NW

528627

7118971

1306

228°

-83°

228.04

Rau-09-45

09+895NW

528609

7118999

1295

228°

-65°

229.82

Rau-09-46

10+170NW

528438

7119228

1302

228°

-60°

148.74

Rau-09-47

09+895NW

528564

7118970

1272

228°

-70°

88.39

Rau-09-48

10+300NW

528345

7119316

1355

048°

-82°

160.94

Rau-09-49

10+500NW

528287

7119530

1501

228°

-70°

306.33

Rau-09-50

10+300NW

528296

7119275

1338

228°

-60°

67.97

Rau-09-51

10+250NW

528346

7119250

1316

228°

-60°

107.60

Rau-09-52

10+500NW

528195

7119454

1466

228°

-50°

377.96

Rau-09-53

10+250NW

528405

7119302

1346

228°

-60°

153.32

Rau-09-54

09+700NW

528730

7118858

1386

228°

-75°

376.43

Rau-09-55

10+250NW

528320

7119228

1314

228°

-60°

98.45

Rau-09-56

10+250NW

528435

7119326

1360

228°

-60°

125.88

Rau-09-57

10+350NW

528313

7119356

1381

228°

-83°

71.63

Rau-09-58

10+200NW

528339

7119178

1295

228°

-60°

74.07

Rau-09-59

09+935NW

528553

7119012

1266

228°

-60°

119.79

Rau-09-60

09+970NW

528529

7119035

1260

228°

-60°

150.88

Rau-09-61

09+780NW

528748

7118976

1381

228°

-60°

467.87

Rau-09-62

09+970NW

528487

7119000

1232

228°

-60°

54.86

Rau-09-63

09+935NW

528524

7118984

1252

228°

-60°

72.54

Rau-09-64

10+120NW

528573

7119275

1313

228°

-60°

441.97

Rau-09-65

09+895NW

528609

7118999

1295

228°

-50°

156.36

Rau-09-66

10+000NW

528524

7119072

1259

228°

-55°

153.32

Rau-09-67

10+000NW

528483

7119035

1235

228°

-90°

88.39

Rau-09-68

10+000NW

528483

7119035

1235

228°

-55°

56.39

Rau-09-69

10+035NW

528497

7119112

1245

228°

-60°

71.63

Rau-09-70

10+085NW

528466

7119138

1263

228°

-60°

114.30

Rau-09-71

10+150NW

528434

7119193

1285

228°

-60°

141.73

Rau-SC09-01

09+650NW

528876

7118900

1458

228°

-50°

306.33

Rau-SC09-02

N.A.

526754

7121630

1737

220°

-50°

94.49

Rau-SC09-03

N.A.

526754

7121630

1737

220°

-51°

149.35

Rau-SC09-04

09+450NW

528773

7118569

1318

048°

-50°

278.90



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