Osiris Project
(Carlin-type gold)

Highlights

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  • Canada's first discoveries of Carlin-type gold mineralization
  • Discovered in 2010 through follow-up stream sediment sampling of highly anomalous arsenic values from the Yukon Government database
  • 2010 discovery drill hole at Osiris intersected 65.20 m of 4.65 g/t gold (OS-10-001)
  • 4 zones make up the 12 sq/km Osiris cluster: Conrad, Osiris, Sunrise and Ibis 
  • Conrad is the most advanced zone and OS-12-114 intersected 42.93 m of 18.44 g/t gold 
  • Completed 74,201 m in 231 holes within the cluster
  • Mineralization has been traced vertically over 1.2 km between the surface mineralization on the ridge-top of Osiris to the deepest hole (OS-14-230) at Conrad
  • 2017 exploration program - $10 million, ~15,000 m diamond and RAB drilling, to focus on expanding high-grade gold mineralization at Conrad, Osiris and other targets within the Osiris and Rau projects

Conrad Zone

  • 43,433 m in 108 holes
  • Most advanced zone within the Nadaleen Trend
  • The average grade of all reported Conrad Zone intersections is 4.75 g/t gold*
  • Hole OS-12-114 intersected 42.93 m of 18.44 g/t gold
  • Upper Zone strike length of 800 m - open along strike
  • Middle Zone strike length of 300 m - open along strike and at depth
  • Newly discovered Lower Zone intersected gold beneath previously known Conrad mineralization

Conrad Highlight Drill Results

HOLE FROM
(m)
TO
(m)
INTERVAL
(m)**
GOLD
(g/t)
Upper Zone OS-11-010 176.15 291.08 114.93 3.15
Upper Zone OS-12-114 66.19 109.12 42.93 18.44
Middle Zone OS-14-227 452.80 483.59 30.79 9.50
and 448.06 484.63 36.57 5.06
Lower Zone OS-14-230 624.84 667.51 42.67 3.03
incl. 630.94 637.03 6.09 13.61

**True widths for Conrad drill results are estimated to be 60% - 100% of intersected widths

Carlin-type mineralization at the Conrad Zone is contained within several structural and stratigraphic settings. In the Conrad Upper Zone, gold mineralization occurs along the stratigraphic contact between limestone and an overlying pyritic siltstone cap unit where the thickest mineralization occurs along the crest of an anticlinal fold. The Upper Zone has been continuously traced by shallow drilling over a strike length of 800 m between sections C100E and C900 E. Mineralization at the Upper Zone remains open along strike.

Mineralization at the Conrad Middle Zone is characterized by strong alteration and mineralization within multiple stacked, flat-lying bodies proximal to a laterally extensive, near vertical siltstone-limestone contact. Only 300 m of the presently known 800 m long favourable siltstone-limestone contact has been tested. Mineralization at the Middle Zone remains open along strike and at depth.

Newly discovered high-grade gold mineralization below the Middle Zone opens up an entirely new area for exploration.The 2014 Conrad Lower Zone discovery was marked by two new significant gold intervals that returned 42.67 m of 3.03 g/t gold and 21.71 m of 3.15 g/t gold beneath the Conrad Middle Zone.

2017 Exploration Plans

Diamond drilling will focus on crosscutting faults thought to be associated with high-grade gold mineralization intersected in proximity to the 350 and 650 faults where OS-10-008 returned 21.13 m of 8.03 g/t gold and OS-12-184 returned 51.82 m of 4.05 g/t gold.

* Out of 148 released Conrad intersections, the minimum intersection grade was 1.01 g/t gold and the maximum was 18.44 g/t gold. The minimum interval width of intersections was 2.20 m and the maximum was 124.96 m.

Conrad Drill Results

Osiris Zone

  • 14,220 m in 59 holes
  • Initial discovery hole of Carlin-type gold mineralization intersected 65.20 m of 4.65 g/t gold in OS-10-001
  • The average grade of all reported Osiris Zone intersections is 3.62 g/t gold*
  • Stratabound gold mineralization drilled over a 900 m strike length
  • Open along strike and at depth

Osiris Highlight Drill Results

HOLE FROM
(m)
TO
(m)
INTERVAL
(m)**
GOLD
(g/t)
OS-10-001 56.08 121.28 65.20 4.65
OS-11-031 39.62 71.63 32.01 4.25
OS-11-055 1.42 27.54 26.12 6.08

**True widths for Osiris drill results are estimated to be 60% - 100% of intersected widths

The Osiris Zone lies between the Conrad and Ibis zones, and similar to both, gold mineralization is best developed in the hinge or crest area of an anticline fold. Drilling has also outlined stratabound gold mineralization over a 900 m strike length along the east and west limbs of the fold and in the hinge of the fold. Higher grade drill intersections are located in the hinge area where Hole OS-10-001 intersected 65.20 m of 4.65 g/t gold. Strong exploration potential exists on the west limb of Osiris towards the north where only wide-spaced shallow intersections have been drilled.


2017 Exploration Plans

Diamond drilling will focus on the northern extension of Osiris along strike of OS-11-080 and OS-11-082 which intersected 19.81 m of 5.07 g/t gold and 44.20 m of 4.41 g/t gold, respectively. RAB drilling will test additional high-grade mineralized structures similar to the North Osiris Trench which returned values up to 80.40 g/t gold over 1.8 m.***

* Out of 55 released Osiris intersections, the minimum intersection grade was 1.36 g/t gold and the maximum was 8.37 g/t gold. The minimum interval width of intersections was 3.05 m and the maximum was 65.20 m.

*** See ATAC news release dated August 30, 2011 for further details.

Osiris Maps & Figures

Osiris Drill Results

Sunrise Zone

  • 4,328 m in 19 holes
  • Sunrise discovery hole OS-12-173 intersects 14.86 m of 10.54 g/t gold
  • The average grade of all reported Sunrise Zone intersections is 6.25 g/t gold*
  • 215 m strike length which remains open at depth

Sunrise Highlight Drill Results

HOLE FROM
(m)
TO
(m)
INTERVAL
(m)**
GOLD
(g/t)
OS-12-173 0.99 15.85 14.86 10.54
OS-13-201 197.59 210.31 12.72 9.49
OS-13-206 120.70 135.94 15.24 9.83

**True widths for Sunrise drill results are estimated to be 60% - 100% of intersected widths

The Sunrise Zone is located 300 m east of the Osiris anticline hinge zone. Mineralization at Sunrise occurs as sub-parallel tabular bodies that dip steeply south. Gold mineralization at the top of Sunrise discovery hole (OS-12-173) intersected intensely decalcified limestone adjacent to a steeply dipping fault. This hole was collared directly within mineralization and returned 14.86 m of 10.54 g/t gold. Drilling to the east and west of OS-12-173 in 2013 extended the strike length of mineralization to 215 m and to an open depth of 350 m from surface. Exploration potential within Sunrise exists at depth.

2017 Exploration Plans

Shallow RAB and diamond drilling at Sunrise will focus on following the mineralized corridor along strike to the west where OS-12-150 intersected 15.24 m of 2.64 g/t gold.

* Out of 17 released Osiris intersections, the minimum intersection grade was 2.03 g/t gold and the maximum was 11.95 g/t gold. The minimum interval width of intersections was 1.05 m and the maximum was 19.81 m.

Sunrise Drill Results

Ibis Zone

  • 6,574 m in 26 holes
  • Ibis discovery hole OS-11-040 intersected 38.10 m of 3.33 g/t gold
  • The average grade of all reported Ibis Zone intersections is 3.10 g/t gold*
  • Stratabound gold mineralization drilled over a 200 m strike length
  • Open at depth and along strike

Ibis Highlight Drill Results

HOLE FROM
(m)
TO
(m)
INTERVAL
(m)**
GOLD
(g/t)
OS-11-040 95.40 133.50 38.10 3.33
OS-11-073 17.37 69.19 51.82 3.13
OS-12-120 106.07 133.50 27.43 6.28

**True widths for Ibis drill results are estimated to be 55% - 100% of intersected widths

The Ibis Zone (formerly called Isis East) is located 550 m southwest of the Sunrise Zone within the 12 sq/km Osiris cluster. Gold mineralization is stratabound and localized in the crest of an anticlinal fold at or near the favourable contact between dolomite altered limestone and underlying silty limestone. Mineralization has been intersected over an unfolded strike length of 230 m and remains open for extension below the current tier of drilling. Two soil geochemical anomalies located to the east and west of the currently drilled areas that have not been fully-tested.

2017 Exploration Plans

RAB drilling of three untested gold-in-soil anomalies to the north and east where previous drilling intersected the main Ibis Zone. Select rock samples from within these anomalies grade: 1.30 gt/ gold, 1.81 g/t gold, 2.46 g/t gold and 3.15 g/t gold.

* Out of 18 released Osiris intersections, the minimum intersection grade was 1.02 g/t gold and the maximum was 6.28 g/t gold. The minimum interval width of intersections was 3.32m and the maximum was 51.82 m.

Ibis Drill Results

Osiris Cluster Photo Gallery

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