ef20e78d-c324-44f1-aa52-69e277993c1a.pdf
NexGen Drills Off-Scale in All Four Shears at the Arrow Deposit
Vancouver, BC, May 19, 2016 - NexGen Energy Ltd. ("NexGen" or the "Company") (TSXV:NXE, OTCQX:NXGEF) is pleased to announce further results from the winter-spring drilling program on our 100% owned Rook I Property, Athabasca Basin, Saskatchewan. Eight drill holes have intersected extensive mineralization, and off- scale radioactivity (>10,000 to >61,000 cps) has been intersected in each of the A1, A2, A3 and A4 shears.
Within the A1 shear, the high grade mineralized interval from hole AR-16-84c1 (8.35 m of off-scale radioactivity with assays pending - see News Release dated April 14, 2016) has been confirmed and expanded with two further drill holes. This is highlighted by hole AR-16-84c3 which was drilled 33 m down-dip and southwest of -84c1 intersected 35.5m of total composite mineralization, including 2.6 m of total composite off-scale mineralization. This new area of high grade mineralization in the A1 shear is well outside and not part of the maiden Arrow deposit resource estimate that only includes drilling up to October 2015.
Drilling has also continued to confirm the robust nature of mineralization in the A2 shear where drill holes AR- 16-80c4, -81c3, and -86c1 all individually intersected more than 10 m of total composite off-scale mineralization. There is significant potential for expansion of the A2 high grade domain around each of these holes, and substantial massive to semi-massive uranium mineralization was intersected and remains wide open up dip and southwest from hole AR-16-86c1 in the higher grade A2 sub-zone (the "Sub-Zone").
Hole AR-16-86c1 returned the largest total composite mineralization to date across the A1 to A3 shears. It was drilled at the currently defined southwest extent of the Sub-Zone intersecting 92.0 m of total composite mineralization in the A3 shear, and 246.0 m of total composite mineralization throughout the entire hole
Within the A4 shear, 3.6 m of off-scale radioactivity has been intersected in drill hole AR-16-86c1, which is a 19 m step out down-dip from hole AR-16-76c1 (1.97% U3O8 over 28.0 m in the A4 shear - see News Release May 5, 2016).
Highlights:
A1 Shear:
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AR-16-84c3 (33 m down-dip and southwest from AR-16-84c1) intersected 35.5 m of total composite mineralization including 2.6 m of total composite off-scale radioactivity (>10,000 - 51,000 cps) within a 95.0 m section (677.5 to 772.5 m).
A2 Shear:
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AR-16-86c1 (84 m up-dip and southwest from AR-15-44b) intersected 90.0 m of total composite mineralization including 13.05 m of total composite off-scale radioactivity (>10,000 - >61,000 cps) within a 115.5 m section (404.0 to 519.5 m).
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AR-16-81c3 (23 m down-dip and southwest from AR-16-80c4) intersected 48.5 m of total composite mineralization including 11.65 m of total composite off-scale radioactivity (>10,000 - >61,000 cps) within a 97.5 m section (513.5 to 611.0 m).
A3 Shear:
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AR-16-86c1 (32 m down-dip and southwest from AR-15-48c1) intersected 92.0 m of total composite mineralization including 0.2 m of total composite off-scale radioactivity (>10,000 - 15,000 cps) within a 130.0 m section (562.5 to 692.5 m).
A4 Shear:
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AR-16-86c1 (19 m down-dip from AR-16-76c1) intersected 63.5 m of total composite mineralization including 3.6 m of total composite off-scale radioactivity (>10,000 - 43,000 cps) within a 149.0 m section (696.5 to 845.5 m).
Table 1: Higher Grade A2 Sub-Zone Angled Drill Holes
|
2015
|
AR-15- 59c22
|
AR-15- 54c12
|
AR-15- 58c12
|
AR-15- 622
|
AR-15- 44b2
|
AR-15- 49c22
|
AR-15- 57c32
|
|
Total composite mineralization =
|
75.5m
|
42.0m
|
86.0m
|
143.0m
|
135.6m
|
73.5m
|
62.5m
|
|
Total Off-scale (>10,000 to 29,999 cps)3 =
|
11.4m
|
5.9m
|
14.3m
|
17.7m
|
30.3m
|
15.7m
|
4.4m
|
|
Total Off-scale (>30,000 to 60,999 cps)3 =
|
4.5m
|
3.0m
|
3.8m
|
10.6m
|
7.8m
|
5.2m
|
2.5m
|
|
Total Off-scale (>61,000 cps)3 =
|
1.0m
|
0.5m
|
2.0m
|
2.0m
|
1.5m
|
2.2m
|
1.8m
|
|
Continuous GT (Grade x Thickness) =
|
371
|
277
|
200
and 345
|
787
|
655
|
605
|
319
|
|
2016
|
AR-16- 81c3
|
AR-16- 76c41
|
AR-16- 76c12
|
AR-16- 76c31
|
AR-16- 63c12
|
AR-16- 63c32
|
AR-16- 86c1
|
AR-16- 74c12
|
AR-16- 63c22
|
AR-16- 64c32
|
AR-16- 64c22
|
AR-16- 64c12
|
AR-16- 72c22
|
AR-16- 78c11
|
AR-16- 78c41
|
|
Total composite mineralization =
|
48.5m
|
105.7m
|
73.5m
|
67.5m
|
55.5m
|
147.0m
|
90.0m
|
88.0m
|
138.0m
|
102.0m
|
76.0m
|
74.0m
|
93.0m
|
64.0m
|
120.5m
|
|
Total Off-scale (>10,000 to 29,999 cps)3 =
|
5.2m
|
19.9m
|
14.7m
|
14.9m
|
6.9m
|
22.1m
|
8.8m
|
21.2m
|
17.1m
|
18.8m
|
16.0m
|
10.3m
|
7.0m
|
11.6m
|
25.8m
|
|
Total Off-scale (>30,000 to 60,999 cps)3 =
|
4.0m
|
1.0m
|
2.7m
|
5.0m
|
0.5m
|
3.0m
|
2.3m
|
1.2m
|
9.9m
|
2.5m
|
4.7m
|
3.7m
|
0.5m
|
3.0m
|
6.2m
|
|
Total Off-scale (>61,000 cps)3 =
|
2.5m
|
0.0m
|
5.3m
|
4.5m
|
0.0m
|
0.5m
|
2.0m
|
0.0m
|
13.9m
|
0.0m
|
5.5m
|
0.0m
|
1.7m
|
2.5m
|
5.5m
|
|
Continuous GT (Grade x Thickness) =
|
Assays Pending
|
Assays Pending
|
762
|
Assays Pending
|
203
|
274
and 124
|
Assays Pending
|
160
and 35
|
638
and 604
|
172
and 92
|
541
|
338
|
156
and 45
|
Assays Pending
|
Assays Pending
|
1 radioactivity results previously released
2 radioactivity and assays results previously released
3 minimum radioactivity using RS-120 gamma spectrometer
Arrow, Activities & Financial
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The land-based and basement hosted Arrow zone currently covers an area of 865 m by 280 m with a vertical extent of mineralization commencing from 100 m to 920 m, and remains open in most directions and at depth.
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The spring 2016 program comprising 7,500 m of drilling continues with three drill rigs active. Concurrently, preparations are underway for a 30,000 m summer drill program to begin in mid to late June.
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The Company has cash on hand of $28M.
Drill hole location maps, and a close-up of the A2 longsection are shown in Figures 1 to 3.
Garrett Ainsworth, Vice-President, Exploration and Development, commented: "These latest drill results of infill drilling continues to rapidly expand the size and scale of Arrow. Drill hole AR-16-86c1 has returned the highest total composite mineralization to date, which demonstrates the strength and width extent of the mineralizing system responsible for precipitating the Arrow deposit."
Leigh Curyer, Chief Executive Officer commented: "There are 27 assays pending from the winter program which includes 6 assays from the Sub-Zone and we are still actively drilling with 3 rigs. In total 42 holes have been drilled at Arrow since the resource estimate and we plan to more than double that number by year-end. Planning for an expanded summer 2016 drill program is in process which will include infill and expansion drilling around Arrow, the 180 m southwest extension, Cannon and regional targets along trend from Arrow."
Figure 1: Arrow Drill Hole Locations