NexGen Energy (NXE-V) - Hole AR-16-78c4 Assay Returns 37.5 m at 17.60% U3O8 including 5.5 m at 60.14% U3O8

June 21, '16 - NR
NexGen Energy is pleased to report assay results for eight angled holes from our highly successful winter 2016 drilling program on our 100% owned, Rook I property, Athabasca Basin, Saskatchewan.
Assay results from the higher grade A2 Sub-Zone ("Sub-Zone") have yet again confirmed strong uranium grades over significant intervals at the Arrow Deposit. Hole AR-16-78c4 which was drilled 59 m up-dip and northeast of hole AR-15-44b has returned 37.5 m at 17.60% U3O8 including 5.5 m at 60.14% U3O8 and 1.5 m at 71.93% U3O8. This intersection represents a continuous grade x thickness ("GT") of 660, the fourth highest at Arrow. Within the A2 shear drill hole AR-16-78c4 returned a total composite GT of 834.
Additionally, drill hole AR-16-76c4 returned 68.0 m at 2.09% U3O8 including 14.5 m at 5.08% U3O8 and an additional section of 32.0 m at 1.97% U3O8 including 10.0 m at 5.15% U3O8. Of key importance, high grade mineralization encountered in both holes was largely intersected outside the current limits of the A2 High Grade Domain (see Figure 1). Assay results for 23 holes at Arrow remain pending.
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
| 17.8m
| 30.3m
| 15.7m
| 4.4m
| Total Off-scale (>30,000 to 60,999 cps)3 =
| 4.5m
| 3.0m
| 3.9m
| 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-16-81c31
| AR-16-76c41
| AR-16-
76c12
| AR-16-
76c32
| AR-16-
63c12
| AR-16-
63c32
| AR-16-
86c11
| AR-16-
74c12
| AR-16-
63c22
| AR-16-
91c21
| AR-16-
64c32
| AR-16-
64c22
| AR-16-
64c12
| AR-16-
72c22
| AR-16-
78c12
| AR-16-
78c41
| Total composite mineralization =
| 48.5m
| 105.7m
| 73.5m
| 67.5m
| 55.5m
| 147.0m
| 90.0m
| 88.0m
| 138.0m
| 89.0m
| 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
| 14.8m
| 14.9m
| 6.9m
| 22.1m
| 8.8m
| 21.2m
| 17.1m
| 13.4m
| 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
| 2.8m
| 5.0m
| 0.5m
| 3.0m
| 2.3m
| 1.2m
| 9.9m
| 6.0m
| 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
| 3.0m
| 0.0m
| 5.5m
| 0.0m
| 1.7m
| 2.5m
| 5.5m
| Continuous GT (Grade x Thickness) =
| Assays Pending
| 142 and 63
| 762
| 761
| 203
| 274 and 124
| Assays Pending
| 160 and
35
| 638 and 604
| Assays Pending
| 172 and 92
| 541
| 338
| 156 and
45
| 485
| 660 and 88 and 67
|
1 radioactivity results previously released
| 2 radioactivity and assays results previously released
| 3 minimum radioactivity using RS-120 gamma spectrometer
|
Highlights:
A2 Sub-Zone
AR-16-78c4 (59 m up-dip and northeast from AR-15-44b) intersected 37.5 m at 17.60% U3O8 (480.5 to 518.0 m) including 15.0 m at 29.92% U3O8 (490.0 to 505.0 m) and 1.5 m at 71.93% U3O8 (493.5 to 495.0 m) in the Sub-Zone.
AR-16-76c4 (81 m down-dip and southwest of AR-15-44b) intersected 68.0 m at 2.09% U3O8 (576.5 to 644.5 m) including 14.5 m at 5.08% U3O8 (629.0 to 643.5 m) and an additional 32.0 m at 1.97% U3O8 (537.5 to 569.5 m) including 10.0 m at 5.15% U3O8 (556.5 to 566.5 m) in the Sub-Zone.
Arrow, Activities & Financial
The land-based and basement hosted Arrow zone currently covers an area of 870 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.
The spring 2016 program comprising 7,500 m of drilling will be transitioning to the summer 2016 program in late-June.
The Company has approximately cash on hand of $100 million.
A three-dimensional view of the A2 Sub-Zone, drill hole locations and a close-up of the A2 long section are shown in Figures 1 to 3. Assay results are presented in Table 2.
Garrett Ainsworth, Vice-President, Exploration and Development, commented "Drill holes -78c4 and -76c4 highlight the strong continuity of grade and thicknesses across the A2 sub-zone from northeast to southwest. As shown in Figure 1, large sections of these assayed holes are outside the A2 high grade domain shell upon which Arrow's Maiden Resource was estimated. Infill drilling is delivering strong continuity of mineralization and will expand the volume of the A2 high grade domain shell."
Leigh Curyer, Chief Executive Officer, commented: "The assay results continue to exceed our objectives of infill drilling by delivering broader and higher grade intervals. Preparations for the summer drill season are in their final stages which will continue to focus on the known area of mineralization, the new area 180 m southwest of Arrow, and along trend to the northeast and southwest along the Patterson Corridor."
| Table 2: Arrow Deposit Assay Results
|
| Drill Hole
| Athabasca Group -
Basement
Unconformity Depth
(m)
| SRC Geoanalytical Results
| Hole ID
| Azimuth
| Dip
| Total
Depth (m)
| From (m)
| To (m)
| Interval (m)
| U3O8 (wt%)
| AR-16-74c4
| 144
| -69
| 930.00
| 113.80
| 456.50
| 458.50
| 2.00
| 0.05
|
|
|
|
|
| 518.00
| 519.00
| 1.00
| 0.03
|
|
|
|
|
| 537.50
| 542.00
| 4.50
| 0.18
|
|
|
|
|
| 547.00
| 548.00
| 1.00
| 0.01
|
|
|
|
|
| 560.00
| 561.00
| 1.00
| 0.49
|
|
|
|
|
| 563.50
| 587.00
| 23.50
| 0.11
|
|
|
|
|
| 589.50
| 592.50
| 3.00
| 0.06
|
|
|
|
|
| 595.00
| 602.50
| 7.50
| 1.52
|
|
|
|
|
| 605.50
| 609.50
| 4.00
| 0.06
|
|
|
|
|
| 612.00
| 619.00
| 7.00
| 0.57
|
|
|
|
|
| 624.50
| 661.00
| 36.50
| 0.53
|
|
|
|
|
| 663.50
| 680.50
| 17.00
| 0.28
|
|
|
|
|
| 687.00
| 687.50
| 0.50
| 0.11
|
|
|
|
|
| 697.50
| 702.50
| 5.00
| 0.29
|
|
|
|
|
| 705.50
| 708.50
| 3.00
| 0.27
|
|
|
|
|
| 715.50
| 717.00
| 1.50
| 1.78
|
|
|
|
|
| 723.50
| 725.00
| 1.50
| 0.64
|
|
|
|
|
| 729.00
| 734.50
| 5.50
| 0.94
|
|
|
|
|
| 737.00
| 740.50
| 3.50
| 0.63
|
|
|
|
|
| 743.00
| 763.00
| 20.00
| 0.72
|
|
|
|
|
| 767.00
| 771.00
| 4.00
| 0.03
|
|
|
|
|
| 774.50
| 775.00
| 0.50
| 0.03
|
|
|
|
|
| 805.00
| 814.50
| 9.50
| 0.63
|
|
|
|
|
| 817.00
| 817.50
| 0.50
| 0.85
|
|
|
|
|
| 860.00
| 878.00
| 18.00
| 0.04
|
|
|
|
|
| 884.00
| 886.50
| 2.50
| 1.04
|
|
|
|
|
| 893.00
| 897.50
| 4.50
| 1.32
| AR-16-76c4
| 140
| -70
| 668.00
| 114.95
| 493.00
| 496.50
| 3.50
| 0.10
|
|
|
|
|
| 511.50
| 517.50
| 6.00
| 0.09
|
|
|
|
|
| 537.50
| 569.50
| 32.00
| 1.97
|
|
|
|
| incl.
| 556.50
| 566.50
| 10.00
| 5.15
|
|
|
|
|
| 576.50
| 644.50
| 68.00
| 2.09
|
|
|
|
| incl.
| 629.00
| 643.50
| 14.50
| 5.08
|
|
|
|
|
| 647.50
| 650.50
| 3.00
| 0.13
|
|
|
|
|
| 657.50
| 666.00
| 8.50
| 0.05
| AR-16-78c2
| 138
| -68
| 603.00
| 110.95
| 395.00
| 409.00
| 14.00
| 0.06
|
|
|
|
|
| 412.00
| 416.50
| 4.50
| 0.02
|
|
|
|
|
| 419.00
| 421.00
| 2.00
| 0.04
|
|
|
|
|
| 427.00
| 448.00
| 21.00
| 0.10
|
|
|
|
|
| 453.00
| 472.50
| 19.50
| 6.24
|
|
|
|
|
| 488.00
| 502.00
| 14.00
| 2.08
|
|
|
|
|
| 591.00
| 593.50
| 2.50
| 0.03
| AR-16-78c3
| 138
| -68
| 630.00
| 110.95
| 370.50
| 401.50
| 31.00
| 0.06
|
|
|
|
|
| 404.50
| 406.50
| 2.00
| 0.07
|
|
|
|
|
| 409.00
| 412.00
| 3.00
| 0.02
|
|
|
|
|
| 419.50
| 422.00
| 2.50
| 0.03
|
|
|
|
|
| 438.00
| 442.50
| 4.50
| 0.17
|
|
|
|
|
| 456.50
| 494.00
| 37.50
| 2.16
|
|
|
|
|
| 516.00
| 534.00
| 18.00
| 0.93
|
|
|
|
|
| 553.50
| 558.00
| 4.50
| 0.08
|
|
|
|
|
| 562.50
| 566.00
| 3.50
| 0.53
|
|
|
|
|
| 576.00
| 584.00
| 8.00
| 0.04
|
|
|
|
|
| 587.50
| 588.50
| 1.00
| 0.08
|
|
|
|
|
| 592.00
| 605.00
| 13.00
| 0.03
|
|
|
|
|
| 614.00
| 625.50
| 11.50
| 0.08
|
|
|
|
|
| 628.50
| 629.50
| 1.00
| 0.03
| AR-16-78c4
| 138
| -68
| 705.00
| 110.95
| 369.00
| 372.50
| 3.50
| 0.05
|
|
|
|
|
| 378.50
| 380.00
| 1.50
| 0.03
|
|
|
|
|
| 388.50
| 406.50
| 18.00
| 0.04
|
|
|
|
|
| 440.50
| 450.50
| 10.00
| 0.07
|
|
|
|
|
| 468.50
| 477.50
| 9.00
| 0.15
|
|
|
|
|
| 480.50
| 518.00
| 37.50
| 17.60
|
|
|
|
| incl.
| 490.00
| 505.00
| 15.00
| 29.92
|
|
|
|
| incl.
| 491.50
| 497.00
| 5.50
| 60.14
|
|
|
|
| incl.
| 493.50
| 495.00
| 1.50
| 71.93
|
|
|
|
|
| 521.50
| 555.00
| 33.50
| 2.64
|
|
|
|
|
| 557.50
| 560.50
| 3.00
| 0.24
|
|
|
|
|
| 563.50
| 564.50
| 1.00
| 0.04
|
|
|
|
|
| 575.50
| 605.50
| 30.00
| 2.22
|
|
|
|
|
| 613.00
| 624.00
| 11.00
| 1.53
|
|
|
|
|
| 628.00
| 641.00
| 13.00
| 0.03
|
|
|
|
|
| 644.50
| 645.00
| 0.50
| 0.04
|
|
|
|
|
| 648.00
| 650.00
| 2.00
| 0.01
|
|
|
|
|
| 653.00
| 654.50
| 1.50
| 0.11
|
|
|
|
|
| 658.00
| 687.00
| 29.00
| 0.09
| AR-16-80c1
| 147
| -70
| 796.00
| 120.20
| 433.00
| 437.00
| 4.00
| 0.31
|
|
|
|
|
| 440.50
| 441.50
| 1.00
| 0.09
|
|
|
|
|
| 446.50
| 456.00
| 9.50
| 0.20
|
|
|
|
|
| 461.00
| 467.50
| 6.50
| 0.08
|
|
|
|
|
| 486.00
| 491.00
| 5.00
| 0.04
|
|
|
|
|
| 504.00
| 505.50
| 1.50
| 0.05
|
|
|
|
|
| 519.50
| 521.00
| 1.50
| 0.02
|
|
|
|
|
| 526.00
| 527.00
| 1.00
| 0.08
|
|
|
|
|
| 541.50
| 551.00
| 9.50
| 0.03
|
|
|
|
|
| 561.00
| 563.50
| 2.50
| 0.39
|
|
|
|
|
| 575.50
| 582.00
| 6.50
| 0.07
|
|
|
|
|
| 597.50
| 611.00
| 13.50
| 0.03
|
|
|
|
|
| 613.50
| 632.50
| 19.00
| 0.11
|
|
|
|
|
| 665.00
| 665.50
| 0.50
| 0.30
|
|
|
|
|
| 670.50
| 672.50
| 2.00
| 0.11
|
|
|
|
|
| 677.00
| 678.00
| 1.00
| 0.28
|
|
|
|
|
| 690.00
| 690.50
| 0.50
| 0.20
|
|
|
|
|
| 721.00
| 723.50
| 2.50
| 0.02
|
|
|
|
|
| 730.50
| 731.50
| 1.00
| 0.04
|
|
|
|
|
| 739.00
| 742.00
| 3.00
| 0.11
| AR-16-80c2
| 147
| -70
| 561.00
| 120.20
| 455.00
| 458.00
| 3.00
| 0.07
|
|
|
|
|
| 464.50
| 472.00
| 7.50
| 3.18
|
|
|
|
|
| 475.00
| 479.00
| 4.00
| 0.04
|
|
|
|
|
| 495.50
| 501.00
| 5.50
| 2.64
|
|
|
|
|
| 517.00
| 517.50
| 0.50
| 0.03
|
|
|
|
|
| 527.00
| 528.00
| 1.00
| 0.07
| AR-16-81c1
| 145
| -69
| 846.00
| 111.00
| 474.50
| 480.00
| 5.50
| 0.03
|
|
|
|
|
| 488.00
| 507.50
| 19.50
| 0.92
|
|
|
|
|
| 517.50
| 518.50
| 1.00
| 0.17
|
|
|
|
|
| 522.00
| 523.00
| 1.00
| 0.06
|
|
|
|
|
| 534.00
| 534.50
| 0.50
| 0.02
|
|
|
|
|
| 554.50
| 556.00
| 1.50
| 0.03
|
|
|
|
|
| 586.00
| 586.50
| 0.50
| 1.11
|
|
|
|
|
| 599.50
| 603.00
| 3.50
| 0.14
|
|
|
|
|
| 612.00
| 616.50
| 4.50
| 0.06
|
|
|
|
|
| 621.50
| 622.00
| 0.50
| 0.04
|
|
|
|
|
| 634.00
| 635.00
| 1.00
| 0.03
|
|
|
|
|
| 640.00
| 645.00
| 5.00
| 0.03
|
|
|
|
|
| 654.00
| 656.00
| 2.00
| 0.14
|
|
|
|
|
| 669.50
| 670.00
| 0.50
| 0.33
|
|
|
|
|
| 691.50
| 692.00
| 0.50
| 0.03
|
|
|
|
|
| 697.00
| 714.50
| 17.50
| 0.08
|
|
|
|
|
| 718.00
| 732.00
| 14.00
| 0.21
|
|
|
|
|
| 734.50
| 736.50
| 2.00
| 0.89
|
|
|
|
|
| 740.50
| 743.50
| 3.00
| 0.54
|
|
|
|
|
| 752.00
| 753.50
| 1.50
| 0.06
|
|
|
|
|
| 759.50
| 769.00
| 9.50
| 0.04
|
|
|
|
|
| 772.00
| 775.00
| 3.00
| 1.29
|
|
|
|
|
| 778.50
| 779.50
| 1.00
| 0.03
|
|
|
|
|
| 798.00
| 798.50
| 0.50
| 0.41
|
|
|
|
|
|
|
|
|
|
Composite parameters:
Minimum thickness 0.5 m downhole
Cutoff grade 0.01% U3O8
Maximum internal dilution 2.00 m downhole
U3O8 analyzed by ICP-OES at SRC Laboratories, Saskatoon, Saskatchewan
All depths and intervals are meters downhole, true thicknesses are yet to be determined
Split core samples were taken systematically, and intervals were submitted to SRC Geoanalytical Laboratories (an SCC ISO/IEC 17025: 2005 Accredited Facility) of Saskatoon for analysis. All samples were analyzed using ICP-MS for trace elements on partial and total digestions, ICP-OES for major and minor elements on a total digestion, and fusion solution of boron by ICP-OES. Mineralized samples were analyzed for U3O8 by ICP-OES and selected samples for gold by fire assay.
All assay batches reported herein are subjected to and have passed rigorous internal QA/QC protocols that include, but are not limited to, the blind insertion of standard reference materials, blank materials and field duplicates into the sample stream at both random and systematic intervals.
The technical information in this news release has been approved by Garrett Ainsworth, P.Geo., Vice President – Exploration & Development, a qualified person for the purposes of National Instrument 43-101 – Standards of Disclosure for Mineral Projects. Mr. Ainsworth reviewed the data disclosed in this news release, including the sampling, analytical and test data underlying the information contained in this news release. Mr. Ainsworth has verified that the results are accurate by reviewing the official assay certificates provided to the Company.
About NexGen
NexGen is a British Columbia corporation with a focus on the acquisition, exploration and development of Canadian uranium projects. NexGen has a highly experienced team of uranium industry professionals with a successful track record in the discovery of uranium deposits and in developing projects through discovery to production.
NexGen owns a portfolio of highly prospective uranium exploration assets in the Athabasca Basin, Saskatchewan, Canada, including a 100% interest in Rook I, location of the Arrow Discovery in February 2014. The Arrow Deposit's maiden Inferred mineral resource estimate is 201.9 M lbs U3O8 contained in 3.48 M tonnes grading 2.63% U3O8. Rook I also hosts the Bow Discovery which is 3.7 km along trend and northeast of Arrow and was made in March 2015.
SOURCE NexGen Energy Ltd.


Image with caption: "Figure 1: Isometric View of Arrow A2 High-Grade Domain (CNW Group/NexGen Energy Ltd.)". Image available at: http://photos.newswire.ca/images/download/20160621_C2114_PHOTO_EN_718480.jpg
Image with caption: "Figure 2: Arrow Deposit Drill Hole Locations (CNW Group/NexGen Energy Ltd.)". Image available at: http://photos.newswire.ca/images/download/20160621_C2114_PHOTO_EN_718482.jpg
Image with caption: "Figure 3: A2 Mineralized Shear Long Section (Close Up of A2 Sub-Zone) (CNW Group/NexGen Energy Ltd.)". Image available at: http://photos.newswire.ca/images/download/20160621_C2114_PHOTO_EN_718484.jpg
Leigh Curyer, Chief Executive Officer, NexGen Energy Ltd., +1 604 428 4112, lcuryer@nexgenenergy.ca , www.nexgenenergy.ca ;
Travis McPherson, Corporate Development Manager, NexGen Energy Ltd., +1 604 428 4112, tmcpherson@nexgenenergy.ca , nexgenenergy.ca |