Uranium news from Saskatchewan and elsewhere to March 20, 2015
by Greg Klein
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Step-outs renew Fission’s interest west of PLS resource
The zone’s five previous holes found disappointingly low grades but Fission Uranium’s (TSX:FCU) most recent drilling brings new attention to R600W, 555 metres west of the Triple R deposit that surprised even some of the more optimistic Patterson Lake South-watchers. The most westerly of four PLS zones got five more holes this season, four showing mineralization in basement rock and three suggesting high grades over significant widths, the company announced March 18.
These results, no substitute for the still-pending assays, come from a scintillometer that measures drill core radiation in counts per second.
Hole PLS15-364, 570 metres west of Triple R, hit a composite total of 45.5 metres of mineralization over a 61-metre section starting at 107 metres in downhole depth. A composite 6.44 metres surpassed 10,000 cps, a level sometimes termed “offscale” due to the limitations of earlier scintillometers.
PLS15-352 revealed a continuous 56.5-metre intercept starting at 102.5 metres that included continuous “offscale” readings for 11.77 metres. PLS15-360 showed 25 continuous metres starting at 111 metres, while PLS15-364 gave up 40.5 continuous metres starting at 107 metres.
True widths weren’t available.
The angled holes have expanded the zone’s strike to 45 metres, a 50% increase that extends PLS’s potential strike from 2.24 to 2.25 kilometres. R600W’s lateral width extends up to about 30 metres. Results have “substantially increased our understanding of the geometry and tenure of the mineralization,” said Fission COO/chief geologist Ross McElroy.
While delineation continues at Triple R, R600W has more drilling to come.
Read more about the Triple R resource estimate.
See an historical timeline of the PLS discovery.
NexGen continues to find high grades at Rook 1’s Arrow zone
Its first two batches of winter assays once again have NexGen Energy’s (TSXV:NXE) Rook 1 project vying for attention with Fission’s Patterson Lake South. On March 17 NexGen announced the project’s widest high-grade interval yet, hitting 70 metres of 2.2% U3O8. Two days later the company confirmed an 88-metre strike extension from AR-14-30, an outstanding hole released last October. The results come from Rook 1’s Arrow zone, defined last month as three mineralized shears named A1, A2 and A3.
The star hole from the first batch, AR-15-34b, was a 30-metre step-out from October’s AR-14-30, centrepiece of the A2 shear. Although the new hole’s other intercepts fell far short in grade and thickness, these intervals brought redemption, the first from A2, the second from A1:
- 2.2% U3O8 over 70 metres, starting at 522 metres in downhole depth
- (including 8.95% over 11 metres)
- 0.12% over 32 metres, starting at 697 metres
As for some other highlights:
- 0.26% over 12.5 metres, starting at 548.5 metres
- 0.33% over 18.5 metres, starting at 394.5 metres
- 0.49% over 12 metres, starting at 553.5 metres
- 0.32% over 51 metres, starting at 167 metres
- 0.1% over 61.5 metres, starting at 248 metres
True widths weren’t available. AR-14-36 was a vertical hole. The others were sunk at a dip of -70 or -75 degrees.
Assays for two angled holes released two days later inspired additional confidence in A2. Highlights show:
- 2.46% over 16.5 metres, starting at 580.5 metres
- (including 12.85% over 3 metres)
- 0.34% over 13.5 metres, starting at 602 metres
- 2.88% over 40 metres, starting at 621.5 metres
- (including 4.92% over 22 metres)
- 0.75% over 6 metres, starting at 664 metres
- 0.9% over 32 metres, starting at 583.5 metres
Again, true widths weren’t provided. The latter hole confirms an 88-metre strike expansion southwest of AR-14-30, NexGen stated.
The Arrow zone covers about 515 metres by 215 metres with mineralization starting at about 100 metres in depth and now extending to 820 metres. The zone remains open in all directions and at depth.
NexGen has further drilling planned for the A2 shear as well as the newly discovered high-grade area within A3. At last count the season’s program had completed 38 holes, according to the March 19 press release, or 39, according to a February 24 statement. Roughly a third of the 18,000-metre winter agenda has been drilled.
Phase I drilling finds anomalous radioactivity at Lakeland Resources’ Star/Gibbon’s Creek
The first round of drilling went radioactive at
Lakeland Resources’ Star/Gibbon’s Creek project.
Lakeland Resources TSXV:LK wrapped up a successful 14-hole, 2,550-metre winter program by reporting anomalous radioactivity at its Star/Gibbon’s Creek project on the Athabasca Basin’s northern rim. While assays are pending, initial results also reveal “alteration suggestive of a proximal basement-hosted or unconformity-hosted uranium occurrence,” said company president Jonathan Armes on March 12.
Six holes along a corridor about 1.5 to two kilometres long struck the unconformity at depths of less than 125 metres, finding either anomalous radioactivity, alteration or both. The results confirm the trend as a high-priority target.
Three other holes along a one-kilometre corridor near the head of the Gibbon’s Creek boulder field found the unconformity at depths of less than 110 metres, again intersecting either anomalous radioactivity, alteration or both and confirming another high-priority target.
The readings come from a downhole scintillometer and are no substitute for assays, which will follow. Lakeland attributes background radioactivity to readings of 10 to 100 cps. Results show these anomalous levels of at least 800 cps over 0.3 metres:
- An average 1,104 cps over 0.4 metres starting at 81.2 metres in downhole depth. The maximum level hit 1,379 cps.
- An average 1,204 cps over 0.3 metres starting at 99 metres, with a maximum of 1,589 cps
- An average 1,072 cps over 0.7 metres starting at 99.6 metres, with a maximum of 1,312 cps
- An average 2,828 cps over 1 metre starting at 107.1 metres, with a maximum of 7,926 cps
- An average 1,415 cps over 0.6 metres starting at 102.9 metres, with a maximum of 1,740 cps
True widths weren’t available. Along with the other anomalous results, hole GC15-03 is considered highly anomalous.
To further solidify targets, the project also underwent a 270-station ground gravity survey.
“During the coming weeks we will be in receipt of geochemical results for uranium and pathfinder elements such as boron, nickel, cobalt and arsenic,” Armes stated. “As with other historic uranium discoveries within the Athabasca Basin, each successful drill program helps guide the next towards the discovery of a new uranium occurrence.”
The road-accessible project sits a few kilometres from the town of Stony Rapids, with nearby infrastructure.
Lakeland also holds drill-ready projects at Newnham Lake, east of Star/Gibbon’s, and Lazy Edward Bay on the Basin’s southern rim. Late last month the company expanded its holdings to 32 properties totalling over 300,000 hectares, one of the largest portfolios in the Basin region.
As of March 12 Lakeland’s treasury held close to $3 million.
Read more about the Star/Gibbon’s Creek project.
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