https://www.prnewswire.com/new…nix-zone-a-301483266.html
Denison Announces Intersection of 24.9% eU3O8 over 4.2 metres extending beyond high-grade domain at Phoenix Zone A
TORONTO, Feb. 16, 2022 /PRNewswire/ - Denison Mines Corp. ("Denison" or the "Company") (TSX: DML) (NYSE American: DNN) is pleased to announce multiple intersections of high-grade uranium mineralization beyond the previously defined extents of the high-grade domain in the Phase 1 area of the Zone A portion of the Phoenix uranium deposit ("Phoenix") at the Company's effective 95%-owned Wheeler River Uranium Project ("Wheeler River" or the "Project") in northern Saskatchewan. View PDF version.
Three drill holes were completed during the fall of 2021 to follow up the discovery of high-grade uranium mineralization (22.0% eU3O8 over 8.6 metres) in drill hole GWR-045, which was located outside of the previously defined extent of the high-grade domain of Phoenix Zone A (see Denison's news release dated July 29, 2021). All three follow-up holes returned intervals of high-grade uranium mineralization, including massive uraninite mineralization in GWR-049.
- 24.9% eU3O8 over 4.2 metres in GWR-049: This drill hole was expected to intersect only a narrow interval of high-grade uranium mineralization along the northwestern boundary of the Phoenix Zone A high-grade resource domain, approximately 17 metres to the northeast of GWR-045. The drill hole intersected a thick interval of high-grade unconformity-associated uranium mineralization that, coupled with the results of GWR-045, is expected to expand the volume of the high-grade domain to the northwest outside of the extents of the same in the current resource model (see Figures 1 and 3).
- 3.6% eU3O8 over 3.5 metres in WR-787: This drill hole was designed to test the extents of the high-grade mineralization discovered in GWR-049, by targeting the unconformity approximately 6 metres north of the mineralization in GWR-049 (see Figures 1 and 3). Mineralization in WR-787 was encountered at the unconformity, and included a mineralized interval grading 15.2% eU3O8 over 0.7 metres.
- 1.2% eU3O8 over 2.1 metres in WR-784: This drill hole was designed to test the extents of high-grade mineralization discovered by drill hole GWR-045, by targeting the unconformity approximately 6 metres northwest of the mineralized intersection in GWR-045 (see Figures 1 and 2). The drill hole intersected perched uranium mineralization grading 1.2% eU3O8 over 2.1 metres, lying approximately 6.5 metres above the unconformity.
Andy Yackulic, P. Geo., Denison's Director, Exploration, commented, "The grade and thickness of mineralization in holes GWR-045 and GWR-049 significantly exceeded what was predicted by the Phoenix block model. We believe these results will support an expansion of the volume of the high-grade mineralized domain in Phase 1 area of Zone A. Follow-up drilling encountered additional uranium mineralization that is also expected to be additive to future updates to the resource model for Phoenix Zone A. Of particular interest is the perched mineralization discovered in WR-784, which presents a style of mineralization that has not been previously encountered at Phoenix. As this intersection is located outside the extents of previous drilling at Phoenix, the potential exists to identify additional perched mineralization along the northwest margin of the Deposit."
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