By Cory댊
Some More Nice Drill Results From Skeena Resources, Eskay Creek Project
Below are 5 more holes from Skeena Resource at the Eskay Project. Walter and I recently discussed the Eskay resource that was announced only a couple weeks ago (click here to listen to that interview). The Company has really
Stay tuned as I will be interviewing Walter shortly to recap this recent news.
Click here to visit the Skeena website.
…Here’s the news…
Vancouver, BC (October 1, 2018) Skeena Resources Limited (TSX.V: SKE, OTCQX: SKREF) (“Skeena” or the “Company”) is pleased to announce additional Au-Ag assay results for five holes from the ongoing Phase I surface drilling program at the Eskay Creek Project (“Eskay Creek”) located in the Golden Triangle of British Columbia. Base metal results are pending and will be disclosed once available. The multifaceted Phase I program is being performed in the historically drill defined 21A, 21C and 22 Zones. Reference images are presented at the end of this release as well as on the Company’s website.
Eskay Creek Phase I Drilling Highlights
- 14.02 g/t Au, 707 g/t Ag, 23.45 g/t AuEq over 28.50 m (SK-18-004)
- Including: 33.19 g/t Au, 1,903 g/t Ag, 58.56 g/t AuEq over 10.50 m
- 22.13 g/t Au, 193 g/t Ag, 24.69 g/t AuEq over 11.90 m (SK-18-005)
- Including: 31.33 g/t Au, 278 g/t Ag, 35.03 g/t AuEq over 8.25 m
- 28.97 g/t Au, 15 g/t Ag, 29.17 g/t AuEq over 12.95 m (SK-18-006)
Gold Equivalent (AuEq) was calculated with the formula: Au (g/t) + [Ag (g/t) / 75]. Reported core lengths represent 80-100% of true widths and are supported by well-defined mineralization geometries derived from historical drilling. Length weighted AuEq composites were constrained by geological considerations as well as a calculated 1.0 g/t AuEq assay grade cut-off assuming reasonable prospects for economic extraction via open pit mining methods. Grade capping of individual assays has not been applied to the Au and Ag assays informing the length weighted AuEq composites. Processing recoveries have not been applied to the AuEq calculation and are disclosed at 100% due to a lack of supporting information. Samples below detection limit were nulled to a value of zero.
Phase I Drilling Discussion
The Phase I drilling program on the 21A, 21C and 22 Zones is designed to upgrade Inferred Resources to Indicated Resources in areas with low drill density to allow for future economic analyses and to collect fresh core for a planned metallurgical characterization and testing program. No historical drill core remains for any zones at Eskay Creek. Therefore, new material must be collected for metallurgical evaluations. Overall, the metallurgical program is designed to gather unbiased, representative material that is spatially distributed throughout the various zones that will ultimately be used to optimize future mine planning. Core lengths represent 80-100% of true widths and are supported by well-defined mineralization geometries derived from historical drilling.
The 21A Zone represents a significant portion of the pit constrained resources hosted at Eskay Creek containing Indicated Resources of 207,000 oz AuEq grading 5.9 g/t AuEq and Inferred Resources of 418,000 oz AuEq grading 4.6 g/t AuEq (see Skeena press release dated September 17, 2018).
Phase I drill hole SK-18-004 is the final hole on section 10040N, and demonstrates the strong dip continuity of the Au-Ag mineralization hosted within the 21A Zone having intersected 14.02 g/t Au, 707 g/t Ag, 23.45 g/t AuEq over 28.50 metres, including a higher grade interval associated with the contact mudstone averaging 33.19 g/t Au, 1,903 g/t Ag, 58.56 g/t AuEq over 10.50 metres. In this portion of the 21A Zone, exhalative mineralization hosted within the contact mudstone occurs immediately adjacent to footwall rhyolite hosted mineralization.
A second fence of four drill holes located on section 10060N, also demonstrates the exceptional continuity of the mineralization hosted within the contact mudstone as well as within the rhyolite. Zone geometries on this section differ slightly in that the mudstone and rhyolite hosted mineralization bifurcate down dip as opposed to section 10040N where all mineralization styles form a continuous body. Highlights of this area include SK-18-005 and SK-18-006 which intersected 22.13 g/t Au, 193 g/t Ag, 24.69 g/t AuEq over 11.90 metres and 28.97 g/t Au, 15 g/t Ag, 29.17 g/t AuEq over 12.95 metres respectively within the contact mudstone.
The 21A Zone is currently drill defined over a large area measuring 420 m along strike, 180 m down dip with true widths ranging from 1 to 80 m in thickness.
Additional Drill Rig Mobilized
To expedite the Phase I program, a second drill rig has been mobilized to Eskay Creek and is now being utilized on the 21C Zone.
21A and 21B Zones – Analogous Mineralization Styles
The 21B Zone is geologically and geochemically equivalent to the 21A Zone and accounted for the bulk of mineralization historically mined at Eskay Creek. The 21B Zone occurs as a tabular, stratiform, fault bounded body characterized by well-bedded, reworked sulfides and sulfosalts interbedded with unmineralized, carbonaceous argillite (mudstone). In addition to the extremely high precious metal grades, Eskay Creek as a whole, particularly the 21A and 21B Zones, is distinguished from conventional VMS deposits by the association with elements of the epithermal suite (Sb-Hg±As). Elevated concentrations of Sb-Hg-As in the 21A and 21B Zones are not evenly distributed throughout the zones but rather occur as isolated clusters due to later stage localized, hydrothermal overprinting.
Although the bulk of the mined material was hosted in the contact mudstone, significant unmined mineralization exists in proximal feeder structures in the footwall rhyolites (21C and Pumphouse Zones). These zones differ geochemically from the 21A and 21B Zones in that they contain low levels of Sb-Hg-As as compared to those hosted in the contact mudstone.
21B Zone Historical Reconciliation
Underground mining at Eskay Creek was performed using the drift and fill mining method with run of mine material either milled at site to generate a concentrate or as direct shipping ore (“DSO”), to smelters. Due to the elevated concentrations of Sb-Hg-As in the 21B Zone, smelter penalties were often prevented via blending with slightly less deleterious material hence diluting the penalty elements while maintaining a profitable head …read more
From:: The Korelin Economic Report