Eskay Mining has several targets Well I'm learning a lot more about the numerous targets that ESK has in the heart of the golden triangle. I have no doubt these guys are onto something really good.
Tet-C10
Tet and C10 were a significant focus of the 2020 field program. Relogging and sampling of historic drill core, reconnaissance mapping, and induced-polarization (IP) investigations were conducted. Historic drilling at C10 intercepted numerous auriferous intervals grading as high as 100 g/t, with numerous intercepts in the 1-10 g/t range. Previous and new surface investigations at Tet show the presence of high-grade Ag sulfosalt mineralization.
Re-examination of historic drill indicates that Tet-C10 are within the volcanic-arc related Betty Creek Formation, as are Jeff, TV, and the lower stratigraphy at SIB. Betty Creek Formation rocks at Tet-C10 is more metamorphosed than further north, however relict primary rock textures and mineralogy, coupled with geochemical analyses have confirmed the intermediate composition and volcanic arc-related nature of host rocks at Tet-C10. Examination of the topographic expression using 3-D modelling shows that Tet-C10 lies along the newly identified east limb of the Eskay anticline, forming a mineralized trend with Jeff and TV to the north.
Induced polarization investigations show chargeability and resistivity anomalies similar in shape, size, and magnitude to those at Jeff, TV; indicating the possible presence of several stratiform mineralized horizons. Mineralization encountered in historic drilling correlates with chargeability anomalies, just as at Jeff and TV. Several chargeability anomalies extend to the south and east beyond historic drilling in areas where past surface sampling has encountered Au and Ag mineralization.
The results summarized above are consistent with Tet-C10 forming a component of the east-limb Eskay anticline trend of VMS deposits along with TV and Jeff.
GFJ
The IP surveys conducted at Tet-C10 extended eastwards to include the GFJ Au-Ag showing. These investigations show chargeability and resistivity anomalies similar in shape, size, and magnitude to those at Tet-C10; indicating the possible presence of several stratiform mineralized horizons. Past surface sampling has indicated the possibility of high-grade Au-Ag mineralization at GFJ. Most of the high-grade surface samples were collected in locations corresponding with chargeability anomalies.
Red Lightning
The 2020 field program included relogging 3 representative drill holes from Red Lightning, RL-3, RL-4, and CR06-86. These holes are characterized by gabbro intruded into contact metamorphosed Betty Creek Formation volcanic arc-related rocks. The gabbro has zones of silicate-sulfide immiscibility with sulfide minerals grading from disseminated to massive. Mineralogy is dominated by pyrrhotite and chalcopyrite, with sphalerite and Ni-sulfides as accessory minerals. The relative age of the gabbro places the intrusion during the period when VMS systems were active, suggesting the gabbro intrusions at E&L and Red Lightning may represent the rift-related magmatic intrusions that drive VMS hydrothermal systems. This possibility is being investigated.
The grades intersected to date are sub-economic (20.4 m at 0.79% Cu, 0.42% Ni and 0.08% Co, including 10 m at 1.03% Cu, 0.55% Ni and 0.10% Co. The Red Lightning area remains prospective given its location along the Au-rich trend from C10-Tet to Spearhead identified by drilling and surface sampling.