In August of 2021 the Company initiated a 220 hole, 2,530m reverse circulation drill program (RC) to define the northern and eastern extension of the gold footprint associated with the CBSZ (see Northern Superior press release, August 24, 2021). Due to wet ground conditions, this program was not completed as planned. However, the program was successful in significantly expanding the gold-footprint of the CBSZ, through:
a) Identifying a third area of gold-mineralized sericite-carbonate alteration north of both the gold-bearing CBSZ (hosting the NI 43-101 compliant resource) and the Croteau Nord Shear Zone (CNSZ) previously defined. This third area defined by:
i. Gold-bearing bedrock chips (highlighted by a gold assay of 0.189 g/t Au);
ii. Bedrock chips characterized by sericite- carbonate alteration (same alteration associated with the CBSZ); and
iii. Pervasive dispersal of gold grain from this third area with at least 7 targets defined by the presence of anomalous, pristine gold grain-in-till values (>25; see Northern Superior press release, January 11, 2022).
b) All primary lithologies associated with the CBSZ, CNSZ and the intervening tuffaceous sediments intersected in this RC program host gold; and
c) Defined at least 9 core drill targets within this expanded gold footprint.
In January of 2022, Northern Superior announced a second RC drill program with a three-fold purpose (see Northern Superior press release, January 11, 2022):
a) Complete the RC program initiated in August 2021 (not completed due to saturated ground conditions) (Figure 6);
b) Refine the targets identified from the 2021 RC program; and
c) Identify any additional targets within the expanded area of this RC program.
Figure 6. Distribution of RC collar locations, 2021 (green) and 2022 (red) programs.
Preliminary results from the winter 2022 RC drill program met the first two of three goals based on bedrock chip lithology and geochemistry data (see Northern Superior press release, January 11, 2022). This new data, combined with the Company’s other data sets (including geophysics, till gold and gold geochemistry-in-till, core drilling, bedrock mapping, structural interpretation and prospecting), provides sufficient confidence in the core drill targets identified from the previous RC program (see Northern Superior press release, January 11, 2022) to drill them.
Taking advantage of the 2022 cold winter conditions and that drill trails and pads are already cut from the last RC program over areas inaccessible in the summer due to wet ground conditions, the Company initiated a core drill program to test at least 6 targets associated with these summer “wet” areas (see Northern Superior press release, March 22, 2022) (Figure 7). The Company may drill more targets if weather conditions permit and has procured the necessary service providers to accommodate between 2,000-5,000m of drilling. Additional drilling may include some of the targeting the Company has developed for the CBSZ to test continuity of eastward plunging high grade gold shoots (see Northern Superior press release, November 13, 2017).
Figure 7. Location of core drill collars and traces planned for the spring 2022 (blue ellipsoids) and summer 2022 (black rectangles) programs.