Silver Spruce Resources Inc., with its partner Colibri Resources Corp. (“Colibri”), announces further promising intersections of gold, silver and base metals from near-surface to 75 metres depth in the first shallow R/C drilling program on the Diamante project (“Diamante” or the “Property”) which has had no prior drilling history.
Ten (10) holes were drilled in the 2,006-metre (“m”) program at the La Prieta (10) Au-Ag-Pb-Zn-Cu targets (Figures 1, 2 and 3, Tables 1 and 2). The highest-grade samples returned from La Prieta drilling include 12.75% Zn, 5.6 % Pb, 239 g/t Ag, and 5.62 g/t Au. All holes intersected mineralization with intersection lengths ranging from 1.5 m to 13.5 and with variable metal abundances and ratios. Highlights of the results include:
2.48 grams per tonne (“g/t”) Au + 56.7 g/t Ag over an intersection length of 9.0 m 1.76% Zn + 38.5 g/t Ag + 0.56 g/t Au over an intersection length of 13.5 m 1.61% Zn + 38.5 g/t Ag + 0.63 g/t Au over an intersection length of 10.5 m
“We are pleased to report on the latest assay data from our maiden exploration drilling program on two highly prospective areas of Diamante. Our second target, La Prieta, exhibited significant intervals of Pb and Zn sulphide mineralization up to a combined 18.35 wt.% Pb+Zn, with elevated Ag and Au, in variably altered andesite and rhyolite locally with shear/fault controls, comprising polymetallic vein-style occurrences within and adjacent to historical artisanal mining,” stated Greg Davison, Silver Spruce Vice-President Exploration and Director.
“Quantitative assays identified from one to four sulphide-bearing zones per hole consistent with pXRF analyses conducted during the drill program. Anomalous values of pathfinder elements including As, Cd, Cu, Hg and Sb were verified,” Mr. Davison added. “The initial drilling confirmed that the indicated La Prieta mine target, both in shallow intersections and at depth, and given the promising metal grades, particularly in DIA22-17, warrants further work programs for the polymetallic, intermediate sulphidation mineralization. Stemming from these promising results, the Companies are discussing the scope and timing for next phase of exploration. Other high priority targets at Calton, Aguaje, El Chon, Mezquite Raizudo and several others also await boots on the ground-based activities.”
Figure 2. Orthophoto of La Prieta target on Diamante 1 showing DIA22-10 to DIA22-19 with projections of subsurface extent. Adit located on south-facing exposure south of DIA22-18. Northwesterly and E-W-trending faults and northeasterly vein targets exhibiting Au-Ag-Cu-Pb-Zn mineralization with intense alteration. Anomalous multi-element geochemical values shown in graduated symbols. 1:1,000 scale.
Table 2. Summary of 2022 Drilling Program at La Prieta target on Diamante Project
Ten R/C holes were completed at La Prieta, all of which are oriented to intersect depth projections of known surface and shallow underground workings, stockwork zones and traces of surface lineaments associated with mineralized occurrences. The drill holes were inclined between -55˚ and -75˚ and drilled to depths ranging from 72 metres to 126 metres.
Figure 3. Looking eastward, Minera Drilling on DIA22-10 at PAD #7 above and northwest of the historical mine workings at La Prieta target.
Four holes (DDH22-10 to DDH22-13), two which collared northwest of the adit targeted deeper projections of the mineralization observed in the underground workings and two which were drilled from the northwest in a southeasterly and southerly direction toward the western extension of the known mineralization and several near-surface showings. Four holes at La Prieta (DDH22-16 to DDH22-19) were located north of the adit and targeted NE-trending, steeply-dipping mineralization beyond the underground workings. The other two holes (DDH22-14 to DDH22-15), drilled to the south and south-southeast, were proposed to test more distant western extensions accompanied by minor surface pits and exposures.
Samples were screened using pXRF analyses during the on-site logging to provide rapid qualitative data for dynamic decision-making on drill hole planning and depth targeting. pXRF anomalies were based on 90th and 95th percentiles for Ag, Pb, Zn, As, Ba, Cu, Cd, Bi, Sb and Sr values. Compilation of the full ALS data package with the pXRF analyses identified a strong linear relationship for selected metals and pathfinders which will now be applied both to drilling cost optimization and sample selection protocols for the future Diamante drill programs.
(Source: Press Releases – www.silverspruceresources.com/news/news-releases/silver-spruce-and-colibri-intersect-au-to-5.62-g-t-and-ag-to-239-g-t-in-polymetallic-vein-mineralization-at-la-prieta-target-at/)
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