Golden Arrow Drills 64m of 0.86% Cu, 0.20g/t Au, 196g/t Co & 25.9% Fe at central Rincones Target, San Pietro Project, Chile
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Brian McEwen, VP Exploration and Development for Golden Arrow, commented, "We are thrilled with the results from our first drilling at Rincones. This program was about improving our understanding of the geology and structure of the project so that we could move on to more detailed work, followed by a resource delineation program. We met our original objective at Rincones, confirmed our updated model and found excellent mineralization where we hoped, which is fantastic and means we can move forward quickly with the next program. What's more, the surprises from drilling were all positive, including strong copper and cobalt mineralization in the largely undrilled central area of the target, and generally stronger gold mineralization than anticipated."
The 6 holes drilled in Rincones successfully validated the geological model described previously and in all cases they encountered Cu-Co-Au-Fe mineralization. Holes SP-DDH-07 and -12 confirmed the presence of wide mineralized packages close to surface below 10 to 15 metres of alluvium cover, providing confidence for conducting new exploration at covered targets. Rincones remains the most advanced target of the project and based on the Company's work and interpretation it appears that mineralization is open in all directions. With the information collected from this program, a new 3D geological model is being constructed which will help to define priority targets for the next drilling phase.
Figure 1 is a plan map of the Rincones drill holes, and a full summary of mineralized intervals is shown in Table 1. A summary of the best results follows.
Hole SP-DDH-12 was drilled into the sparsely tested central part of the Rincones target area and tested the depth extent of a newly mapped copper-bearing magnetite outcrop. Results are highlighted by:
- 64.2 m @
0.86% Cu, 0.20 g/t Au, 196 g/t Co and25.9% Fe starting at 42.8m depth, and - 75.0 m @
0.23% Cu, 0.03 g/t Au and 67 g/t Co starting at 243 m depth, followed by a short high-grade Co-Fe interval of 3.3 m @0.22% Cu, 0.05g/t Au, 333 g/t Co and33.37% Fe.
Hole SP-DDH-05, drilled 300 metres southwest of SP-DDH-12 in the southern Rincones area, returned:
- 79.8m @
0.29% Cu, 0.05g/t Au and 179g/t Co, including 15.3m @0.64% Cu, 0.10 g/t Au and 388g/t Co at 272.1m depth.
Figure 2 is the 1200 metre section marked A-B in Figure 1, including holes SP-DDH-05, SP-DDH-11 and SP-DDH-12. It demonstrates the continuity of mineralization and the potential for expansion of mineralization, particularly into the central area, with additional drilling.
Hole SP-DDH-07 filled in a 250-metre gap between historic holes in the northern part of the target. This hole had a best interval of:
- 87.7m @
0.34% Cu, 0.08 g/t Au and 238 g/t Co, starting at 38.2 m depth, with 4 higher grade internal intervals, such as 10.55 m @0.83% Cu, 0.12 g/t Au and 183 g/t Co.
San Pietro is situated adjacent to the
Modeling of drill results from the Phase 1 program and the historic database is underway to refine priority targets for the next drill program of approximately 4,000m, which is expected to commence in September.
The San Pietro Project is hosted by andesite units in a Cretaceous-aged volcano-sedimentary sequence associated with intrusive rocks including granodiorites and diorites of similar age. The Project is located east of the Atacama Fault system, a major north-south regional structure, which was instrumental in controlling the emplacement of the ore deposits in the area.
Mineralization at San Pietro is typical of an iron-oxide, copper, gold ("IOCG") system, with the addition of cobalt, and occurs in breccias, veins and mantos within a zone of K-feldspar-chlorite alteration. These structures are rich in magnetite and specularite and in some cases calcite and are mainly developed along NW-SE lineaments.
Within the 180km2 land package, the Company is focused on the Rincones advanced exploration target for completing an initial mineral resource estimate. This target formed the core of the historic work, with 46 widely spaced holes drilled in an area of approximately 2.6 by 1.6 kilometres, resulting in numerous intervals with significant copper, gold and cobalt*. The historic drill holes were roughly split into a north and south grouping, with a central area that had seen minimal drilling.
In 2022, Golden Arrow's detailed mapping program recognized two small outcrops of magnetite mantos partially covered by alluvium in the central Rincones target area. Mapping of these outcrops helped to develop the model of a sequence of fine and porphyritic andesites with sills of microdiorites interbedded with mantos of magnetite replacing part of the andesites. The entire sequence is dipping approximately 45° to the SW and is cross-cut by NW striking specularite veins and breccias that are interpreted to be feeders of the copper-cobalt mineralization is disseminated in the magnetite mantos. The main objective of the original Phase 1 drill plan at Rincones was to test this model with two drill holes, SP-DDH-05 and SP-DDH-06, both in the southern part of the target area. After logging the core from those holes, the team was satisfied that the model was sound, and four additional holes were added to the program at Rincones. The location of all six drill holes is shown in Figure 1 and Table 1 includes highlights of mineralized intervals. The following is a summary of the geology and mineralization of the six holes.
Drill hole SP-DDH-05 was collared in the area of the best historic copper intercepts, 125 metres west from historic hole RADDH-02, which had a best interval* of 34 metres averaging
SP-DDH-11 encountered the typical sequence seen at Rincones of andesites/microdiorites/magnetite replacement bodies and intercepted multiple well-mineralized intervals from 68 metres to over 400 metres depth. This hole was drilled north of SP-DDH-05, extending the known mineralization by 80 metres in that direction.
Drill Hole SP-DDH-12 was drilled into a previously untested area in the central part of the Rincones target to assess the depth extent of an outcrop of magnetite manto. This outcrop was unmapped and unsampled prior to Golden Arrow's 2022 work, from which a grab sample returned assays of
The success of hole SP-DDH-12 is considered highly significant as it confirms the prospectivity for identifying significant mineralization in an area that has seen little previous drilling between the northern and southern portions of the Rincones target. The section in Figure 2 illustrates the magnetite-replaced mantos and mineralization encountered in holes SP-DDH-05, SP-DDH-11 and SP-DDH-12 across approximately 300 metres.
Drill hole SP-DDH-06 was collared 370 metres southeast of SP-DDH-05, in an area with a lower concentration of historic drilling. This hole intercepted the same typical sequence seen at Rincones and again confirmed the proposed model held up in this area. This hole was not as well mineralized as the others drilled in this phase, but copper was hosted in the microdiorites and andesites in the form of veinlets of specularite-chalcopyrite-pyrite.
Within the northern grouping of historic drill holes at Rincones a gap of 230 m was identified between two well-mineralized holes. Phase 1 drill hole SP-DDH-07 was collared to test the area between hole RA12DH-009 and hole RARC-17, the latter of which had results including 36 metres with
The final hole of the program, SP-DDH-13, was collared 110 metres east of the known mineralization in the northeast part of the Rincones target. This hole confirmed the continuity of magnetite replaced bodies within the andesitic sequence (between 70 and 79 metres depth) and at the contact with the microdiorite (from 165 to 179 metres depth). Adjacent to the second manto a crackle breccia welded with specularite that included disseminated chalcopyrite and pyrite was observed from 157 to 165 metres depth.
Table 1. Highlights of Drill Intervals, Rincones Target
[Cu Grade >
Hole | From (m) | To (m) | Interval (m) | Cu | Au (g/t) | Co | Fe (%) | |
SP-DDH-05 | 51.00 | 59.00 | 8.00 | 0.17 | 0.08 | 161 | 38.53 | |
73.00 | 77.00 | 4.00 | 0.28 | 0.03 | 124 | 8.93 | ||
81.00 | 91.00 | 10.00 | 0.25 | 0.04 | 104 | 12.95 | ||
100.50 | 105.60 | 5.10 | 0.17 | 0.03 | 141 | 35.42 | ||
161.00 | 170.60 | 9.60 | 0.30 | 0.05 | 86 | 13.21 | ||
194.00 | 201.00 | 7.00 | 0.37 | 0.01 | 45 | 12.28 | ||
210.00 | 212.00 | 2.00 | 0.30 | 0.04 | 172 | 17.25 | ||
220.00 | 227.00 | 7.00 | 0.34 | 0.04 | 86 | 13.48 | ||
236.00 | 247.00 | 11.00 | 0.04 | 0.02 | 248 | 41.65 | ||
255.00 | 259.00 | 4.00 | 0.68 | 0.05 | 173 | 22.40 | ||
264.44 | 272.15 | 7.71 | 0.09 | 0.04 | 353 | 22.39 | ||
272.15 | 352.00 | 79.85 | 0.29 | 0.05 | 179 | 16.22 | ||
includes | 272.15 | 287.50 | 15.35 | 0.64 | 0.10 | 388 | 22.68 | |
includes | 321.05 | 322.85 | 1.80 | 1.28 | 0.16 | 791 | 38.28 | |
415.00 | 434.00 | 19.00 | 0.31 | 0.04 | 83 | 24.21 | ||
SP-DDH-06 | 19.15 | 22.6 | 3.45 | 0.21 | 0.03 | 42 | 12.19 | |
131.80 | 139.45 | 7.65 | 0.01 | 0.01 | 344 | 35.66 | ||
148.80 | 160.50 | 11.70 | 0.11 | 0.02 | 232 | 43.59 | ||
179.00 | 181.13 | 2.13 | 0.22 | 0.01 | 20 | 13.93 | ||
283.85 | 295.50 | 11.65 | 0.22 | 0.01 | 47 | 10.34 | ||
306.00 | 309.40 | 3.40 | 0.20 | 0.11 | 34 | 7.92 | ||
SP-DDH-7 | 24.00 | 38.25 | 14.25 | 0.20 | 0.04 | 88 | 14.1 | |
38.25 | 126.00 | 87.75 | 0.34 | 0.08 | 238 | 15.89 | ||
includes | 38.25 | 48.80 | 10.55 | 0.83 | 0.12 | 183 | 18.2 | |
includes | 85.50 | 90.56 | 5.06 | 0.70 | 0.13 | 303 | 18.02 | |
includes | 90.56 | 98.50 | 7.94 | 0.37 | 0.18 | 730 | 24.05 | |
includes | 105.50 | 116.46 | 10.96 | 0.50 | 0.14 | 346 | 18.91 | |
177.42 | 178.70 | 1.28 | 1.31 | 0.11 | 125 | 20.2 | ||
225.17 | 228.00 | 2.83 | 0.01 | 0.16 | 787 | 24.59 | ||
244.00 | 249.88 | 5.88 | 0.05 | 0.06 | 325 | 18.08 | ||
345.54 | 349.00 | 3.46 | 0.01 | 0.06 | 298 | 21.97 | ||
SP-DDH-11 | 68.00 | 72.47 | 4.47 | 0.29 | 0.04 | 98 | 14.37 | |
83.00 | 88.00 | 5.00 | 0.53 | 0.07 | 149 | 15.91 | ||
108.50 | 113.00 | 4.50 | 0.28 | 0.08 | 297 | 14.61 | ||
128.00 | 136.60 | 8.60 | 0.31 | 0.14 | 144 | 13.26 | ||
174.00 | 179.00 | 5.00 | 0.22 | 0.03 | 42 | 13.07 | ||
193.74 | 200.15 | 6.41 | 0.09 | 0.08 | 452 | 48.83 | ||
200.15 | 207.00 | 6.85 | 0.30 | 0.03 | 66 | 13.29 | ||
236.70 | 244.00 | 7.30 | 0.38 | 0.04 | 108 | 17.70 | ||
247.65 | 250.00 | 2.35 | 0.37 | 0.01 | 21 | 10.22 | ||
337.00 | 340.90 | 3.90 | 0.34 | 0.03 | 65 | 23.58 | ||
359.00 | 365.19 | 6.19 | 0.36 | 0.05 | 68 | 12.93 | ||
381.28 | 390.00 | 8.72 | 0.25 | 0.02 | 139 | 14.79 | ||
424.00 | 426.00 | 2.00 | 0.40 | 0.03 | 37 | 10.23 | ||
SP-DDH-12 | 42.78 | 107.00 | 64.22 | 0.86 | 0.20 | 196 | 25.90 | |
includes | 65.00 | 82.80 | 17.80 | 1.45 | 0.37 | 303 | 25.04 | |
includes | 84.35 | 103.12 | 18.77 | 0.91 | 0.20 | 257 | 42.50 | |
130.05 | 151.34 | 21.29 | 0.20 | 0.03 | 80 | 14.77 | ||
152.55 | 157.50 | 4.95 | 0.38 | 0.12 | 730 | 42.53 | ||
168.00 | 181.00 | 13.00 | 0.14 | 0.03 | 117 | 37.31 | ||
225.55 | 230.60 | 5.05 | 0.43 | 0.06 | 96 | 14.88 | ||
243.00 | 318.00 | 75.00 | 0.23 | 0.03 | 67 | 11.9 | ||
includes | 243.00 | 251.00 | 8.00 | 0.34 | 0.05 | 95 | 12.33 | |
includes | 258.56 | 267.10 | 8.54 | 0.43 | 0.06 | 114 | 16.09 | |
includes | 303.00 | 312.50 | 9.50 | 0.44 | 0.03 | 60 | 10.57 | |
320.00 | 323.32 | 3.32 | 0.22 | 0.05 | 333 | 33.37 | ||
361.00 | 364.00 | 3.00 | 0.29 | 0.03 | 244 | 8.05 | ||
371.80 | 377.00 | 5.20 | 0.37 | 0.06 | 86 | 13.43 | ||
381.00 | 385.00 | 4.00 | 0.21 | 0.05 | 84 | 10.29 | ||
SP-DDH-13 | 70.43 | 79.26 | 8.83 | 0.55 | 0.16 | 383 | 35.77 | |
84.60 | 91.00 | 6.40 | 0.23 | 0.01 | 30 | 11.38 | ||
157.00 | 165.11 | 8.11 | 0.28 | 0.03 | 61 | 11.09 | ||
165.11 | 170.00 | 4.89 | 0.08 | 0.03 | 254 | 37.73 | ||
175.00 | 180.80 | 5.80 | 0.05 | 0.01 | 279 | 24.48 | ||
203.26 | 205.30 | 2.04 | 0.95 | 0.07 | 315 | 18.58 | ||
Intervals are downhole length; true width to be confirmed with geologic modelling. |
Table 2. Drill Hole Collar Information, Rincones Target
[PSAD 56 / UTM Zone 19 S]
Hole | Easting | Northing | Elevation | Azimuth | Dip (˚) | Final |
SP-DDH-05 | 390654 | 7071480 | 993 | 40 | -70 | 486.95 |
SP-DDH-06 | 390913 | 7071223 | 984 | 20 | -65 | 379.95 |
SP-DDH-07 | 390825 | 7072185 | 1029 | 205 | -65 | 397.95 |
SP-DDH-11 | 390682 | 7071555 | 1014 | 40 | -60 | 444.30 |
SP-DDH-12 | 390910 | 7071650 | 960 | 40 | -60 | 527.00 |
SP-DDH-13 | 391866 | 7072045 | 859 | 20 | -75 | 230.05 |
*See Golden Arrow News Release dated March 17, 2022 for additional details and highlights of historic drill results. This drilling was carried out by previous operators and has not yet been independently verified by the Company's Qualified Person. Reported intervals are core lengths and true thickness has not been estimated at this time. |
This drilling campaign was completed by Superex SA of
The
The project hosts multiple targets with significant IOCG mineralization, and historic drilling encountered high grades of the strategic metals copper and cobalt in numerous holes (see News Release dated March 17, 2022). The potential for new zones of mineralization, combined with a central location in a new copper-cobalt district, makes San Pietro the flagship project for value creation in Golden Arrow's portfolio.
The exploration programs are designed by the Company's geological staff and results are reviewed, verified (including sampling, analytical and test data) and compiled under the supervision of Brian McEwen, P.Geol., VP Exploration and Development to the Company. Mr. McEwen is a Qualified Person as defined in National Instrument 43-101 and has reviewed and approved the contents of the news release.
Golden Arrow Resources Corporation is a mining exploration company with a successful track record of creating value by making precious and base metal discoveries and advancing them into exceptional deposits. The Company is well leveraged to the price of gold, having monetized its Chinchillas silver discovery into a significant holding in precious metals producer SSR Mining Inc.
Golden Arrow is actively exploring the advanced San Pietro Cu-Au-Co project in
The Company is a member of the Grosso Group, a resource management group that has pioneered exploration in
ON BEHALF OF THE BOARD
"Joseph Grosso"
_______________________________
Mr. Joseph Grosso,
Executive Chairman, President and CEO
Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.
This news release may contain forward-looking statements. Forward-looking statements address future events and conditions and therefore involve inherent risks and uncertainties. All statements, other than statements of historical fact, that address activities, events or developments the Company believes, expects or anticipates will or may occur in the future, including, without limitation, statements about the Company's plans for its mineral properties; the Company's business strategy, plans and outlooks; the future financial or operating performance of the Company; and future exploration and operating plans are forward-looking statements.
Forward-looking statements are subject to a number of risks and uncertainties that may cause the actual results of the Company to differ materially from those discussed in the forward-looking statements and, even if such actual results are realized or substantially realized, there can be no assurance that they will have the expected consequences to, or effects on, the Company. Factors that could cause actual results or events to differ materially from current expectations include, among other things: the impact of COVID-19; risks and uncertainties related to the ability to obtain, amend, or maintain licenses, permits, or surface rights; risks associated with technical difficulties in connection with mining activities; and the possibility that future exploration, development or mining results will not be consistent with the Company's expectations. Actual results may differ materially from those currently anticipated in such statements. Readers are encouraged to refer to the Company's public disclosure documents for a more detailed discussion of factors that may impact expected future results. The Company undertakes no obligation to publicly update or revise any forward-looking statements, unless required pursuant to applicable laws.
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SOURCE Golden Arrow Resources Corporation