Golden Arrow Continues to Intersect Thick Zones of Copper and of Cobalt Mineralization at the San Pietro Iron-Copper-Gold-Cobalt Project, Chile
OTCQB Venture Market (OTCQB): GARWF
-
110m at 0.40% Cu, 0.08 g/t Au, 85 g/t Co and 18.0% Fe starting at 158 m depth.
- Includes 1.12m at 10.35% Cu, 2.44 g/t Au, 470 g/t Co and 23.1% Fe
Figure 2 shows the projection of this thick mineralized interval to the surface and demonstrates the correlation and continuity with intervals in two parallel holes across a distance of more than 290 metres through the central Rincones target area. Of note is the high-grade copper and gold intercept, reported above, that occurs within the longer-mineralized interval. Intervals of higher grade were also noted within one of the parallel holes and additional exploration is needed to fully understand the potential of these to contribute to a lower high-grade zone within a future resource estimate.
Approximately two kilometres southwest of Rincones, drilling at the Colla target cut a long interval with high cobalt starting close to surface, marking the best cobalt interval at the project to date:
-
123.1m at 443 g/t Co starting at 24.9 m depth in drill hole SP-DDH-25.
- Includes 19.43 m at 790 g/t Co and 32.6 % Fe
The six holes reported herein are part of the on-going 10,000-metre diamond drilling campaign at the San Pietro Iron-Copper-Gold-Cobalt Project in
Table 1. Summary of Intervals, Rincones Phase 2 Drilling
[Cu Grade >0.20% or
Hole |
|
From |
To (m) |
Interval |
Cu (%) |
Au |
Co |
Fe (%) |
SP-DDH-21 |
|
14.00 |
19.00 |
5.00 |
0.34 |
0.05 |
46 |
13.7 |
|
95.00 |
119.31 |
24.31 |
0.23 |
0.08 |
298 |
21.3 |
|
|
148.00 |
154.00 |
6.00 |
0.34 |
0.04 |
66 |
9.4 |
|
|
163.50 |
177.62 |
14.12 |
0.27 |
0.07 |
60 |
15.7 |
|
|
222.00 |
226.00 |
4.00 |
0.24 |
0.01 |
33 |
9.5 |
|
|
289.73 |
293.00 |
3.27 |
0.09 |
0.02 |
263 |
13.8 |
|
|
295.00 |
303.00 |
8.00 |
0.56 |
0.07 |
160 |
7.2 |
|
|
329.00 |
353.00 |
24.00 |
0.04 |
0.08 |
439 |
10.6 |
|
|
358.00 |
366.00 |
8.00 |
0.06 |
0.05 |
315 |
31.6 |
|
|
386.00 |
402.00 |
16.00 |
0.02 |
0.07 |
345 |
10.2 |
|
|
408.00 |
419.60 |
11.60 |
0.32 |
0.03 |
89 |
7.0 |
|
|
443.44 |
446.50 |
3.06 |
0.28 |
0.04 |
94 |
8.8 |
|
SP-DDH-22 |
|
22.00 |
32.00 |
10.00 |
0.21 |
0.05 |
93 |
10.2 |
|
104.35 |
111.53 |
7.18 |
0.95 |
0.08 |
78 |
12. |
|
|
158.00 |
268.00 |
110.00 |
0.40 |
0.08 |
85 |
18.0 |
|
including |
216.00 |
232.90 |
16.90 |
1.38 |
0.20 |
210 |
16.8 |
|
with |
231.78 |
232.90 |
1.12 |
10.35 |
2.44 |
470 |
23.1 |
|
and including |
258.00 |
268.00 |
10.00 |
0.22 |
0.05 |
192 |
47.0 |
|
|
326.00 |
328.00 |
2.00 |
1.35 |
0.16 |
176 |
15.8 |
|
SP-DDH-23 |
|
133.11 |
137.87 |
4.76 |
2.56 |
1.04 |
317 |
27.5 |
|
172.63 |
180.00 |
7.37 |
0.25 |
0.02 |
68 |
11.3 |
|
SP-DDH-24 |
|
151.45 |
156.85 |
5.40 |
0.25 |
0.03 |
140 |
12.8 |
SP-DDH-25 |
|
24.90 |
148.00 |
123.10 |
0.03 |
0.04 |
443 |
18.2 |
including |
26.00 |
44.70 |
18.70 |
0.06 |
0.06 |
721 |
23.1 |
|
and including |
126.57 |
146.00 |
19.43 |
0.02 |
0.10 |
790 |
32.6 |
|
|
169.88 |
172.20 |
2.32 |
0.03 |
0.07 |
453 |
16.2 |
|
SP-DDH-26 |
|
156.00 |
157.37 |
1.37 |
0.46 |
0.04 |
151 |
10.9 |
Notes: Intervals are downhole length. See hole descriptions in text for additional details. |
San Pietro Phase 2 Drill Program Details
In 2023, the Company completed a Phase 1 drill program of approximately 4000 metres of diamond drilling in 13 holes to add to the database of ~34,000 metres of historic drilling at San Pietro. Strongly mineralized intervals were intercepted at all targets tested as reported in company news releases on
The Company is concentrating this Phase 2 drill program mainly on the Rincones advanced exploration target with the goal of completing an initial Mineral Resource Estimate. In addition, approximately 3,000 metres of drilling has been earmarked to test for new mineralization at other high-potential target areas throughout the Project.
Rincones Target Drilling
SP-DDH-21
SP-DDH-21 was drilled in a gap at the western side of the central Rincones target and successfully increased the known mineralization between the better-defined Rincones north and south areas.
The hole was a 260 metre step-out to the northeast of Phase 1 hole SP-DDH-11, which was reported on
Copper-cobalt-iron mineralization in SP-DDH-21 is associated with strong quartz-scapolite alteration in crackle breccias and massive magnetite. Breccias with up to 6% of pyrite show high cobalt mineralization as seen in the reported intervals between 289 and 402 metres in Table 1.
SP-DDH-22
This hole confirms the continuity of mineralization between Phase II drill holes SP-DDH-14 (135 m to the west) and SP-DDH-19 (155 m to the east) as shown in Figure 2. SP-DDH-22 shows a wide mineralized interval of 110 m starting at 158 m deep, (see Table 1) including a higher-grade interval of 1.12 m with 10.35% Cu, 2.44 g/t Au, 132 g/t Co and 25.7% Fe where the core contained patches of massive chalcopyrite-pyrite. This long interval correlates with the 101.38-metre mineralized interval reported in drill hole SP-DDH-19 that averaged 0.43% Cu, 177 g/t Co and 30.1% Fe which also includes a higher-grade interval of 5.0m with 1.3% Cu; 0.29 g/t Au, 253 g/t Co and 27.4% Fe (see News Release dated
In addition, anomalous molybdenum values were noted in both SP-DDH-19 and SP-DDH-22. The 110 mineralized metres starting at 158 m deep in hole SP-DDH-22 averaged 139 g/t Mo, and core logging noted the presence of veinlets of molybdenite. In SP-DDH-19 the 101.38 metre interval noted above averaged 147 g/t Mo. The importance of this molybdenum mineralization is under evaluation, but it is present in most of the drillholes in the eastern part of the Rincones target.
SP-DDH-23, SP-DDH-24 and SP-DDH-26
These three drillholes were drilled in the northern and eastern part of Rincones testing the edge of a large magnetic anomaly that has guided much of the recent drilling. Results confirm the strong association between the high magnetics and mineralization. Drill hole SP-DDH-23 intercepted one high-grade interval of 4.76 m with 2.56% Cu, 1.04 g/t Au, 317 g/t Co and 27% Fe, with strong replacement of the andesite by magnetite and with chalcopyrite and pyrite both disseminated and in veinlets. Hole SP-DDH-24, drilled to south, intercepted several veins and breccias with specularite-calcite-quartz-chalcopyrite. Finally, drillhole SP-DDH-26 shows weak scapolite-quartz alteration and some specularite breccias with limited copper mineralization.
Colla Target Drilling
SP-DDH-25
This hole was drilled 160 m north of SP-DDH-09. The objective was to test the continuity of mineralization in specularite breccias drilled in SP-DDH-09, which returned an interval of 11.25m averaging 483 g/t Co starting at 130.55m depth (see News Release
Table 2. Drill Hole Collar Information
[PSAD 56 / UTM Zone 19 S]
Hole |
Easting |
Northing |
Elevation |
Azimuth (˚) |
Dip |
Final |
(˚) |
||||||
SP-DDH-21 |
390809 |
7071811 |
996 |
40 |
-60 |
461 |
SP-DDH-22 |
391267 |
7071769 |
943 |
20 |
-65 |
341 |
SP-DDH-23 |
391466 |
7072416 |
923 |
20 |
-70 |
208.9 |
SP-DDH-24 |
391465 |
7072386 |
923 |
200 |
-68 |
353 |
SP-DDH-25 |
390119 |
7069878 |
1127 |
270 |
-60 |
185 |
SP-DDH-26 |
391442 |
7071603 |
923 |
20 |
-65 |
261.5 |
Methodology & QA/QC
This drilling campaign was completed by Sociedad de Servicios Andinos SpA of Copiapó, Chile, using diamond drill producing HQ-sized core. The Golden Arrow field team, supervised by senior geologists, photographed and logged the entire length of core for each drillhole, as well as measured it for recovery and marked it for sampling. Pieces of whole core approximately 10 to 15 cm long were selected and measured for specific gravity on average every 20 metres and targeting all different lithologies. Subsequently, the core was cut in half with an electric saw. One half was labelled, bagged and sent for analysis and the other half retained onsite. After completing the sampling of each hole, the samples were shipped to
About the
The 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 IOCG system, with the addition of cobalt, and occurs in mantos, breccias and veins within a zone of alteration characterized by an association of actinolite, epidote, chlorite and scapolite. The mantos are replacement of andesite by magnetite and sulphides, with a roughly southeast strike and a gentle dip to the SW. Breccias and veins crosscut the mantos, are often subvertical, and filled with specularite and sulphides.
Qualified Persons
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
About Golden Arrow:
Golden Arrow is actively exploring its flagship property, the advanced San Pietro iron oxide-copper-gold-cobalt project in
The Company is a member of the
ON BEHALF OF THE BOARD
"Joseph Grosso"
_______________________________
Mr.
Executive Chairman, President and CEO
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