Golden Arrow Intersects 310m @ 0.19% Copper in 400m Step-Out Drill Hole at the San Pietro Project, Chile
OTCQB Venture Market (OTCQB): GARWF
- 310.85 m averaging 0.19% Cu, 0.06 g/t Au, 127 g/t Co and 12.2% Fe starting at 186.4m depth (see Table 1, Note 1). This includes:
-
149.6m averaging 0.21% Cu, 0.05 g/t Au, 153 g/t Co and 12.5% Fe starting at 186.4m depth
- Including 19.28m averaging 0.77% Cu, 0.16 g/t Au, 521 g/t Co and 21.7% Fe
-
42.9m averaging 0.26% Cu, 0.14 g/t Au, 104 g/t Co and 13.4% Fe starting at 454.34m depth
- Including 7.95m averaging 0.39% Cu, 0.41 g/t Au, 214 g/t Co and 23.7% Fe.
The three holes reported herein are part of the ~10,000-metre diamond drilling campaign at the San Pietro Iron Oxide-Copper-Gold-Cobalt ("IOCG") Project in
Table 1. Summary of Intervals, Rincones Phase 2 Drilling
[Cu Grade >0.20% or
Hole |
Detail |
From (m) |
To (m) |
Interval |
Cu (%) |
Au |
Co |
Fe (%) |
SP-DDH-27 |
|
62.00 |
67.40 |
5.40 |
0.21 |
0.03 |
91 |
13.4 |
|
188.60 |
198.00 |
9.40 |
0.26 |
0.02 |
45 |
12.8 |
|
|
241.55 |
244.70 |
3.15 |
0.20 |
0.11 |
29 |
9.5 |
|
|
256.00 |
260.00 |
4.00 |
0.35 |
0.18 |
66 |
15.4 |
|
|
265.52 |
266.55 |
1.03 |
2.64 |
0.18 |
41 |
19.5 |
|
SP-DDH-29 |
|
101.40 |
104.62 |
3.22 |
0.16 |
0.04 |
413 |
35.9 |
|
170.00 |
186.40 |
16.40 |
0.02 |
0.03 |
267 |
26.1 |
|
See Note 1 |
186.40 |
497.25 |
310.85 |
0.19 |
0.06 |
127 |
12.2 |
|
|
186.40 |
336.00 |
149.60 |
0.21 |
0.05 |
153 |
12.5 |
|
includes |
186.40 |
205.68 |
19.28 |
0.77 |
0.16 |
521 |
21.7 |
|
and includes |
235.15 |
239.00 |
3.85 |
0.59 |
0.09 |
137 |
14.8 |
|
and includes |
262.00 |
274.00 |
12.00 |
0.21 |
0.05 |
207 |
11.8 |
|
and includes |
287.00 |
336.00 |
49.00 |
0.20 |
0.04 |
117 |
12.1 |
|
|
358.00 |
360.00 |
2.00 |
1.88 |
0.22 |
304 |
17.1 |
|
|
393.15 |
398.60 |
5.45 |
0.40 |
0.09 |
135 |
10.1 |
|
|
431.00 |
436.00 |
5.00 |
0.07 |
0.10 |
236 |
15.6 |
|
|
440.00 |
448.58 |
8.58 |
0.67 |
0.11 |
127 |
17.2 |
|
|
454.35 |
497.25 |
42.90 |
0.26 |
0.14 |
104 |
13.4 |
|
includes |
476.05 |
484.00 |
7.95 |
0.39 |
0.41 |
214 |
23.7 |
|
|
515.75 |
519.00 |
3.25 |
0.26 |
0.03 |
62 |
7.1 |
|
SP-DDH-30 |
|
44.00 |
47.10 |
3.10 |
0.44 |
0.05 |
105 |
28.5 |
|
55 |
75.1 |
20.1 |
0.13 |
0.03 |
172 |
44.3 |
|
Notes: 1. This interval is outside of the nominal cutoff grade used for reporting drill intervals but is considered relevant. 2. 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.
SP-DDH-29
This hole was collared on a small magnetic high anomaly approximately 400m south of the Rincones target, in an area that remains largely untested between Rincones and the Colla target approximately 1km further south-southwest (see Figure 1). SP-DDH-29 was well-mineralized throughout the hole, as shown in Table 1. Mineralization is hosted in a series of magnetite mantos cross-cut by NW-SE trending specularite breccias, crackle breccias and veins of specularite with chalcopyrite and minor pyrite. Modeling indicates that the mantos may be continuous with those drilled in SP-DDH-06, located approximately 400m to the north-northeast, with possible continuity extending to drill hole SP-DDH-20, as shown in the cross-section in Figure 2. The area to the south of the hole, towards the Colla target, remains untested over more than 500 metres.
The Company has adopted a nominal 0.20% Cu cut-off grade for reporting exploration drilling assay results at San Pietro. At that cut-off, the longest interval calculated for this hole is 149.6m averaging 0.21% Cu with 0.05 g/t Au, 153 g/t Co and 12.5% Fe starting at 186.4m depth. However, starting at the same depth the interval of 310.85m averages 0.19% Cu, 0.06 g/t Au, 127 g/t Co and 12.2% Fe. This longer interval further highlights the potential for this area to make a significant contribution to resources at Rincones.
The Company has updated the drill plan for the Phase 2 campaign to complete additional drilling in the area between SP-DDH-29 and SP-DDH-06 to provide sufficient drill density for inclusion of SP-DDH-29 in modelling and resource estimation, as well as on the northwest-southeast trend of the breccias in SP-DDH-29, in order to test for additional expansion potential.
SP-DDH-27
This hole was collared to test the eastern edge of mineralization at Rincones. Multiple short, mineralized, intervals were encountered throughout the hole as shown in Table 1. Mineralization was in veinlets of specularite-chalcopyrite-pyrite plus replacement of magnetite with actinolite. As with most of the drillholes in the northeast part of the Rincones target, there are intervals containing molybdenite (MoS2) in veinlets and in crackle breccias associated with strong potassic feldspar alteration, which can result in highly anomalous Mo assays. Between the reported interval of 241.55 to 244.70 m, two samples of 1 m long each returned assays of 1% Mo, the maximum value for the analytical method used, giving an average of 0.84% Mo for the entire interval in addition to the copper, gold, cobalt and iron shown in Table 1. This was contained within a wider interval between 240 to 260 metres depth that averaged 0.15% Mo as well as 0.13% Cu, 0.06 g/t Au, 37 g/t Co and 12.3 %. Overlimit Mo assays have not been completed.
SP-DDH-30
SP-DDH-28 was abandoned after multiple attempts, due to difficulties with recovery. The hole was recollared 15m to the east and renumbered as SP-DDH-30. The hole continued to test the eastern edge of the Rincones target, north of hole SP-DDH-27 and intersected limited mineralization hosted in magnetite-scapolite breccias and magnetite mantos with scapolite. As with hole SP-DDH-27, it was anomalous in molybdenum with a high interval of 0.08% Mo in a 2 metre sample starting at 60 m depth.
Table 2. Drill Hole Collar Information
[PSAD 56 / UTM Zone 19 S]
Hole |
Easting |
Northing |
Elevation |
Azimuth (˚) |
Dip |
Final Depth (m) |
(˚) |
||||||
SP-DDH-27 |
391604 |
7071745 |
925 |
20 |
-65 |
350 |
SP-DDH-29 |
390764 |
7070899 |
1011 |
20 |
-60 |
556 |
SP-DDH-30 |
391654 |
7071924 |
915 |
20 |
-60 |
215 |
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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