Expands Known Mineralization at Columba Project Chihuahua, Mexico: Highs to 3,090 gpt Silver and 1.1% Lead-Zinc
Drill Highlights include;
See links to plan map, of D Vein, B vein, and cross sections
Hole CDH-24-174
- Hit three significant composited intervals including a broad mineralized 41.2 meters long envelope within the B-B2 Vein corridor.
Third Zone – B2-Vein extension of Historically mined F Vein- 233 gpt silver, 0.1% lead and 0.3% zinc over 41.2 meters core length (27.60 meters e.t.w) includes;
- 1,100 gpt silver, 0.35% lead and 0.34% zinc over 4.0 meters of core length (2.68 meters e.t.w.) and,
- 3,090 gpt silver, 0.9% lead and 0.2% zinc over 1.1 meters core length (0.74 meters e.t.w.)
Second Zone – Possible new vein parallel to B Vein- Possible new parallel vein to B also hit in holes CDH-21-111 and 112 with values to 434 gpt silver, 0.14% lead and 0.22% zinc over 13.05 meters including 7 meters (both drilled length) of 719 gpt silver and 0.28% lead and 0.24% zinc (see news release
December 6 , 2021). - 99 gpt silver, 0.1 % zinc over 6 meters core length (4.20 meters e.t.w) includes;
- 533 gpt silver, 0.1% zinc over 0.3 meters of core length (0.21 meters e.t.w.)
- Possible new parallel vein to B also hit in holes CDH-21-111 and 112 with values to 434 gpt silver, 0.14% lead and 0.22% zinc over 13.05 meters including 7 meters (both drilled length) of 719 gpt silver and 0.28% lead and 0.24% zinc (see news release
First Zone – Unnamed Hangingwall Vein- 104 gpt silver, 0.1 % zinc over 7 meters core length (4.90 meters estimated true width ("e.t.w")
Hole CDH-24-175
- An aggressive 130 meter step out down dip of CDH-22-125 (9.7 meters of 1,746 gpt silver see news release
September 8, 2022 ) hits the D vein structure leaving it open to depth. - Hit a wide 12 meter cavity (vug) at the projection of the D vein structure
- The vein was removed by dissolution (acidic mineralizing fluids) indicating it was a calcite vein and remains open to depth.
- Core on either side of the cavity is anomalous in silver and base metals in veinlet stockworks and narrow base metal bands to 12% zinc.
- Possible new vein in hangingwall of D Vein grading 270 gpt silver, 0.2% lead and 0.7% zinc over 8 meters (3.42 meters e.t.w.)
Hole CDH-24-017
- I-Vein intercept represents the deepening of previous hole CDH-19-017. The original hole had intersected mineralized veining at bottom of hole when it encountered old mine workings. At the time it was considered risky to continue and drilling was abandoned. The new hole was designed to cross the workings and continue into the footwall. Link to Plan Map of D, I, F vein location
- Intersected 25.44 meters of continuous silver mineralization less 1.55 meters of old mine workings.
- Historical interval
- 146 gpt, 0.1% lead and 0.2% zinc over 5.4 meters core length (4.47 meters e.t.w) from 112 meters downhole (news release
Sept. 25 , 2019).
- 146 gpt, 0.1% lead and 0.2% zinc over 5.4 meters core length (4.47 meters e.t.w) from 112 meters downhole (news release
- 2024 interval
- 159 gpt, 0.1% lead and 0.4% zinc over 10.22 meters core length (8.47 meters e.t.w) from 118.95 meters downhole includes;
- 513 gpt silver, 0.6% lead, 1.7% zinc over1.0 meters core length (0.82 meters e.t.w.) from 282.11 meters downhole
- Combined 25 meter interval including 1.55 meters using nil grade.
- 25.17 meters of 102 gpt silver, 0.1% lead and 0.2% zinc
"Check out these photos of some silver in native form (link to pictures) observed in the core of hole 174.".
Current batch of drill results from drill holes CDH-24-174 to 176 in addition to an extension of historical drillhole CDH-19-017 are tabulated below.
Hole ID |
From |
To |
Interval |
Est1 |
Silver |
Pb |
Zn% |
Geologic Intersection |
CDH-19-0172 |
104 |
117.4 |
13.40 |
11.11 |
71 |
0.0 |
0.1 |
I Vein |
including |
112 |
117.4 |
5.40 |
4.47 |
146 |
0.1 |
0.2 |
I Vein |
including |
114.92 |
117.4 |
2.48 |
2.05 |
212 |
0.2 |
0.3 |
I Vein |
and |
117.4 |
118.95 |
1.55 |
- |
- |
- |
- |
Mine working |
CDH-24-017 |
118.95 |
129.17 |
10.22 |
8.47 |
159 |
0.14 |
0.38 |
I Vein |
including |
120.17 |
121.17 |
1.00 |
0.82 |
513 |
0.60 |
1.67 |
I Vein |
CDH-24-174 |
194 |
201 |
7.00 |
4.90 |
104 |
0.0 |
0.1 |
Unnamed Vein and stockwork |
and |
240 |
246 |
6.00 |
4.20 |
99 |
0.0 |
0.1 |
Unnamed Vein and stockwork |
including |
242.3 |
242.6 |
0.30 |
0.21 |
533 |
0.0 |
0.1 |
Unnamed Vein and stockwork |
and |
296.8 |
338 |
41.20 |
27.6 |
233 |
0.1 |
0.3 |
B Vein corridor incl stockwork |
Including |
324.0 |
328.0 |
4.00 |
2.68 |
1,100 |
0.4 |
0.3 |
B2 (F) VEIN |
including |
325.1 |
326.2 |
1.10 |
0.74 |
3,090 |
0.9 |
0.2 |
B2 (F) VEIN |
CDH-24-175 |
229 |
237 |
8.00 |
3.42 |
270 |
0.2 |
0.7 |
HW Vein on D VEIN trend |
and |
432 |
444 |
12.00 |
5.14 |
- |
- |
- |
Dissolution Cavity "D VEIN" |
CDH-24-176 |
214 |
219 |
5.00 |
3.35 |
154 |
0.0 |
0.1 |
Unnamed Vein parallel to B2 |
including |
216 |
217 |
1.00 |
0.66 |
496 |
0.1 |
0.1 |
Unnamed Vein parallel to B2 |
and |
243 |
244 |
1.00 |
0.66 |
278 |
0.0 |
0.2 |
Unnamed Vein parallel to B2 |
and |
258 |
259 |
1.00 |
0.66 |
114 |
0.0 |
0.1 |
Possible projection of B2 Vein |
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1 Estimated true widths are based on current interpretation of mineralized structures. |
2
Previously reported |
The results above represent several important vein targets.
Hole CDH-24-174 was drilled on the B-Vein trend and intercepted several mineralized intervals including a broad 41.2 meters long zone containing a 4.0 meter of high-grade vein. This vein modelled as vein "B2" is now understood by
Hole CDH-24-175 was an aggressive test deep below existing intercepts of D-Vein and encountered an unexpected yet well mineralized 8 meters long interval of hangingwall vein on its way to target depth. At target depth, 432 meters downhole, a 12 meters long cavity was encountered, flanked by residual calcite with anomalous lead and zinc values. This cavity is interpreted as the D-Vein structure, though in the location drilled the carbonate dominant vein had largely been removed by natural processes likely acidic mineralizing fluids. Thus the D vein remains open at depth with excellent width.
Hole CDH-24-176 was drilled on the B Vein trend and encountered a wide, 46 meters long zone of continuous mineralization containing three sub intervals of higher grades representing two intervals of hanging wall veins and a possible intercept of F-Vein.
Parallel Vein to B2
Two occurrences of hanging wall mineralization related to Qtz-Barite veining were encountered in the upper portions of holes CDH-24-174 and 175. These intervals correlate to intercepts encountered and reported previously in holes CDH-21-111 and 112 (originally reported in News Release dated
Table showing current Intercepts of new hangingwall vein above B2
Hole ID |
From (meters) |
To (meters) |
Interval (meters) |
Est1 true |
Silver gpt |
Pb % |
Zn% |
Geologic Intersection |
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CDH-24-174 |
240 |
246 |
6 |
4.20 |
99 |
0 |
0.1 |
Hangingwall Vein parallel to |
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INCLUDING |
242.3 |
242.6 |
0.3 |
0.21 |
533 |
0 |
0.1 |
Hangingwall Vein parallel to |
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CDH-24-176 |
214 |
219 |
5 |
3.35 |
154 |
0 |
0.1 |
Hangingwall Vein parallel to |
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INCLUDING |
216 |
217 |
1 |
0.66 |
496 |
0.1 |
0.1 |
Hangingwall Vein parallel to |
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PREVIOUSLY REPORTED INTERVALS |
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CDH-21-111 |
155.71 |
161 |
5.29 |
3.7 |
105 |
0.04 |
0.06 |
Rhyolite with tiny quartz stockwork & Quartz -barite veins & veinlets |
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INCLUDING |
157.85 |
160 |
2.15 |
1.5 |
190 |
0.07 |
0.1 |
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INCLUDING |
157.85 |
158.5 |
0.65 |
0.46 |
387 |
0.19 |
0.12 |
Hangingwall Vein parallel to |
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CDH-21-112 |
205 |
218.05 |
13.05 |
4.6 |
434 |
0.14 |
0.22 |
Hangingwall Vein parallel to |
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INCLUDING |
211 |
218.05 |
7.05 |
2.5 |
667 |
0.25 |
0.26 |
Hangingwall Vein parallel to |
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INCLUDING |
212 |
218.05 |
6.05 |
2.2 |
719 |
0.28 |
0.24 |
Hangingwall Vein parallel to |
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INCLUDING |
212 |
214 |
2.00 |
0.72 |
1050 |
0.43 |
0.23 |
Hangingwall Vein parallel to |
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INCLUDING |
214 |
215 |
1 |
0.36 |
781 |
0.1 |
0.1 |
Hangingwall Vein parallel to |
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The 2024 drill program continues with two diamond drills with over 12,000 meters and 40 holes completed this year, with 1,080 samples from 8 holes currently in the assay lab. The 2024 exploration work has almost tripled the known strike length of D-Vein which is mineralized for approximately 1,275 meters. Current work includes extending known mineralization along I-Vein and B-Veins trends. The current program is part of a fully funded follow up program of 20,000 meters, aimed to culminate in a maiden resource.
The company has also registered a 24-year surface access agreement with the appropriate government authorities that includes annual and other payments and allows for both exploration and exploitation. The agreement covers all the mineralized areas drilled to date.
Prospective veins on the project are hosted within a volcanic caldera setting, the surface extent of mapped veins measuring roughly 4 kilometres by 3 kilometres. Management believes that Columba may be a newly recognized vein district that is nearly entirely preserved from erosion.
A comprehensive list of drill results completed on the Columba Property since 2019 may be viewed here: Columba Drill Results.
Corporate Update
The Company also announces that during the fiscal quarter ended
For more information regarding the ATM Program, please see the Company's news release dated
This news release does not constitute an offer to sell or the solicitation of an offer to buy securities, nor shall there be any sale of securities in
Sampling and QA/QC at Columba
All technical information for the Columba exploration program is obtained and reported under a formal quality assurance and quality control ("QA/QC") program. Samples are taken from core cut in half with a diamond saw under the direction of qualified geologists and engineers. Samples are then labeled, placed in plastic bags, sealed and with interval and sample numbers recorded. Samples are delivered by the Company to ALS Minerals ("ALS") in Chihuahua. The Company inserts blanks, standards and duplicates at regular intervals as follows. On average a blank is inserted every 100 samples beginning at the start of sampling and again when leaving the mineral zone. Standards are inserted when entering the potential mineralized zone and in the middle of them, on average one in every 25 samples is a standard. Duplicates are taken in the mineralized intervals at an average 2 duplicates for each hole.
The samples are dried, crushed and pulverized with the pulps being sent airfreight for analysis by ALS in
Neither the
Qualified Persons
The
About
CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS:
The information in this news release has been prepared as at
Forward-looking statements are necessarily based upon a number of factors and assumptions that, while considered reasonable by
Cautionary Note to US Investors:
This news release includes Mineral Reserves and Mineral Resources classification terms that comply with reporting standards in
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