Vista Gold Phase 2 Drilling Continues to Intercept High Grade Gold Mineralized Intervals in the South Cross Lode at Mt Todd
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Figure 1: Plan view of the Mt Todd terrain showing Phase 2 drill hole locations with respective orientation to date, including the six holes announced in this release. (Graphic: Business Wire)
Drilling Highlights
VB24-025 – Returned multiple mineralized intervals, including
- 8.0 meters at 1.20 grams of gold per tonne (“g Au/t) from 22.5 meters downhole
-
20.8 meters at 1.96 g Au/t from 142.5 meters downhole, including
- 1.0 meter at 9.19 g Au/t from 155.0 meters downhole
VB24-027 – Returned multiple mineralized intervals near surface
- 15.0 meters at 0.77 g Au/t from 37.0 meters downhole
- 2.3 meters at 2.09 g Au/t from 59.7 meters downhole
- 23.0 meters at 0.93 g Au/t from 68.0 meters downhole
VB24-028 – Returned multiple mineralized intervals near surface
- 12.0 meters at 0.96 g Au/t from 25.0 meters downhole
-
4.0 meters at 2.49 g Au/t from 71.2 meters downhole, including
- 1.2 meters at 6.82 g Au/t from 74.0 meters downhole
Phase 2 drilling is focused on the shallow portion of the SXL. The six holes reported in this release have intercepts with gold grades up to 6.82 g Au/t near surface. Results to date indicate potential for expansion in the northeast portion of the current resource shell, including an area previously classified as waste. Additionally, drilling continued to intersect mineralization at depth with intercepts ranging from 3.06 to 9.19 g Au/t and confirm the presence of several high-grade sub-structures within the SXL.
“At the conclusion of the 2024 drilling program, we plan to update the Mt Todd mineral resource estimate and anticipate moving forward with a feasibility study targeting daily throughput in the range of 12,000 – 17,000 tonnes per day (4-6 million tonnes per annum), 150,000 to 200,000 ounces of annual gold production with an initial capex of less than
Figure 1 illustrates the Phase 2 drill hole locations and orientations to date. Figure 2 shows the locations of the drill holes relative to the 2024 Feasibility Study (as defined below) resource shell and the current pit design. Figure 3 is a photo of core from hole VB24-025 displaying an example of the high-grade mineralization encountered in the recent drill holes. Table 1 summarizes assay results and highlights multiple vein intercepts with grades above 5.0 g Au/t for the six holes announced in this press release.
Table 1. Summary of Phase 2 Drill Holes VB24-025 through VB24-030 – highlighting intercepts greater than 5.0 g Au/t.
Hole No. |
Grid Coordinates |
Survey Data |
Intersections |
||||||||||
MGA94 Grid Easting |
MGA94 Grid Northing |
RL (m) |
Azimuth (°) |
Dip (°) |
Depth (m) |
|
From (m) |
To (m) |
Interval (m) |
True Thickness (m) |
Grade (g Au/t ) |
Sample Type |
|
VB24-025 |
187622 |
8435694 |
137 |
268.8 |
-60.4 |
167.4 |
|
22.5 |
30.5 |
8.0 |
3.9 |
1.20 |
HQ ½ Core |
|
|
|
|
|
|
|
including |
27.9 |
30.5 |
2.7 |
1.3 |
3.22 |
HQ ½ Core |
|
|
|
|
|
|
|
and |
46.0 |
52.0 |
6.0 |
3.0 |
0.50 |
HQ ½ Core |
|
|
|
|
|
|
|
and |
60.0 |
63.8 |
3.8 |
1.9 |
0.50 |
HQ ½ Core |
|
|
|
|
|
|
|
and |
70.0 |
91.0 |
21.0 |
10.4 |
0.60 |
HQ ½ Core |
|
|
|
|
|
|
|
including |
70.0 |
71.0 |
1.0 |
0.5 |
5.57 |
HQ ½ Core |
|
|
|
|
|
|
|
and |
96.0 |
106.0 |
10.0 |
5.0 |
0.61 |
HQ ½ Core |
|
|
|
|
|
|
|
and |
119.0 |
122.4 |
3.4 |
1.7 |
0.57 |
HQ ½ Core |
|
|
|
|
|
|
|
and |
142.5 |
163.3 |
20.8 |
10.9 |
1.96 |
HQ ½ Core |
|
|
|
|
|
|
|
including |
147.0 |
150.9 |
3.9 |
2.0 |
3.06 |
HQ ½ Core |
|
|
|
|
|
|
|
including |
155.0 |
156.0 |
1.0 |
0.5 |
9.19 |
HQ ½ Core |
|
|
|
|
|
|
|
including |
160.0 |
163.3 |
3.3 |
1.7 |
4.93 |
HQ ½ Core |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
VB24-026 |
187415 |
8435502 |
150 |
271.2 |
-60.1 |
119.5 |
|
41.2 |
43.6 |
2.4 |
1.2 |
0.93 |
HQ ½ Core |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
VB24-027 |
187545 |
8435600 |
138 |
268.5 |
-60.3 |
121.1 |
|
11.3 |
14.0 |
2.8 |
1.4 |
0.66 |
HQ ½ Core |
|
|
|
|
|
|
|
and |
37.0 |
52.0 |
15.0 |
7.5 |
0.77 |
HQ ½ Core |
|
|
|
|
|
|
|
and |
59.7 |
62.0 |
2.3 |
1.2 |
2.09 |
HQ ½ Core |
|
|
|
|
|
|
|
and |
68.0 |
91.0 |
23.0 |
11.9 |
0.93 |
HQ ½ Core |
|
|
|
|
|
|
|
including |
72.2 |
76.0 |
3.8 |
2.0 |
2.84 |
HQ ½ Core |
|
|
|
|
|
|
|
and |
102.0 |
107.0 |
5.0 |
2.7 |
0.82 |
HQ ½ Core |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
VB24-028 |
187628 |
8435747 |
138 |
270.3 |
-60.0 |
125.5 |
|
25.0 |
37.0 |
12.0 |
6.5 |
0.96 |
HQ ½ Core |
|
|
|
|
|
|
|
including |
31.0 |
32.2 |
1.2 |
0.6 |
3.66 |
HQ ½ Core |
|
|
|
|
|
|
|
and |
71.2 |
75.2 |
4.0 |
2.0 |
2.49 |
HQ ½ Core |
|
|
|
|
|
|
|
including |
74.0 |
75.2 |
1.2 |
0.6 |
6.82 |
HQ ½ Core |
|
|
|
|
|
|
|
and |
84.0 |
91.0 |
7.0 |
3.4 |
0.99 |
HQ ½ Core |
|
|
|
|
|
|
|
including |
84.0 |
85.0 |
1.0 |
0.5 |
3.24 |
HQ ½ Core |
|
|
|
|
|
|
|
and |
120.4 |
124.4 |
4.1 |
2.0 |
2.48 |
HQ ½ Core |
|
|
|
|
|
|
|
including |
123.5 |
124.4 |
1.0 |
0.5 |
4.14 |
HQ ½ Core |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
VB24-029 |
187545 |
8435554 |
138 |
264.3 |
-60.8 |
212.4 |
|
18.2 |
20.0 |
1.9 |
0.9 |
0.96 |
HQ ½ Core |
|
|
|
|
|
|
and |
62.0 |
66.0 |
4.0 |
2.0 |
0.45 |
HQ ½ Core |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
VB24-030 |
187594 |
8435701 |
137 |
270.4 |
-60.1 |
203.1 |
|
92.2 |
97.0 |
4.8 |
2.4 |
1.11 |
HQ ½ Core |
|
|
|
|
|
|
|
including |
92.2 |
93.0 |
0.8 |
0.4 |
4.07 |
HQ ½ Core |
|
|
|
|
|
|
|
and |
142.0 |
146.2 |
4.2 |
2.1 |
0.64 |
HQ ½ Core |
Notes: |
||
(i) |
|
Results are based on ore grade 50g fire assay for Au. |
(ii) |
|
Intersections are from diamond core drilling with half-core samples. |
(iii) |
|
Core sample intervals were constrained by geology, alteration or structural boundaries, intervals varied between a minimum of 0.2 meters to a maximum of 1.2 meters. |
(iv) |
|
Mean grades have been calculated on a 0.4g Au/t lower cut-off grade with no upper cut-off grade applied, and maximum internal waste of 4.0 meters. |
(v) |
|
All mineralized interval lengths reported are downhole intervals. |
(vi) |
|
True Thicknesses are estimated based on the orientation of veining as measured relative to the core axis. |
(vii) |
|
All downhole deviations have been verified by downhole camera and or downhole gyro. |
(viii) |
|
Collar coordinates are given as Map Grid Australia MGA94 using a multi-band GNSS Garmin GPS 750i. |
(ix) |
|
The Company maintains a Quality Assurance and Quality Control procedures (QA/QC) program in accordance with the requirements and guidelines of CIM Standards of Disclosure for Mineral Projects. |
(x) |
|
The independent laboratory responsible for the assays was |
QA/QC Protocols and Sampling Procedure
All sampling was conducted under the supervision of the Company's geologists and the chain of custody from Mt Todd facilities to the independent sample preparation facility at
- The core is marked, geologically logged, geotechnically logged, photographed, and sawn into halves using diamond saws. One-half is placed into pre-numbered sample bags as per industry standards with sample lengths between a minimum of 0.2 meters to a maximum of 1.2 meters. The other half of the core is retained for future reference by the Company. The only exception to this is when a portion of the remaining core has been flagged for use in metallurgical testwork.
-
Following common industry practices, blanks and standards are also placed in plastic bags for inclusion in the shipment. A reference blank or a standard is inserted at a minimum ratio of 1 in 10 and additional blank samples are added at suspected high-grade intervals. Standard reference material is sourced from
Ore Research & Exploration Pty Ltd and provided in 60-gram sealed packets. When a sequence of four samples is completed, they are placed in a shipping bag and tied closed. All of these samples are kept in a secure area on-site until crated for shipping. - Vista employees ship and transport the samples to the NAL. At the lab, the samples are pulverized and split down to 50-gram assay samples prior to assaying. The industry-standard 3 assay-ton fire assay is followed by an atomic absorption (AA) finish.
- For the purposes of this release, mineralized intervals are defined as runs of mineralization with a maximum internal waste of 4.0 meters.
- NAL is independent of Vista.
It is the opinion of the QP (as defined below) that the sample preparation methods and quality control measures employed before the dispatch of samples to an analytical or testing laboratory ensured the validity and integrity of samples taken.
For more information on the Company’s
About
Vista holds the Mt Todd gold project, a shovel-ready development-stage gold deposit located in the Tier-1 mining jurisdiction of
Vista’s strategy is to advance Mt Todd in ways that efficiently position the project for development while exercising the discipline necessary to best realize value at the right time. Vista believes its strategy of advancing Mt Todd in this manner will deliver a more fully valued project to its shareholders.
For further information about Vista or Mt Todd, please contact
Forward-Looking Statements
This news release contains forward-looking statements within the meaning of the
View source version on businesswire.com: https://www.businesswire.com/news/home/20241030238882/en/
Vice President of Investor Relations
(720) 981-1185
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