
Highlights include: 16m @ 9.4g/t PGM + Au, with 9m @ 14.5g/t PGM + Au (with 0.5g/t Rh)
And: 6m @ 7.6g/t PGM + Au, including 2m @ 20.5*g/t PGM + Au (with >1.0*g/t Rh)
Bravo Mining Corp. (TSX-V: BRVO), announced that it has received results from the re-analysis of samples from an additional eight historic diamond drill holes from its wholly owned Luanga palladium + platinum + rhodium + gold + nickel project located in the Carajás Mineral Province, state of Pará, Brazil.
“With re-assay results received from 36 historic drill holes to date, an emerging positive trend has been observed in respect of overall PGM+Au grades, with greater than 80% of re-assay intersections received to date returning better grades as compared to historic results of approximately 20 years ago.” said Luis Azevedo, Chairman and CEO of Bravo. “We will continue to assess this emerging grade trend as, if maintained in the remaining holes to be re-assayed, it could clearly have a positive impact on future mineral resource estimates.
Highlights
HOLE-ID | From
(m) |
To
(m) |
Thickness (m) |
Pd
(g/t) |
Pt
(g/t) |
Rh
(g/t) |
Au (g/t) |
PGM + Au (g/t) |
Ni % (Sulphide) |
Type |
PPT-LUAN-FD0035 | 3.0 | 19.0 | 16.0 | 5.78 | 2.79 | 0.35 | 0.47 | 9.39 | NA | Ox |
Including | 6.0 | 15.0 | 9.0 | 8.94 | 4.28 | 0.47 | 0.79 | 14.48 | NA | Ox |
PPT-LUAN-FD0060 | 0.0 | 41.0 | 41.0 | 0.98 | 0.45 | 0.05 | 0.03 | 1.52 | NA | Ox |
Including | 18.0 | 41.0 | 23.0 | 1.17 | 0.59 | 0.05 | 0.04 | 1.85 | 0.32 | FR |
PPT-LUAN-FD0065 | 21.0 | 27.0 | 6.0 | 0.95 | 6.16 | 0.46 | 0.01 | 7.57 | NA | Ox/LS |
Including | 25.0 | 27.0 | 2.0 | 2.28 | 17.06 | >1.00* | 0.01 | 20.45 | NA | Ox/LS |
PPT-LUAN-FD0071 | 0.0 | 13.0 | 13.0 | 2.20 | 1.22 | 0.20 | 0.14 | 3.76 | NA | Ox |
Including | 0.0 | 8.0 | 8.0 | 3.35 | 1.44 | 0.30 | 0.21 | 5.70 | NA | Ox |
Notes: | All ‘From’, ‘To’ depths, and ‘Thicknesses’ are downhole. |
Given the orientation of the holes and the mineralization, the intercepts are estimated to range from ~80 to 95% of true thickness. | |
Type: Ox = Oxide. FR = Fresh Rock. LS = Low Sulphur. Recovery methods and results will differ based on the type of mineralization. | |
NA: Not Applicable as intercept is oxide or a mix of oxide and fresh rock mineralization. | |
* = Preliminary results; overlimit analyses pending. |
Luanga Re-Assay and Phase 1 Drilling Progress
A comparison of the historic intercepts with the Bravo re-assay results is tabulated below, with a plan showing their locations and drill sections provided for (PPT-LUAN-) FD0035, FD0053, and FD0071. Bravo’s re-assay results continue to closely correlate to the historic intercepts, in both thicknesses and grade. Importantly, the grade of the re-assayed intercepts exceeds that of the historic intercept over comparable thicknesses in over 80% of the intercepts re-assayed to date. This is most likely related to improved assay methods for PGMs versus those available over 20 years ago.
The Phase 1 diamond drill program continues as planned at Luanga. Six drill rigs are on site, with drilling progressing in various locations along the entire 7km strike length of the known Luanga mineralized envelope (as defined by historic drilling). To date, 77 drill holes have been completed, for a total of 13,051 metres of the planned 25,500 metre Phase 1 drill program.
Comparison of Re-Assayed Intercepts – Historic Intercept (SGS Laboratory) versus Bravo Intercept (ALS Laboratory)
HOLE-ID | From
(m) |
To
(m) |
Thickness (m) |
HISTORIC SGS
PGM + Au (g/t) |
BRAVO ALS
PGM + Au (g/t) |
HISTORIC
Ni % (Total) |
BRAVO**
Ni % (Sulphide) |
TYPE |
PPT-LUAN-FD0029 | 63.0 | 76.0 | 13.0 | 1.04 | 1.13 | 0.12 | 0.09 | FR |
And | 91.0 | 120.0 | 29.0 | 0.62 | 0.78 | 0.05 | 0.04 | FR |
PPT-LUAN-FD0030 | 85.0 | 95.0 | 10.0 | 1.44 | 1.63 | 0.20 | 0.15 | FR |
PPT-LUAN-FD0035 | 3.0 | 19.0 | 16.0 | 9.32 | 9.39 | 0.14 | NA | Ox |
Including | 6.0 | 15.0 | 9.0 | 14.18 | 14.48 | 0.19 | NA | Ox |
PPT-LUAN-FD0053 | 0.0 | 12.0 | 12.0 | 0.88 | 1.12 | 0.13 | NA | Ox |
And | 16.0 | 25.0 | 9.0 | 1.65 | 1.93 | 0.05 | NA | Ox |
PPT-LUAN-FD0058 | 0.0 | 8.0 | 8.0 | 1.66 | 2.03 | 0.09 | NA | Ox |
PPT-LUAN-FD0060 | 0.0 | 41.0 | 41.0 | 1.41 | 1.52 | 0.22 | NA | Ox |
Including | 18.0 | 41.0 | 23.0 | 1.66 | 1.85 | 0.26 | 0.32 | FR |
And | 80.0 | 85.0 | 5.0 | 0.99 | 0.92 | 0.10 | 0.07 | FR |
PPT-LUAN-FD0065 | 21.0 | 27.0 | 6.0 | 7.74 | 7.57 | 0.03 | NA | Ox/LS |
Including | 25.0 | 27.0 | 2.0 | 18.29 | 20.45* | 0.04 | NA | Ox/LS |
And | 109.0 | 120.0 | 11.0 | 0.85 | 0.85 | 0.09 | 0.09 | FR |
PPT-LUAN-FD0071 | 0.0 | 13.0 | 13.0 | 3.69 | 3.76 | 0.18 | NA | Ox |
Including | 0.0 | 8.0 | 8.0 | 5.66 | 5.70 | 0.24 | NA | Ox |
And | 101.0 | 113.0 | 12.0 | 0.64 | 0.75 | 0.03 | 0.02 | FR/LS |
Notes: | All ‘From’, ‘To’ depths, and ‘Thicknesses’ are downhole. |
Given the orientation of the holes and the mineralization, the intercepts are estimated to range from ~80 to 95% of true thickness. | |
Type: Ox = Oxide. FR = Fresh Rock. LS = Low Sulphur. Recovery methods and results will differ based on the type of mineralization. | |
NA: Not Applicable as intercept is oxide or a mix of oxide and fresh rock mineralization. | |
* = Preliminary result, overlimit analyses pending. | |
** = Note that Bravo’s nickel grades are for sulphide nickel, which is representative of potentially recoverable (by froth flotation treatment) nickel, and does not include non-recoverable silicate nickel, unlike historic total nickel assays. |
Complete Table of New Re-assayed Intercepts
HOLE-ID | From
(m) |
To
(m) |
Thickness (m) |
Pd
(g/t) |
Pt
(g/t) |
Rh
(g/t) |
Au (g/t) |
PGM + Au (g/t) |
Ni % (Sulphide) |
TYPE |
PPT-LUAN-FD0029 | 63.0 | 76.0 | 13.0 | 0.79 | 0.28 | 0.04 | 0.02 | 1.13 | 0.09 | FR |
And | 91.0 | 120.0 | 29.0 | 0.48 | 0.27 | 0.01 | 0.01 | 0.78 | 0.04 | FR |
PPT-LUAN-FD0030 | 85.0 | 95.0 | 10.0 | 1.17 | 0.40 | 0.05 | 0.02 | 1.63 | 0.15 | FR |
PPT-LUAN-FD0035 | 3.0 | 19.0 | 16.0 | 5.78 | 2.79 | 0.35 | 0.47 | 9.39 | NA | Ox |
Including | 6.0 | 15.0 | 9.0 | 8.94 | 4.28 | 0.47 | 0.79 | 14.48 | NA | Ox |
PPT-LUAN-FD0053 | 0.0 | 12.0 | 12.0 | 0.68 | 0.38 | 0.05 | 0.01 | 1.12 | NA | Ox |
And | 16.0 | 25.0 | 9.0 | 1.31 | 0.55 | 0.07 | 0.01 | 1.93 | NA | Ox |
PPT-LUAN-FD0058 | 0.0 | 8.0 | 8.0 | 0.95 | 0.96 | 0.11 | 0.01 | 2.03 | NA | Ox |
PPT-LUAN-FD0060 | 0.0 | 41.0 | 41.0 | 0.98 | 0.45 | 0.05 | 0.03 | 1.52 | NA | Ox |
Including | 18.0 | 41.0 | 23.0 | 1.17 | 0.59 | 0.05 | 0.04 | 1.85 | 0.32 | FR |
And | 80.0 | 85.0 | 5.0 | 0.60 | 0.25 | 0.01 | 0.06 | 0.92 | 0.07 | FR |
PPT-LUAN-FD0065 | 21.0 | 27.0 | 6.0 | 0.95 | 6.16 | 0.46 | 0.01 | 7.57 | NA | Ox/LS |
Including | 25.0 | 27.0 | 2.0 | 2.28 | 17.06 | >1.00* | 0.01 | 20.45* | NA | Ox/LS |
And | 109.0 | 120.0 | 11.0 | 0.41 | 0.33 | 0.07 | 0.04 | 0.85 | 0.09 | FR |
PPT-LUAN-FD0071 | 0.0 | 13.0 | 13.0 | 2.20 | 1.22 | 0.20 | 0.14 | 3.76 | NA | Ox |
Including | 0.0 | 8.0 | 8.0 | 3.35 | 1.44 | 0.30 | 0.21 | 5.70 | NA | Ox |
And | 101.0 | 113.0 | 12.0 | 0.17 | 0.50 | 0.08 | 001 | 0.75 | 0.02 | FR/LS |
Notes: | All ‘From’, ‘To’ depths, and ‘Thicknesses‘ are downhole. |
Given the orientation of the holes and the mineralization, the intercepts are estimated to range from ~80 to 95% of true thickness. | |
Type: Ox = Oxide. FR = Fresh Rock. LS = Low Sulphur. Recovery methods and results will differ based on the type of mineralization. | |
NA: Not Applicable as intercept is oxide or a mix of oxide and fresh rock mineralization. | |
* = Preliminary result; overlimit analyses pending. |
About Bravo Mining Corp.
Bravo is a Canada and Brazil-based mineral exploration and development company focused on advancing its Luanga PGM + Au + Ni Project in the world-class Carajás Mineral Province of Brazil.
The Luanga Project benefits from being in a location close to operating mines, with excellent access and proximity to existing infrastructure, including road, rail and clean and renewable hydro grid power. The project area was previously de-forested for agricultural grazing land. Bravo’s current Environmental, Social and Governance activities includes replanting trees in the project area, hiring and contracting locally, engagement with local communities, and ensuring protection of the environment during its exploration activities.
Technical Disclosure
Technical information in this news release has been reviewed and approved by Simon Mottram, F.AusIMM (Fellow Australia Institute of Mining and Metallurgy), President of Bravo Mining Corp. who serves as the Company’s “qualified person”, as defined in National Instrument 43-101 Standards of Disclosure for Mineral Projects. Mr. Mottram has verified the technical data and opinions contained in this news release.
Schedule 1: Drill Hole Collar Details
HOLE-ID | Company | East (m) | North (m) | RL (m) | Datum | Depth (m) | Azimuth | Dip | |
PPT-LUAN-FD0029 | Vale SA | 656751.12 | 9339445.98 | 264.83 | SIRGAS2000 UTM22S | 120.80 | 360.00 | -60.00 | |
PPT-LUAN-FD0030 | Vale SA | 656752.05 | 9339732.06 | 286.13 | SIRGAS2000 UTM22S | 120.15 | 360.00 | -60.00 | |
PPT-LUAN-FD0035 | Vale SA | 657150.83 | 9339760.87 | 278.36 | SIRGAS2000 UTM22S | 121.35 | 360.00 | -60.00 | |
PPT-LUAN-FD0053 | Vale SA | 659337.63 | 9341372.84 | 251.75 | SIRGAS2000 UTM22S | 221.65 | 330.00 | -60.00 | |
PPT-LUAN-FD0058 | Vale SA | 659444.35 | 9343173.81 | 269.07 | SIRGAS2000 UTM22S | 156.10 | 90.00 | -60.00 | |
PPT-LUAN-FD0060 | Vale SA | 659992.74 | 9342371.79 | 288.78 | SIRGAS2000 UTM22S | 181.25 | 90.00 | -55.00 | |
PPT-LUAN-FD0065 | Vale SA | 659497.72 | 9342974.99 | 275.80 | SIRGAS2000 UTM22S | 269.75 | 90.00 | -60.00 |
Schedule 2: Assay Methodologies and QAQC
Samples followed chain of custody between collection, processing and delivery to the ALS laboratory in Parauapebas, state of Pará, Brazil. The drill core was delivered to the core shack at Bravo’s Luanga site facilities and processed by geologists who inserted certified reference materials, blanks and duplicates into the sampling sequence. Drill core was quarter cut and placed in secured polyurethane bags, then in security-sealed sacks before being delivered directly from the Luanga site facilities to the Parauapebas ALS laboratory by Bravo staff. Additional information about the methodology can be found on the respective ALS or SGS global websites (ALS, SGS) in their analytical guides. Information regarding preparation and analysis of historic drill core is also presented in the table below, where the information is known.
Quality Assurance and Quality Control is maintained internally at the lab through rigorous use of internal certified reference materials, blanks, and duplicates. An additional QAQC program is administered by Bravo using certified reference materials, duplicate samples and blank samples that are blindly inserted into the sample batch. If a QAQC sample returns an unacceptable value an investigation into the results is triggered and when deemed necessary, the samples that were tested in the batch with the failed QAQC sample are re-tested.
Bravo ALS | ||||||
Preparation | Method | Method | Method | Method | ||
For All Elements | Pt, Pd, Au | Rh | Ni-Sulphide | Trace Elements | ||
PREP-31B | PGM-ICP27 | Rh-MS25 | Ni-ICP05 | ME-ICP61 | ||
Historic Drill Assaying SGS Geosol | ||||||
Preparation | Method | Method | Method | Method | ||
For All Elements | Pt, Pd, Au | Rh | TOTAL Ni | Trace Elements | ||
Crushed to | FA30A | FA30B | ICP-117 | ICP-117 | ||
Location of Historic Drill Hole Results Discussed in this Report (CNW Group/Bravo Mining Corp.)
Section 1 – Showing PPT-LUAN-FD0035 (CNW Group/Bravo Mining Corp.)
Section 2 – Showing PPT-LUAN-FD0053 (CNW Group/Bravo Mining Corp.)
Section 3 – Showing PPT-LUAN-FD0071 (CNW Group/Bravo Mining Corp.)
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