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Bravo’s Re-assay Program Continues to Confirm High PGM + Au Grades at Luanga

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Bravo’s Re-assay Program Continues to Confirm High PGM + Au Grades at Luanga

 

 

 

 

 

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

  • Assay results from the re-assaying of samples from historic drilling continue to correlate closely with the historic assay results, in both tenor and mineralized thicknesses, but with the grade of more than 80% of the re-assayed intercepts exceeding the historic intercepts over comparable thicknesses.
  • Highlights of Bravo’s most recent re-assay results are tabulated below, with details and comparisons attached:

 

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.
  • 77 drill holes have been completed, for a total of 13,051 metres (or 51% of Phase 1 Drilling Program). Currently, samples from 30 drill holes are at the laboratory pending results.
  • 12,632 samples submitted for assay to date including 2,945 re-assay samples from historic drill core.
  • 6 drill rigs operating onsite.

 

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 (ALSSGS) 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.)

 

Posted October 1, 2022

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