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Metals: Gold
Location: Monte do Carmo, Tocantins State, Brazil
Ownership: 100%
Status: Advanced Development stage: Feasibility underway
Deposit Type: Intrusion related gold
Infrastructure:
Very accessible, skilled labor, water, power, paved roads
Property Summary
The Monte do Carmo (MDC) Gold Project is located in the state of Tocantins, Brazil, immediately east of the town of Monte do Carmo. The Serra Alta deposit is the main focus of the exploration of the project. The Monte do Carmo property consists of 14 exploration permits totaling 82,451 ha. The property has access to excellent local infrastructural with no artisanal mining or NGO issues and strong local support from the residents.
History
Gold was originally discovered in the Monte do Carmo area during the 17th century by the Portuguese. During the 1980s the area experienced an influx of artisanal gold miners (Garimpeiros) motivated by the recent rise in gold prices. Investments in mineral exploration in the area, by others, is reported to have amounted to US$4.7 million from 1985 through 1995, and over US$20.0 million from 1996 to 2018. Most of the investment was made in the Serra Alta area on many of the known gold occurrences.
Exploration Program
Finding the net 30km of Mineralized Trends
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Serra Alta: E2 & E3
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Baru: 1.5km trend lookalike to Serra Alta
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Fartura
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Bit-3: 15km Shear Zone
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Giant Quartz Veins
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Capitao East: Applying Serra Alta knowledge to attack potential higher structural level
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Divisa: Magnetic Target
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Granite Host
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NE Shear Zone
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Proximity to intrusive contact volcanics
What we look for
Prospective Trends
Serra Alta: East extension E2 & E3
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Targeting a magnetic lineament extending for greater than 1 km strike length that potentially represents the NE continuity of the DK2 shear
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Conceptual target: granitic hanging wall analogue to segmented zones in Serra Alta
Baru: 1.5km trend look alike to Serra Alta
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Limited drilling completed in 2021
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Possibility of replicating Copula contact Serra Alta mineralization style in segments along these kilometric trends
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Modeling and vectoring work in progress to plan next drilling phase
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The assays from Drilling in November and December intersected 18.59m@0.95 Au gt
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Intersection confirms Serra Alta mineralization model to the west of main fault
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Fartura
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Four holes (FFA-001 to 004) were completed in Fartura.
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Core Logging and revised surface geological mapping confirmed that the host rock of the shallow mineralization (mined informally on surface) in Fartura is a porphyritic felsic volcanic.
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Visible gold and dense quartz veining occurred in holes 1 and 2 that returned relevant intercepts including 5.35 m at 1.85 g/t Au, from 62.83 m and 5.04 m at 1.50 g/t Au, from 32.56 m.
Bit-3: 5km Shear Zone
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Discovered from an airborne geophysical anomaly that’s indicates a Huge Mafic/Ultramafic geological unit.
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In 2018 five trenches and 4 drill holes were executed and positive assays were produced.
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2021 seven more drill holes where executed with positive composites.
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This target is related to a 15 km Shear zone strike and potential is open for exploration at depth.
Giant Quartz Veins: Possible Hanging Wall Sheeted Vein Zones
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There are 30 large quartz veins south of Serra Alta under consideration, of which
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24 are mapped and about 21 were studied and evaluated for preliminary resource calculations
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2021 seven more drill holes where executed with positive composites.
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This target is related to a 15 km Shear zone strike and potential is open for exploration at depth.
Capitao East
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Granite underneath quartzite
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Possible higher structural level
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Parallel lineaments suggesting shear bounded geology
Divisa: Magnetic Target
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Divisa target located along the same shear zone that host Bit3. This relevant mineralized structure extends for > 15 km
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NE soil anomalies ~ 1km strike length not previously drilled.
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Some positive results in rock with up to 7.78ppm (granite)
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Possible demagnetizations associated with soil anomalies over hydrothermally altered zone
Serra Alta Deposit
Cerrado’s primary target at the Monte do Carmo mine characterized by a high-grade, shallow mineralization, with an open pittable Mineral Resource.
Preliminary Economic Assessment, effective August 25, 2021
• Average annual gold production of 149,000 ozs over first 5 years and 131,000 ozs over LOM 8 years
• Annual Average Free cash flow of US$150 million over the first 5 years
• Total cumulative, after tax, free cash flow estimated US$901 million over 8 years
• Average AISC of US$431/oz over the first 5 years
• Low Initial Capex of US$126 million (including US$25 million contingency)
• Payback of 1.3 years
• Further upside potential from continued exploration drilling & resource expansion
• Development program including Feasibility Study to begin immediately
The Preliminary Economic Assessment is prepared in accordance with National Instrument 43-101 - Standards for Disclosure for mineral Projects by GE21 with an effective date of August 2021.
Mining
The mine design is based on standard open pit mining techniques of drill, blast and haul using contract mining to reduce upfront capital needs. Based upon the newly expanded resource, GE21 has designed a mine plan which extracts approximately 18.5 million tonnes of the current resource base over an 8-year mine life at an average strip ratio of 6.64 for the first 5 years and 10.9 to 1 over the life of mine. The Phase I exploratory drilling program completed earlier this year, increased the mineral resources model mainly to the North and East, resulting in the extension of the Projected Open Pit in the same direction resulting in a slightly higher strip ratio than the prior PEA, but significantly increasing recoverable ounces. Mining will reach nominal ore feed to mill in year 2 of approximately 2.6 million tonnes. Mining costs are estimated at US$1.70/t of material moved which is based on current costs at other regional operations.
Metallurgy and Processing
Cerrado completed additional metallurgical test work to advance previous strong results. The additional metallurgical test work, based on 300 kg samples, once again confirmed the recoverability of gold by gravity concentration and tailing flotation followed by CIP leaching of float concentrate. The results of the test work confirmed the metallurgical recovery of up to 98.5% of which approximately 79% is recovered by gravity. The final leached tailings will be submitted to detox circuit before sending it to final disposal. The high percentage of gold recovered by gravity allows for a simple design layout with limited CIP leaching capacity required, which significantly reduces up front capital requirements. Metallurgical test work also indicates that the waste rock and detoxed tailings are neutral by nature, which points to very amenable disposal of mineral residues making it easier to deploy environmentally and more affordable.
2021 Pit Shell
Mineral Resource Estimate for the Serra Alta Deposit, effective July 23, 2021
The Mineral Resource Estimate is prepared in accordance with National Instrument 43-101 - Standards for Disclosure for mineral Projects by Micon International Limited (Micon) with an effective date of July 21,2021.
Maps
The Monte do Carmo Gold Project is located in the State of Tocantins, Brazil, immediately east of the town of Monte do Carmo. The Serra Alta Deposit, the main focus of exploration at the project, is located at 10° 45' 4" south latitude and 48° 4' 20." west longitude. Monte do Carmo (7,700 inhabitants) is located 39 km east of the city of Porto Nacional (55,000 inhabitants). Porto Nacional is 50 km (60 km by road) south of the state capital of Palmas (250,000 inhabitants) and 760 km north of Brazilia, the federal capital.
Technical Reports
Cerrado Gold has obtained technical reports prepared in accordance with National Instrument 43-101
View Micon Report - Mineral Resource Estimate Report, April 3, 2019
Cerrado's Proposed Exploration Program
TARGET
DRILLING STRATEGY
DDH (m)
DEPOSIT TYPE TARGET
Serra Alta
Capitao
Magalhaes Vein
Fartura
Other Targets
Exploratory
Exploratory
Exploratory
Exploratory
Exploratory
Total Drilling
21,100
3,815
630
2,122
Sheeted Veins
Sheeted Veins
Quartz Veins
Sheeted Veins
3,333
31,100
