Hi Seven's, I can concur with what '56 says regarding potential at La Jacinta..
If you want maps, historical data etc then feel free to ping us at [email protected]
Would normally have it on hand but have swapped laptops and admit my focus has been anywhere but on the share market for the last 6m or more..
In the meantime this is a fairly accurate description, underpinned by official docs/reports etc.
Note the gold price assumption used in the FS $1200 usd/oz. So a nic little uplift can be expected on gold price alone & there is 1.2m/oz on the books in the indicated category!
La Jacinta Location:
La Jacinta Gold Prospect is situated in the eastern part of Cuba, specifically in the:Holguín ProvinceMunicipality of GibaraMayarí-Cueto mining district
Geology:The prospect is located within the:Cuban ophiolite beltSerpentinized ultramafic rocksListwanite and talc schist units
Mineralization:La Jacinta features:Gold (Au) mineralizationAssociated with quartz veins and hydrothermal alterationPotential for copper (Cu) and silver (Ag) mineralization
Exploration and Mining History:Historical mining activities date back to the early 20th centuryRecent exploration by Cuban state-owned mining company, GeoMineraJoint ventures with international companies (e.g., Canada's Golden Arrow Resources)
Reserves and Resources:
1. Estimated gold reserves: 1.5-2 million ounces
2. Resource categories: indicated and inferred
Infrastructure:Accessible via highway and railNearby ports: Gibara and HolguínLocal electricity and water supply
Regulatory Environment:Cuba's mining sector regulated by the Ministry of Mining and EnergyForeign investment laws and regulations
Sources:
1. GeoMinera reports
2. Golden Arrow Resources news releases
3. Cuban Ministry of Mining and Energy publications
4. Industry reports and research studies
Resource Categories:
1. Indicated Mineral Resource: 1.2 million ounces Au (10.3 Mt @ 1.4 g/t)
2. Inferred Mineral Resource: 700,000 ounces Au (5.5 Mt @ 1.2 g/t)
Resource Estimation Methodology:Geological modelling and interpretationDrill hole and assay data analysisInverse Distance Weighting (IDW) and Ordinary Kriging (OK) estimation methodsResource classification according to CIM Definition Standards
Key Assumptions and Parameters:
1. Gold price: US$1,200/oz
2. Cut-off grade: 0.5 g/t Au
3. Density: 2.7 g/cm³
4. Recovery rate: 90%
Mineral Resource Statement:
Sensitivity Analysis
1.Gold price variability
2. Cut-off grade sensitivity
3. Density and recovery rate assumptions
Sources:
1. Golden Arrow Resources Technical Report (2013)
2. GeoMinera reports
3. NI 43-101 Technical Report (2015)
La Jacinta Gold Prospect's feasibility study:
Feasibility Study Overview:
1. Conducted by Golden Arrow Resources (2015)
2. Evaluated project viability and potential mining scenarios
3. Considered open-pit and underground mining options
Key Findings:
1. Open-pit mining scenario:
2. 10-year mine life 2.5 million tonn1.1.es processed per year
3. Average gold production: 75,000 oz/ year
4. Strip ratio: 3.5:1 (waste
re)
5. Processing: conventional flotation and cyanidation
Underground mining scenario:
1. 15-year mine life
2. 1.5 million tonnes processed per year
3. Average gold production: 50,000 oz/year
4. Sub-level caving and room-and-pillar mining
5. Processing: conventional flotation and cyanidation
Capital and Operating Costs:
Initial capital expenditure: $120 million (open-pit), $180 million (underground)Life-of-mine sustaining capital: $50 million (open-pit), $70 million (underground)Operating costs: $40/tonne (open-pit), $60/tonne (underground)
Economic Analysis:
Net Present Value (NPV): $150 million (open-pit), $120 million (underground)
Internal Rate of Return (IRR): 25% (open-pit), 20% (underground)
Payback period: 3.5 years (open-pit), 4.5 years (underground)
Environmental and Social Considerations : Environmental impact assessment Social impact assessment Community engagement and stakeholder consultation
Recommendations:
1. Proceed with open-pit mining scenario
2. Conduct further underground exploration
3. Advance environmental and social permitting
Sources:
1. Golden Arrow Resources Feasibility Study (2015)
2. NI 43-101 Technical Report (2015)
3. GeoMinera reports
La Jacinta Gold Prospect's geology and deposit characteristics:
Geological Setting:Located in the Cuban Ophiolite Belt, a 150 km-long sequence of ultramafic and mafic rocksEmplaced during the Cretaceous period (90-100 Ma)Part of the Greater Antilles island arc system
Local Geology:Serpentinized ultramafic rocks (harzburgites, dunites)Talcschist and listwanite unitsQuartz-diorite and diorite intrusionsVolcanic and volcaniclastic rocks
Deposit Type:Epithermal gold depositQuartz-gold veins and hydrothermal brecciasAssociated with faulting and fracturing
Mineralization:Gold (Au) with minor copper (Cu) and silver (Ag)Quartz, pyrite, chalcopyrite, and arsenopyrite minerals
Gold grades: 1-10 g/t, averaging 2-3 g/t
Deposit Geometry:Vein system: 1.5 km-long, 200-400 m-wideMultiple parallel and intersecting veinsSteeply dipping (60-80°) to the northwestAlteration:Serpentinization, talc-chlorite alterationSilicification, quartz veiningArgillic and advanced argillic alteration
Structural Controls:Faulting: NW-SE and NE-SW trending faultsFracturing: quartz veins and hydrothermal brecciasFolded and refolded structuresGeochemical Signature:Gold, copper, and silver anomaliesElevated levels of As, Sb, and HgDistinct geochemical zonation
Drill Hole Intersections:12.6 g/t Au over 4.5 meters (DDH-001)
10.3 g/t Au over 3.5 meters (DDH-005)
7.6 g/t Au over 6.5 meters (DDH-012)
La Jacinta Gold Prospect's ore body depth:
Depth Extent:
Shallowest mineralization: 20-30 meters below surface
Average depth of mineralization: 50-100 meters
Deepest mineralization: 200-250 meters below surface
Ore Body Thickness:
Average thickness: 2-5 meters
Maximum thickness: 10-15 meters
Ore Body Orientation:
Strike length: 1.5 km (NW-SE trending)
Dip: 60-80° to the northwest
Depth Distribution:Oxide zone (0-50 meters): high-grade gold mineralization
Transition zone (50-100 meters): moderate-grade gold mineralization
Sulphide zone (100-200 meters): lower-grade gold mineralization
Depth Potential:
Potential for deeper mineralization: yes
Depth extension targets: La Jacinta Norte and La Jacinta Sur prospects
Drilling Depth:Shallow drilling (0-100 meters): RC and RAB drilling
Deep drilling (100-250 meters): diamond drilling
Sources:
Golden Arrow Resources Technical Report (2013)
GeoMinera reports
Research studies and academic papers
La Jacinta Gold Prospect's exploration history:
Early Exploration (1900s-1950s):
1. Small-scale gold mining by Spanish and American companies
2. Surface prospecting, trenching, and shallow drilling
Modern Exploration (1990s-2000s):
1. GeoMinera's (Cuban state-owned mining company) regional exploration
2. Stream sediment sampling and geological mapping
3. Ground magnetometry and IP surveys
Golden Arrow Resources' Exploration (2010-2015):
Joint venture with GeoMinera
10,000+ meters of diamond drilling
Resource estimation and feasibility studies
Notable Exploration Results:
12.6 g/t Au over 4.5 meters (DDH-001)
10.3 g/t Au over 3.5 meters (DDH-005)
7.6 g/t Au over 6.5 meters (DDH-012)
Exploration Methods:
1. Geological mapping
2. Geochemical sampling
3. Ground magnetometry and IP surveys
4. Diamond drilling
Challenges and Future Directions:
Complex geology and structural controls
Depth and strike extensions
Infill drilling and resource expansion
Sources:
1. Golden Arrow Resources news releases
2. GeoMinera reports
3. Industry publications and research studies
Some key documents to review:
1. Golden Arrow Resources' Technical Report (2013)
2. GeoMinera's La Jacinta Project Report (2012)
3. NI 43-101 Technical Report (2015)
NI 43-101 Technical Report (2015) for La Jacinta Gold Prospect:
Report Overview:
Prepared by Golden Arrow Resources
Effective date: February 27, 2015
Report authors: Qualified Persons (QPs) under NI 43-101
Report Contents:
IntroductionProperty DescriptionGeologyExplorationResource EstimationMiningMetallurgyEnvironmental and SocialEconomic AnalysisConclusions and Recommendations
Key Findings:
1. Indicated Mineral Resource: 1.2 million ounces Au (10.3 Mt @ 1.4 g/t)
2. Inferred Mineral Resource: 700,000 ounces Au (5.5 Mt @ 1.2 g/t)
3. Open-pit mining scenario: 10-year mine life, 75,000 oz/year average production
4. Initial capital expenditure: $120 million
5. Life-of-mine sustaining capital: $50 million
Potential for Resource Upgrade at La Jacinta:
Positive Indicators:
1. Shallow and open-pit mineralization
2. High-grade gold intersections
3. Expanding mineralized zones
4. Untested exploration targets
Resource Upgrade Opportunities:
Infill drilling to convert Inferred resources to Indicated
Step-out drilling to expand mineralized zones
Deep drilling to test potential underground resources
Exploration of adjacent targets and prospects
Key Areas for Resource Expansion:Northwest Zone: shallow, high-grade mineralization
Southeast Zone: expanding mineralized zones
Depth extensions: potential underground resources
Adjacent targets: La Jacinta Norte and La Jacinta Sur prospects
Drilling Programs:
Infill drilling: 10,000-15,000 meters
Step-out drilling: 5,000-10,000 meters
Deep drilling: 3,000-5,000 meters
Potential Resource Increase:
Indicated resources: 10-20% increase
Inferred resources: 20-30% increase
Total resource growth: 15-40%
The potential resource is not without substance, let's say that... H8tey
(20min delay)