Targeting Gold-Bearing Aggregates on Ghana's Shallow Continental Shelf
The geological convergence of three gold-carrying rivers onto a shallow shelf — and the modern offshore technology to recover it.
A Story Written in Rock and Water
The gold didn't arrive on the continental shelf by accident. It followed a geological pathway that took millions of years to build.
Millions of Years of Erosion
Ghana sits atop one of the richest gold belts on Earth. Over geological time, 400 to 600 vertical meters of gold-bearing bedrock have been continuously eroded by weathering, tectonic activity, and relentless rainfall.
Three Rivers, One Destination
Three major rivers — the Pra, the Ankobra, and the Tano — have served as conveyor belts, carrying immense volumes of gold-rich sediment from the interior toward the coast. This is the only place on Earth where three gold-transporting river systems converge onto a single shallow shelf.
Deposited on the Continental Shelf
As these rivers reach the ocean, current velocities drop and heavy minerals settle out. Gold, being extremely dense, concentrates in the top 2 to 3 meters of seabed sediment across the shallow continental shelf — nature's own gravity separation.
~200M Oz Estimated Eroded Inventory
Based on the known dimensions of the eroded rock column and average gold grades of the Ashanti Belt, geologists estimate that approximately 200 million ounces of gold have been transported onto the shelf over time. This material is sitting in shallow water, accessible with proven dredging technology.
10 Contiguous Offshore Reconnaissance Licenses
Covering approximately 10,000 km² of Ghana's shallow continental shelf — roughly 300 km of coastline, or 53% of the nation's total.
10
Contiguous Licenses
~10,000km²
Licensed Area
~300km
Coastline Coverage
53%
Of Ghana's Total Coastline
Stylized overview
Ghana's Gold Belt → Three Rivers → Continental Shelf License Area
Systematic Path to Resource Confirmation
A four-phase exploration program designed to progressively de-risk the asset and build toward a bankable resource estimate.
Airborne Magnetic Geophysical Survey
High-resolution aeromagnetic data collection to map subsurface geological structures and identify potential mineralization zones across the full license area.
Seaborne Survey
Comprehensive offshore data collection including bathymetric mapping, sub-bottom seismic profiling, and marine magnetometry to build a detailed 3D model of the seabed and underlying sediment layers.
GIS Composite Mapping
Integration of all geophysical datasets into a unified GIS platform, generating composite maps that identify high-priority target areas for sampling based on overlapping geological indicators.
Piston Coring & Grab Sampling
Physical sample collection from identified targets using piston core tubes and grab samplers to confirm the presence, grade, and distribution of gold within the seabed sediments.
No Mine. No Chemicals. No Tailing Dams.
GoldCoast's production model is designed to be lean, clean, and fast. Contract dredging vessels recover gold-bearing sediment from the ocean floor and process it onboard using gravity separation — the same fundamental principle that concentrated the gold in the first place.
~24 mo
Targeted time to first production
Offshore Dredging with Contract Vessels
No need to build a mine. GoldCoast's model uses contract dredging vessels that are already in operation globally, reducing upfront capital requirements.
100% Gravity Recovery
Gold is separated using gravity alone. No blasting. No cyanide. No chemical reagents. No tailing dams. The environmental footprint is fundamentally different from conventional mining.
~24 Months to Production
Where traditional hard-rock gold mines take 10 to 15 years to reach production, GoldCoast's offshore model targets first production within approximately 24 months of resource confirmation.
Proven Offshore Technology
The dredging and gravity separation technologies are well established. What's new is applying them to gold recovery on Ghana's continental shelf.
Offshore Mineral Extraction Is Proven
GoldCoast is not inventing a new category. The technology and operating models for offshore mineral recovery have been established for decades.
Debmarine Namibia
20+ years of offshore recovery
A joint venture between De Beers and the Government of Namibia has been recovering diamonds from the seafloor off Namibia's coast for over two decades using advanced marine mining vessels. Debmarine accounts for a significant portion of Namibia's total diamond production.
PT Timah
100+ years of offshore dredging
Indonesia's state-owned tin mining company has operated offshore dredging operations in the Bangka-Belitung islands for over a century. PT Timah is one of the world's largest integrated tin miners, with a fleet of dredges and suction vessels operating in shallow waters.
The Crown Estate (UK)
50+ years of marine extraction
The UK has maintained a mature offshore aggregate extraction industry for over half a century, with the Crown Estate licensing large areas of seabed. The industry supplies roughly 20% of England's sand and gravel needs from the marine environment.
Download the Technical Report
Get the full geological analysis, exploration program details, and production model in a single comprehensive document.