Gallery

Boudinaged Quartz Vein

Chlorite-pyrite-filled boudin necks and late carbonate veins from an orogenic gold deposit – Ghana

Drill Core Studies

Extensive structural review of drill core from a complex orogenic gold deposit to better define structural controls and exploration potential – Ghana

Near-mine Exploration Under Cover

Mapping of the controlling structures on gold mineralisation within open pits and extrapolation of these features into surrounding areas through interpretation of geophysical data allows higher-confidence near-mine targets to be generated – Guinea

Major Post-mineral Fault

Margin of a major transpressional fault zone that offsets orogenic gold mineralisation – Burkina Faso

Minor Fold Crenulations

Centimetre-scale crenulations preserved by a quartz vein in a folded and faulted, flysch-hosted, gold deposit – Kazakhstan

Artisanal Miners Targeting High-grade Gold

Artisanal miners targeting a high-grade contact in an abandoned open pit – Guinea

Post-Mineral Fault Breccia

Cohesive fault breccia within a post-mineralisation strike-slip fault. The breccia contains clasts of mineralised smoky quartz and graphitic sediments – Burkina Faso

Pit Lake in Dormant Open Pit

Structural mapping was undertaken on safely-accessed benches and ramps as part of a wider camp-scale structural evaluation – Guinea

Minor Strike-slip Fault and Associated Veins

Sinistral-oblique-normal fault with minor relay and extensive calcite veining – Somerset, UK

Winterised Diamond Drill Rig

Drilling in late-winter for industrial minerals – Norway

Calcite-filled Tension Gashes

Calcite-filled tension gash arrays (top-to-left apparent shear sense) hosted by a crenulated graphitic schist – Kazakhstan

Dykes and Syn-Magmatic Shear Zone

Mafic dykes and syn-magmatic shear zone with left-side-up shear sense cutting a monzonite pluton in an open pit gold operation. Drill rig for scale – Russia

Mentoring Project Staff

Working along-side project geologists to aid collection of meaningful structural data – Burkina Faso

Saddle-reef Copper Mineralisation

Saddle-reef style copper mineralisation on the hinge of a minor fold within laminated siltstones – Namibia

Structurally-controlled Wedge Failure

Wedge failure within the upper benches of an open pit operation controlled by the intersection of faults and faulted-dykes – Russia

Cleavage-hosted Copper Mineralisation

Copper mineralisation (bornite and secondary copper minerals) within axial planar cleavage in fine-grained sandstones – Namibia

Structurally-controlled Bench-scale Failure

Minor shear zone in an Archean banded iron formation under-cutting a bench face – Sierra Leone

Cryptic Folds in an Iron Skarn

Tight folds in Proterozoic sediments that have been subsequently replaced by magnetite and clinopyroxene – Sweden

Fault-related Groundwater

Groundwater-seep along a major fault with an open-pit face. Field of view is approximately 8m – Kazakhstan

Near-mine Exploration in Taiga Forest

Field transport during near mine exploration and structural analysis of exposures in a region of sub-arctic forest – Russia

Structural Analysis and Field Mapping

Exposure of a folded garnet-rutile-bearing eclogite – Norway

Major Post-mineralisation Fault

Major fault surface displaying remnants of graphitic fault rocks. The shear sense on the fault is sinistral-oblique-normal – Burkina Faso

Digital Mapping of Exploration Trenches

Mapping of trench exposures using a ruggedised, GPS-enabled tablet – Russia

Folded Banded Iron Formation

Split drill core showing folded silica- and iron oxide-rich layers in a highly-deformed Archean BIF deposit. Field of view is approximately 12 cm – Central Africa

Fault-hosted Gold in Saprock

Highly-weathered flysch succession in an abandoned open pit. A pair of fault zones have been targeted by artisanal miners for their higher gold grades – Guinea

Highly-deformed Birimian Sediments

Polyphase deformation of sericite-quartz-carbonate altered volcano-sedimentary rocks in drill core from an advanced gold project, Boromo Greenstone Belt – Burkina Faso

Major Post-mineral Fault

Margin of a major transpressional fault zone that offsets orogenic gold mineralisation – Burkina Faso

High-grade Laminated Quartz Reef

Sectional view of a laminated quartz vein which has been internally sheared along graphitic partings. The vein is the main orebody of a high-grade underground gold mine in the Ashanti Trend. Field of view is approximately 1.5 m – Ghana

Ductilely-deformed Quartz-pebble Conglomerate

Ductile L-S fabric preserved by in a quartz-pebble conglomerate. Field of view is approximately 60 cm – Namibia

Gold-bearing Breccia Interval

Underground exploration drillhole interval of gold-bearing hydrothermal breccia veins (pyrite-pyrrhotite) that mantle garnet-chlorite-altered granodiorite clasts – Russia

Small-scale Dilational Jogs

Pull-apart structures (or dilational jogs) along a minor dextral fault in Lower Jurassic limestone – UK

Artisanal Mine Shaft

Shaft and hand-winch operated by artisanal miners – Burkina Faso

Open Pit Geological Mapping

Digital structural mapping of an open pit gold mine. The large, low-grade oxide gold resource is hosted by a folded and thrusted sandstone succession – Russia

Sheared “Megacrystic Basalt”

Sheared “megacrystic basalt” within a Paleoproterozoic Birimian greenstone terrane – Burkina-Faso

Large-scale Folds in Open Pit

Traces of shallowly-plunging fold structures in a highly-deformed oxide portion of a Birimian gold deposit. Here, post-mineral folding is principal control on high-grade shoots – Burkina Faso

Fold-hosted Sulphide Mineralisation

Remobilised pyrite precipitated in the hinge of an asymmetric synform in chlorite-sericite-carbonate-altered metavolcanic rocks – Ghana

Boudinaged Quartz Vein

Chlorite-pyrite-filled boudin necks and late carbonate veins from an orogenic gold deposit – Ghana

Drill Core Studies

Extensive structural review of drill core from a complex orogenic gold deposit to better define structural controls and exploration potential – Ghana

Near-mine Exploration Under Cover

Mapping of the controlling structures on gold mineralisation within open pits and extrapolation of these features into surrounding areas through interpretation of geophysical data allows higher-confidence near-mine targets to be generated – Guinea

Major Post-mineral Fault

Margin of a major transpressional fault zone that offsets orogenic gold mineralisation – Burkina Faso

Minor Fold Crenulations

Centimetre-scale crenulations preserved by a quartz vein in a folded and faulted, flysch-hosted, gold deposit – Kazakhstan

Artisanal Miners Targeting High-grade Gold

Artisanal miners targeting a high-grade contact in an abandoned open pit – Guinea

Post-Mineral Fault Breccia

Cohesive fault breccia within a post-mineralisation strike-slip fault. The breccia contains clasts of mineralised smoky quartz and graphitic sediments – Burkina Faso

Pit Lake in Dormant Open Pit

Structural mapping was undertaken on safely-accessed benches and ramps as part of a wider camp-scale structural evaluation – Guinea

Minor Strike-slip Fault and Associated Veins

Sinistral-oblique-normal fault with minor relay and extensive calcite veining – Somerset, UK

Winterised Diamond Drill Rig

Drilling in late-winter for industrial minerals – Norway

Calcite-filled Tension Gashes

Calcite-filled tension gash arrays (top-to-left apparent shear sense) hosted by a crenulated graphitic schist – Kazakhstan

Dykes and Syn-Magmatic Shear Zone

Mafic dykes and syn-magmatic shear zone with left-side-up shear sense cutting a monzonite pluton in an open pit gold operation. Drill rig for scale – Russia

Mentoring Project Staff

Working along-side project geologists to aid collection of meaningful structural data – Burkina Faso

Saddle-reef Copper Mineralisation

Saddle-reef style copper mineralisation on the hinge of a minor fold within laminated siltstones – Namibia

Structurally-controlled Wedge Failure

Wedge failure within the upper benches of an open pit operation controlled by the intersection of faults and faulted-dykes – Russia

Cleavage-hosted Copper Mineralisation

Copper mineralisation (bornite and secondary copper minerals) within axial planar cleavage in fine-grained sandstones – Namibia

Structurally-controlled Bench-scale Failure

Minor shear zone in an Archean banded iron formation under-cutting a bench face – Sierra Leone

Cryptic Folds in an Iron Skarn

Tight folds in Proterozoic sediments that have been subsequently replaced by magnetite and clinopyroxene – Sweden

Fault-related Groundwater

Groundwater-seep along a major fault with an open-pit face. Field of view is approximately 8m – Kazakhstan

Near-mine Exploration in Taiga Forest

Field transport during near mine exploration and structural analysis of exposures in a region of sub-arctic forest – Russia

Structural Analysis and Field Mapping

Exposure of a folded garnet-rutile-bearing eclogite – Norway

Major Post-mineralisation Fault

Major fault surface displaying remnants of graphitic fault rocks. The shear sense on the fault is sinistral-oblique-normal – Burkina Faso

Digital Mapping of Exploration Trenches

Mapping of trench exposures using a ruggedised, GPS-enabled tablet – Russia

Folded Banded Iron Formation

Split drill core showing folded silica- and iron oxide-rich layers in a highly-deformed Archean BIF deposit. Field of view is approximately 12 cm – Central Africa

Fault-hosted Gold in Saprock

Highly-weathered flysch succession in an abandoned open pit. A pair of fault zones have been targeted by artisanal miners for their higher gold grades – Guinea

Highly-deformed Birimian Sediments

Polyphase deformation of sericite-quartz-carbonate altered volcano-sedimentary rocks in drill core from an advanced gold project, Boromo Greenstone Belt – Burkina Faso

Major Post-mineral Fault

Margin of a major transpressional fault zone that offsets orogenic gold mineralisation – Burkina Faso

High-grade Laminated Quartz Reef

Sectional view of a laminated quartz vein which has been internally sheared along graphitic partings. The vein is the main orebody of a high-grade underground gold mine in the Ashanti Trend. Field of view is approximately 1.5 m – Ghana

Ductilely-deformed Quartz-pebble Conglomerate

Ductile L-S fabric preserved by in a quartz-pebble conglomerate. Field of view is approximately 60 cm – Namibia

Gold-bearing Breccia Interval

Underground exploration drillhole interval of gold-bearing hydrothermal breccia veins (pyrite-pyrrhotite) that mantle garnet-chlorite-altered granodiorite clasts – Russia

Small-scale Dilational Jogs

Pull-apart structures (or dilational jogs) along a minor dextral fault in Lower Jurassic limestone – UK

Artisanal Mine Shaft

Shaft and hand-winch operated by artisanal miners – Burkina Faso

Open Pit Geological Mapping

Digital structural mapping of an open pit gold mine. The large, low-grade oxide gold resource is hosted by a folded and thrusted sandstone succession – Russia

Sheared “Megacrystic Basalt”

Sheared “megacrystic basalt” within a Paleoproterozoic Birimian greenstone terrane – Burkina-Faso

Large-scale Folds in Open Pit

Traces of shallowly-plunging fold structures in a highly-deformed oxide portion of a Birimian gold deposit. Here, post-mineral folding is principal control on high-grade shoots – Burkina Faso

Fold-hosted Sulphide Mineralisation

Remobilised pyrite precipitated in the hinge of an asymmetric synform in chlorite-sericite-carbonate-altered metavolcanic rocks – Ghana

Boudinaged Quartz Vein

Chlorite-pyrite-filled boudin necks and late carbonate veins from an orogenic gold deposit – Ghana

Drill Core Studies

Extensive structural review of drill core from a complex orogenic gold deposit to better define structural controls and exploration potential – Ghana

Near-mine Exploration Under Cover

Mapping of the controlling structures on gold mineralisation within open pits and extrapolation of these features into surrounding areas through interpretation of geophysical data allows higher-confidence near-mine targets to be generated – Guinea

Major Post-mineral Fault

Margin of a major transpressional fault zone that offsets orogenic gold mineralisation – Burkina Faso

Minor Fold Crenulations

Centimetre-scale crenulations preserved by a quartz vein in a folded and faulted, flysch-hosted, gold deposit – Kazakhstan

Artisanal Miners Targeting High-grade Gold

Artisanal miners targeting a high-grade contact in an abandoned open pit – Guinea

Post-Mineral Fault Breccia

Cohesive fault breccia within a post-mineralisation strike-slip fault. The breccia contains clasts of mineralised smoky quartz and graphitic sediments – Burkina Faso

Pit Lake in Dormant Open Pit

Structural mapping was undertaken on safely-accessed benches and ramps as part of a wider camp-scale structural evaluation – Guinea

Minor Strike-slip Fault and Associated Veins

Sinistral-oblique-normal fault with minor relay and extensive calcite veining – Somerset, UK

Winterised Diamond Drill Rig

Drilling in late-winter for industrial minerals – Norway

Calcite-filled Tension Gashes

Calcite-filled tension gash arrays (top-to-left apparent shear sense) hosted by a crenulated graphitic schist – Kazakhstan

Dykes and Syn-Magmatic Shear Zone

Mafic dykes and syn-magmatic shear zone with left-side-up shear sense cutting a monzonite pluton in an open pit gold operation. Drill rig for scale – Russia

Mentoring Project Staff

Working along-side project geologists to aid collection of meaningful structural data – Burkina Faso

Saddle-reef Copper Mineralisation

Saddle-reef style copper mineralisation on the hinge of a minor fold within laminated siltstones – Namibia

Structurally-controlled Wedge Failure

Wedge failure within the upper benches of an open pit operation controlled by the intersection of faults and faulted-dykes – Russia

Cleavage-hosted Copper Mineralisation

Copper mineralisation (bornite and secondary copper minerals) within axial planar cleavage in fine-grained sandstones – Namibia

Structurally-controlled Bench-scale Failure

Minor shear zone in an Archean banded iron formation under-cutting a bench face – Sierra Leone

Cryptic Folds in an Iron Skarn

Tight folds in Proterozoic sediments that have been subsequently replaced by magnetite and clinopyroxene – Sweden

Fault-related Groundwater

Groundwater-seep along a major fault with an open-pit face. Field of view is approximately 8m – Kazakhstan

Near-mine Exploration in Taiga Forest

Field transport during near mine exploration and structural analysis of exposures in a region of sub-arctic forest – Russia

Structural Analysis and Field Mapping

Exposure of a folded garnet-rutile-bearing eclogite – Norway

Major Post-mineralisation Fault

Major fault surface displaying remnants of graphitic fault rocks. The shear sense on the fault is sinistral-oblique-normal – Burkina Faso

Digital Mapping of Exploration Trenches

Mapping of trench exposures using a ruggedised, GPS-enabled tablet – Russia

Folded Banded Iron Formation

Split drill core showing folded silica- and iron oxide-rich layers in a highly-deformed Archean BIF deposit. Field of view is approximately 12 cm – Central Africa

Fault-hosted Gold in Saprock

Highly-weathered flysch succession in an abandoned open pit. A pair of fault zones have been targeted by artisanal miners for their higher gold grades – Guinea

Highly-deformed Birimian Sediments

Polyphase deformation of sericite-quartz-carbonate altered volcano-sedimentary rocks in drill core from an advanced gold project, Boromo Greenstone Belt – Burkina Faso

Major Post-mineral Fault

Margin of a major transpressional fault zone that offsets orogenic gold mineralisation – Burkina Faso

High-grade Laminated Quartz Reef

Sectional view of a laminated quartz vein which has been internally sheared along graphitic partings. The vein is the main orebody of a high-grade underground gold mine in the Ashanti Trend. Field of view is approximately 1.5 m – Ghana

Ductilely-deformed Quartz-pebble Conglomerate

Ductile L-S fabric preserved by in a quartz-pebble conglomerate. Field of view is approximately 60 cm – Namibia

Gold-bearing Breccia Interval

Underground exploration drillhole interval of gold-bearing hydrothermal breccia veins (pyrite-pyrrhotite) that mantle garnet-chlorite-altered granodiorite clasts – Russia

Small-scale Dilational Jogs

Pull-apart structures (or dilational jogs) along a minor dextral fault in Lower Jurassic limestone – UK

Artisanal Mine Shaft

Shaft and hand-winch operated by artisanal miners – Burkina Faso

Open Pit Geological Mapping

Digital structural mapping of an open pit gold mine. The large, low-grade oxide gold resource is hosted by a folded and thrusted sandstone succession – Russia

Sheared “Megacrystic Basalt”

Sheared “megacrystic basalt” within a Paleoproterozoic Birimian greenstone terrane – Burkina-Faso

Large-scale Folds in Open Pit

Traces of shallowly-plunging fold structures in a highly-deformed oxide portion of a Birimian gold deposit. Here, post-mineral folding is principal control on high-grade shoots – Burkina Faso

Fold-hosted Sulphide Mineralisation

Remobilised pyrite precipitated in the hinge of an asymmetric synform in chlorite-sericite-carbonate-altered metavolcanic rocks – Ghana

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