Denis Maale Bangnia
Tarkwa
Summary
Highly accomplished and results-driven Senior Exploration Geologist with over 10 years of progressive experience in mineral exploration, mining geology, hydrogeology, and geophysics within the gold mining sector. Proven expertise in leading drilling operations, optimizing resource identification through geological interpretation, and implementing robust QA/QC protocols. Adept at geological interpretation, data management, and fostering high-performing teams to consistently achieve exploration targets, and enhance operational efficiency.
Overview
18
18
years of professional experience
1
1
Certification
Work History
Senior Exploration Geologist
Goldfields Ghana Ltd, Tarkwa Mine
05.2016 - Current
- Supervised daily drilling operations for exploration projects, managed contractors, and ensured adherence to geological objectives, resulting in consistent achievement of 3,510 meters drilled per month, or a 95% improvement in core recovery.
- Developed and delivered comprehensive training programs for 10 junior geologists on advanced sampling protocols for placer and hydrothermal deposits, enhancing team competency and data integrity by 95%.
- Contributed to and co-authored weekly and monthly exploration reports, providing critical geological interpretations and progress updates to senior management, informing strategic decisions.
- Interpreted complex 2D drill and trench sections to inform strategic planning of in-pit infill drill holes, optimizing resource definition, and extraction efficiency.
- Collaborated on the strategic planning of Brownfield exploration programs, contributing to the identification of new drilling targets, and potential resource extensions.
- Managed and maintained comprehensive exploration databases, ensuring data integrity and accessibility for geological modeling and reporting, supporting efficient resource estimations.
- Championed and enforced stringent safety protocols across drilling operations, consistently maintaining safety standards above industry limits, and contributing to a zero-incident culture.
Geologist
Goldfields Ghana Limited, Tarkwa Mine
10.2015 - 04.2016
- Planned and supervised more than hundreds exploration and resource RC/DD drilling campaigns, ensuring project timelines and geological objectives were met within budget.
- Conducted detailed logging of RC chips and DD core, identifying and characterizing paleo placer and hydrothermal mineralization styles to support accurate resource modeling.
- Enforced rigorous industry safety measures across all field operations, contributing to a secure working environment and 100% compliance with regulatory standards.
- Authored daily and weekly geological reports, providing concise summaries of drilling progress, observations, and recommendations to project leads.
- Mentored and supervised X national service personnel, technicians, and samplers, enhancing their technical skills in geological data collection and field operations.
Geologist
Gold Field Ghana limited, Tarkwa Mine
08.2014 - 01.2015
- Assisted in exploration and resource drilling programs, contributing to the timely update of drill sections and geological models, and supporting resource definition.
- Performed detailed logging of RC chips and diamond core, accurately identifying Paleoplacer and hydrothermal mineralization styles for geological mapping and analysis.
- Conducted regular rig inspections and ensured strict adherence to industry-standard safety measures, minimizing operational risks, and ensuring compliance.
- Executed geological mapping and systematic sampling of trenches, collecting critical data for surface exploration and anomaly identification.
- Applied mining geology principles to oversee block and selective mining of hydrothermal and paleoplacer ore, optimizing ore recovery and grade control by 95%.
- Planned rip lines and precisely demarcated ore-waste contacts, significantly reducing dilution and maximizing ore grade during mining operations.
- Supervised geotechnicians in RC chip logging, ensuring data quality and consistency for geological analysis and reporting.
Hydrogeologist
Hydrogeologist Heizer Engineering Ltd
07.2013 - 09.2013
- Monitored and analyzed the drainage system of the tailing site, identifying potential environmental impacts and informing mitigation strategies to ensure regulatory compliance.
- Identified and selected optimal sites for test drilling near an inactive pit, facilitating comprehensive studies of groundwater outflow and inflow dynamics to inform water management plans.
Hydrogeologist and Field Engineer
Bizgeo Company Limited
01.2012 - 07.2013
- Supervised the drilling of 90 boreholes in Hohoe, ensuring adherence to project specifications and quality standards, completing the project X% ahead of schedule, within budget.
- Conducted detailed geological logging of all 90 boreholes, and authored comprehensive technical reports, providing critical data for hydrogeological assessments and project documentation.
Geophysicist and Field Engineer
AB-Serkoms Company Limited
01.2009 - 05.2011
- Managed and collected geophysical data in the field using terameter, ensuring data accuracy for subsurface imaging and interpretation.
- Utilized hydrogeological principles to strategically site boreholes, optimizing groundwater exploration success rates by 85%.
- Operated and maintained advanced geophysical instruments as Chief Operator, ensuring optimal performance and data acquisition during field surveys.
- Collected diverse geophysical and hydrogeological data in the field, contributing to comprehensive site assessments and project deliverables.
Project Work
University of Ghana
01.2008 - 01.2009
- Carried out my project work in Geophysics at the, Botanical gardens using the following methods,
- Electromagnetic
- Magnetics
- Electrical resistivity (profiling using Schlumberger, Wenner, Gradient arrays and sounding)
- Pump testing.
Education
Post Graduate Diploma in Mining Engineering -
University of Mines And Technology
11-2024
Bachelor of Science - Geological Engineering
University of Mines And Technology
01.2014
Skills
- Arc GIS (Intermediate)
- MapInfo- Basics
- Microsoft Office Access
- Leapfrog (Introduction and Intermediate)
Languages
English
First Language
Certification
- Drilling Skills for Geologists, Colin Rice Drilling Exploration Drilling Advisory- 2022
References
Bruno Kansake
Full Asset Potetial Manager
Anglogold Ashanti
Denver, Colorado USA
Phone: +15736129301
Email: bkansake@aga.gold
Prof. Anthony Ewusi
Geological Engineering Department,
University of Mines and Technology, Tarkwa Ghana
Tel. No +233 (0) 244 788848
Timeline
Senior Exploration Geologist
Goldfields Ghana Ltd, Tarkwa Mine
05.2016 - Current
Geologist
Goldfields Ghana Limited, Tarkwa Mine
10.2015 - 04.2016
Geologist
Gold Field Ghana limited, Tarkwa Mine
08.2014 - 01.2015
Hydrogeologist
Hydrogeologist Heizer Engineering Ltd
07.2013 - 09.2013
Hydrogeologist and Field Engineer
Bizgeo Company Limited
01.2012 - 07.2013
Geophysicist and Field Engineer
AB-Serkoms Company Limited
01.2009 - 05.2011
Project Work
University of Ghana
01.2008 - 01.2009
Post Graduate Diploma in Mining Engineering -
University of Mines And Technology
Bachelor of Science - Geological Engineering
University of Mines And Technology
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