Position Summary

The Senior Geologist provides senior-level geological support to TANCO’s underground mining and exploration activities. The position is responsible for providing accurate and timely geological information to support mine production, grade control, exploration, drilling and geological interpretation.

The Senior Geologist works closely with the Chief Geologist, Mine Operations, Engineering and other technical personnel while providing technical guidance to less experienced members of the geology team.

Job Requirements – Principal Responsibilities

Production Geology

- Conduct and oversee geological mapping and sampling in underground development and production areas.
- Support grade control activities, including sampling, assay validation, grade estimation and ore identification.
- Monitor geological conditions and provide timely geological information to Mine Operations.
- Support ore blending, grade forecasting and dilution estimates.
- Work collaboratively with Mine Operations and Engineering to support mining plans and production objectives.
- Maintain geological plans, sections, interpretations and production records.
- Identify opportunities to improve geological and grade-control practices.

These responsibilities build on TANCO’s existing Production/Exploration Geologist duties, including underground mapping and sampling, grade control, assay validation, grade estimation, dilution estimates and grade forecasting.

Exploration & Drilling

- Support the planning and execution of surface and underground exploration programs.
- Conduct geological mapping, sampling, core logging and structural interpretation.
- Identify and evaluate exploration targets.
- Coordinate and supervise diamond drilling activities as assigned.
- Review and interpret drilling and exploration results.
- Ensure geological and drilling data is accurately collected and documented.
- Coordinate contractors and internal resources to support safe and effective exploration programs.
- Prepare geological maps, sections,



models and technical reports.

TANCO’s existing geology specifications include surface and underground diamond drilling, exploration programs, core logging, mapping, sampling and geological modelling.

Geological Data & Modelling

- Maintain and review geological databases, assay information, drilling records, plans and sections.
- Analyze and interpret geological data to support operational and exploration decisions.
- Develop and update geological models using applicable geological and mine-planning software.
- Ensure geological information is accurate, complete and appropriately documented.
- Support geological interpretation for mine planning and resource-related activities.
- Assist in improving geological data management and modelling practices.

TANCO’s current geology specifications reference AutoCAD, Datamine, Promine, Leapfrog, Surpac and GIS applications for geological work.

Technical Leadership

- Provide technical guidance and mentorship to geologists and geological technicians.
- Coordinating day-to-day geological priorities.
- Review geological work to promote quality, accuracy and consistency.
- Take ownership of assigned geological projects and follow them through to completion.
- Communicate geological information effectively across Mine Operations, Engineering and other departments.
- Promote continuous improvement within the geology function.

Safety & Compliance

- Lead by example and perform all duties in a safe and professional manner.
- Ensure geological and drilling activities are completed safely and in accordance with site requirements.
- Participate in required safety inspections and activities.




- Work in compliance with applicable occupational health and safety requirements, mining regulations and company policies.
- Identify hazards and support appropriate corrective actions.

Competencies – Knowledge, Skills & Behaviours

- Strong practical knowledge of underground mine geology.
- Knowledge of production geology, grade control, exploration and diamond drilling.
- Strong geological interpretation and problem-solving skills.
- Experience with geological modelling and geological databases.
- Ability to work effectively with operational and technical teams.
- Ability to mentor and provide technical guidance to less experienced employees.
- Robust written and verbal communication skills.
- High level of initiative, accountability and attention to detail.
- Knowledge of pegmatite geology and mineralogy considered an asset.
- Demonstrates a strong commitment to safety and continuous improvement.

Education & Experience

- Bachelor’s degree in Geology, Geological Engineering or a related field.
- Approximately 10 years of relevant mining geology and/or exploration experience, preferably in an underground mining environment.
- P.Geo. designation or eligibility for registration in Manitoba preferred.
- Experience with production geology, grade control, diamond drilling and geological modelling.
- Experience with rare-element pegmatites or lithium, cesium and tantalum mineralization considered an asset.

Job Types: Full-time, Permanent

Pay: From $120,000.00 per year

Benefits:

- Casual dress
- Company events
- Company pension
- Dental care
- Disability insurance
- Employee assistance program
- Extended health care
- Life insurance
- Paid time off
- Tuition reimbursement
- Vision care
- Wellness program

Ability to commute/relocate:

- Lac du Bonnet, MB: reliably commute or plan to relocate before starting work (required)

Licence/Certification:

- Drivers License (required)

Work Location: In person

📌 Senior Geologist (Lac du Bonnet)
🏢 Tantalum Mining Corporation of Canada
📍 Lac du Bonnet