Geologist Open-Pit Production (Porphyry Copper)

ASARCO • Kearny, AZ

9d

About The Position

ASARCO Ray Mine is seeking an enthusiastic Mine Geologist to support copper production at a world-class porphyry copper deposit. The role supports safe and efficient ore extraction at an autonomous, high-tonnage open-pit mine that processes sulfide and oxide ores. It provides geological interpretation, ore-boundary definition, and field validation so ore-control decisions are informed by field observations and geological data, and ore routing supports Mine-to-Mill optimization and LSXEW leach-material performance. The position links geology with operations, planning, and metallurgy to generate site-wide value. It reports to the Chief Mine Geologist.

Candidates must have a current, valid driver’s license. Employment offers are contingent on a successful criminal background check and a pre-employment physical, including a drug screen. ASARCO LLC provides equal opportunity without regard to protected characteristics under applicable local, state, or federal law.

Requirements

• Bachelor’s degree in Geology, Geological Engineering, or a related discipline.
• At least 2 years of hands-on open-pit production geology experience in operating porphyry copper systems, including daily ore control and grade reconciliation.
• Working knowledge of sulfide/oxide transitions, heap-leach behavior, and Mine-to-Mill fragmentation concepts in open-pit environments.
• Hands-on proficiency with operational geological and mine-planning software such as Leapfrog Geo, Maptek Vulcan, or MinePlan.
• Strong observational skills and ability to work cross-functionally in active pit and office settings.
• Effective communication and technical documentation skills.
• Current, valid driver’s license.
• Successful criminal background check and pre-employment physical, including a drug screen, as conditions of an employment offer.

Responsibilities

• Execute daily open-pit ore control, including rapid ore/waste boundary updates, blast-hole logging, and active mining-shovel support to minimize dilution.
• Conduct pit mapping, geological logging, and sampling focused on lithology, structure, alteration, and mineralization for accurate material classification.
• Partner with Drill & Blast, Short-Range Mine Planning, Operations, and Processing teams to support Mine-to-Mill optimization.
• Collaborate with LSXEW and Metallurgy teams to optimize heap-leach material selection, copper solubility, and acid-consumption compatibility.
• Assist in updating 3D operational geology models in Leapfrog Geo under the direction of the Chief Geologist.
• Participate in grade reconciliation, QA/QC of sampling procedures, and data-integrity reviews.
• Ensure field and documentation practices comply with site HSE and technical reporting standards.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level