Chief Geologist
ASARCO · Sahuarita, Arizona, US
The Chief Geologist leads all mine‑site geological activities for a high‑tonnage open‑pit, Cu-porphyry-skarn, processing sulfide ore by flotation.
Job description
The Chief Geologist leads all mine‑site geological activities for a high‑tonnage open‑pit, Cu-porphyry-skarn, processing sulfide ore by flotation. Emphasis is on short‑range grade control and ore routing, geometallurgical domaining, resource growth, rigorous data collection/QAQC, and timely geological inputs to mine planning. The role reports to the Technical Services Manager and collaborates closely with the Corporate Technical Team and Corporate Resource Manager. The position operates with minimal supervision, exercises sound professional judgment, and demonstrates visible leadership in safety, environmental stewardship, and cross‑functional teamwork with Operations, Planning, Geotechnical, Hydrogeology, and Metallurgy. Duties & Responsibilities: - Lead and supervise the Mine Geology and Ore Control teams (geologists, technicians, samplers); ensure contemporary training, competency, and an inclusive, high‑performance culture - Oversee daily geological mapping, sampling, and logging- capturing lithology, structure, alteration, and mineralization at appropriate scales for ore control and reconciliation. - Own short‑range ore control: manage blasthole sampling and assay QAQC (CRMs,...