Senior Geological Modeling Engineer

Description

Position Summary: Administer and coordinate the preparation and updating of 2D/3D geological models and mineral resource estimation for mining planning. Key Highlights: 1. Experience in 2D and 3D geological modeling 2. Proficiency in MinePlan and LeapFrog software 3. Management of mineral resource estimation **POSITION MISSION:** Administer, control, and coordinate work related to the preparation and updating of 2D and 3D geological models (MinePlan and LeapFrog), medium-term mineral resource estimation (based on double-bench and blast-hole drilling) and long-term mineral resource estimation (based on diamond drilling) for the Toromocho deposit, and deliver updated medium-term and long-term model information to the Mineral Control Engineer and Planning Team, thereby supporting the preparation of weekly, monthly, and annual mining plans in accordance with guidelines and procedures established by the Modeling Engineer while maintaining information confidentiality. **RESPONSIBILITIES:** * Prepare and update 2D and 3D geological models (alteration, lithology, and grade) using blast-hole data (short-term), double-bench drilling (30m), historical DDH, bench mapping, etc. (medium-term), and deliver the updated medium-term model (lithology, alteration, % lithology, % alteration, metallurgy, XRD, ROPH) with projections to Planning. * Evaluate and prepare monthly reconciliation reports (tonnage, grades, geology) across short-, medium-, and long-term models versus concentrator plant and dispatch data; coordinate with Planning and Production Control to ensure proper reconciliation of materials sent to the plant. Owner of the medium- and long-term resource models and their modifications. * Administer, execute, and coordinate work related to geological modeling and geological resource estimation for the Toromocho deposit, applying geostatistical methods, specialized software, and database quality control. If specialized consulting firms are engaged, ensure that geological interpretation, geological modeling, and mineral resource estimation comply with appropriate standards (e.g., JORC). Review and validate Competent Person Reports (CPR) and resource estimation reports. * Evaluate and verify estimation methods for the medium-term model (lithology, alteration, mineralization, material types, Cu%, As%, Ag g/t, Mo%, Zn%, Fe%, hardness parameters, density updates, talc XRD). * Design and update diamond drilling programs (INFILL, GEOMETALLURGY, RESERVE EXPANSION); support scope development for diamond drilling activities; participate in technical evaluation of contractors bidding for diamond drilling services, chemical analysis, gyroscopic surveying, resource estimation, etc. * Prepare and submit monthly resource inventory reports indicating measured, indicated, and inferred material tonnages. * Update long-term 2D and 3D geological interpretations for area projects (lithology, alteration, mineral zones, mineralogy) using blast-hole logging, slope mapping, logging and re-logging of historical drill core, resource models, chemical assays, XRD, XRF, core photographs, etc.; incorporate these new geological units into long-, medium-, and short-term models. E.g., Breccia Units. * Validate medium-term information at the pit face in coordination with Ore Control and Mine Geologists. * Evaluate and develop re-logging and sampling plans to update geological models for medium- and long-term contaminant and geometallurgical variables. * Prepare EW, NS, and geological plan sections, grade sections, contaminant sections, mineralogical sections, etc., for both medium- and long-term models. In 2007, Aluminum Corporation of China (CHINALCO) established Minera Chinalco Perú S.A. (Chinalco Perú) to construct, develop, and operate the Toromocho copper mega-project. The Toromocho Mining Unit is the first world-class copper mine fully executed and developed from inception overseas by a Chinese company. It is located in the district of Morococha, Yauli Province, Junín Department, at an elevation exceeding 4,500 meters above sea level. It operates a concentrator plant processing approximately 117,200 tonnes of ore per day. Today, Chinalco Perú is one of China Copper’s most important enterprises and CHINALCO’s largest wholly-owned foreign subsidiary. Requirements **1.\- Degrees:** GEOLOGICAL ENGINEERING, GEOLOGY, MINING ENGINEERING **2.\- Experience:** 8 years overall, 5 years in the mining sector, 3 years in this position **3.\- Technical Tools:** MINING, GEOLOGY AND PLANNING COMPUTER TOOLS (Advanced), EXCEL (Advanced), Leapfrog (Advanced), MINESIGHT (Advanced) **4.\- Certifications:** Diploma in Geostatistics **5.\- Licenses:** Licensed Professional Engineer, Registered Member of Professional Association, Class A1 Driver's License **KNOWLEDGE:** * Geology of Cu porphyry and Mg-skarn deposits * Blast-hole, RC (reverse circulation), and DDH (diamond drill hole) logging and sampling * Geological mapping of slopes and benches * QA/QC of blast-hole and RC and/or DDH samples * Short-, medium-, and long-term 3D geological modeling * JORC Code for mineral resource estimation * Reconciliation across long-, medium-, and short-term models * Occupational Health and Safety (OHS) regulations for mining applied to geology Benefits Termination benefits MCPICA for competitions as stipulated by law Ben