ELOISE COPPER MINE 20 YEARS STRONG
1973 Magnetic high anomaly on government air-mag survey Ground magnetic and gravity profiles 1975 Coincident gravity anomaly Savage Exploration s search for magnetite 1984 BHP acquire the tenements and data Exploration geophysics and follow up drilling with downhole profiles 1988 Discovery of the Levuka Lode Resource drilling - 3.2Mt @ 5.8% Cu 1994 BHP sold the resource to Amalg Resources Ore definition construction of the portal and decline development 1996 First ore from the Levuka Lode
1996 First Ore Amalg changed name to Breakaway Resources remaining resources 3Mt @4.19% Cu 2003 Main decline extended to 400 Level FMR (Barminco) take over from Breakaway Resources 2007 Discovery of the Middle Western Lodes FMR becomes sole owner Copper price drops ground stability issues 2008 Care and Maintenance Feasibility of SLC mining method - Copper price improvement significantly 2011 Reopening of Eloise SLC in Deep levels and open stoping in upper Middle West Lodes - 2.5Mt @ 2.8% Cu 2013 Discovery of the Chloe Lode 2016 First ore from Chloe Mining from upper Western Lodes nearing completion
Eloise The Journey From a magnetic anomaly to 20 years mine life and still going
Mt Isa Inlier Eastern Succession Below the margin of the Eromanga Basin Closest surface expression in Selwyn Range Coincident with the Levuka Shear Zone Proterozoic Solders Cap Group Part of the Maranon Supergroup Eastern limb of the Middle Creek Anticline Williams Batholiths Geological Setting
Gravity Contours and Magnetics Image Middle Fault Offset Eloise Ore Lodes Tenement Boundary Gravity Highs Gravity High Levuka Tail Chloe West Lodes Levuka Elrose Eloise Middle Fault Eloise Deeps
Eloise Mine Geology Central Amphibolite Body Mineralized zones close to the contact of the amphibolite and sedimentary package Levuka Elrose Tail Chloe Psammitic sediments Mineralisation hosted in quartz biotite schists Metamorphosed to Amphibolite Facies Structurally Controlled
Mineralogy & Alteration Peak metamorphism: 550 c, 3.5Kbar @ 1545 Ma (?) Regional albite alteration, D2 structures (1) Fe-K (2) alteration: Hornblende, biotite + minor magnetite, 1521-1530 Ma Mineralisation 1530 1514 Chlorite, Pyrrhotite, Chalcopyrite, Magnetite & Pyrite with Calcite and Quartz Copper Mineral almost exclusively Chalcopyrite with rare Bornite Paragenesis from Baker et al 2001
Deeps High Grade Ore Face
Middle West Ore Face
Eloise Copper Mine Ore Lodes Early Production from Levuka & Elrose Portal Levuka South On the other side of the Middle Fault Eloise West and North West Eloise Below the Ramsey Fault Start of Eloise Deeps (400RL) Deeps from 1 Level Below the Hodkinson Fault Levuka & Elrose Eloise Northwest Middle West Lower Middle West Sheila 40 & 42 Lodes Eloise West Chloe Levuka South Eloise Middle West and Lower Middle West Deeps Chloe and Levuka Tail
Eloise Copper Mine 2016 East and West Lodes Central Amphibolite Current Development Z175 SLC Deepest Production Decline Developing Towards Z200 Next Drill Position Z195 RAD Wester Lodes Middle West Lower Middle West Portal Amphibolite Eastern Lodes Levuka Tail Chloe Lodes Deeps Z175
25m Vertical Levels Sub-Level Cave Longitudinal Retreat Deeps Development 1L Z25L Z50L Z100L Alternating 2 & 3 Drives per Level 200,00 to 240,00t or Ore per Level Average 80% Metal Recovery Current Decline Position Z195 RAD Drill Position Z125L Z150L Z175L
What Makes Eloise Economical in 2016 Private Ownership Direct Management and Communication No Frills Operation Multi Skilled and Flexible Workforce Small Dedicated Tech Services Team Focus on Production and Functionality High Quality Copper Concentrate
Challenges Deep Ore Finding Auxiliary Ore Higher Up Drill Positions to Define Ore at Depth Seismicity Heat and Ventilation Aging Mine Infrastructure
End Product