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Glebe Mines Ltd. Based at Cavendish Mill, Derbyshire Mining Operations in Peak District National Park Cavendish Mill Processing Plant Principally UK Customer base UK self sufficient in AG production Business Development - Mining Projects Canada Scotland.
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Glebe Mines Ltd • Based at Cavendish Mill, Derbyshire • Mining Operations in Peak District National Park • Cavendish Mill Processing Plant • Principally UK Customer base • UK self sufficient in AG production • Business Development - Mining Projects • Canada • Scotland
Glebe Mines Ltd • Commercial • £7M/a Turnover • £2.5M/a contribution to local economy • Employment • 57 Direct Staff • 25 Direct Contract Staff • Total 130 Direct and Indirect Jobs
Glebe Mines Ltd • Products • Acid Grade Fluorspar 60-65kte/a • Barytes 15-20kte/a • Lead Concentrate 1kte/a • Limestone Aggregate 150kte/a
Glebe Mines Ltd • Geological Setting • Carboniferous Limestone Host • Vertically Orientated Fissure Fill Deposits • +6km Length • Up to 30m wide • Worked to 150m bgl • Veins Truncated by Volcanics/ Shales • Replacement Deposits also significant • Peak District NP is only UK source of Fluorspar
Glebe Mines Ltd • Crude Ore Supply • Surface & Underground Extraction • 98% Supplied from GML Operations • Operational Management • Planning • H&S • Environmental
Watersaw Mine Arthurton West No.4 Tailings Lagoon Bow Rake Longstone Edge 2001 Deep Rake
Glebe Mines Ltd • Underground Operations • Milldam - C&M (under review) • Watersaw - Active • Trackless Sub-Level caving method • 16te rubber tyred u/g dump trucks • 25,000 te/a (5% of supply to Cavendish Mill) • 6 men employed by GML • 5y Plan - 25% of overall supply
Glebe Mines Ltd • Surface Open Pits • Principal GML Operations • Arthurton West (150,000te/a) • Bow Rake (50,000 te/a) • Winster (100,000 te/a) • No.1 Dam (100,000 te/a) • 30 - 45 te 360o Hydraulic Excavators • 25 - 40 te Articulated Dump Trucks
Deep Rake Bow Rake Longstone Edge
Glebe Mines Ltd • Surface Open Pits - Management • Sensitive Environment (Peak District National Park) • Overburden Minimisation • Narrow Open Pits • Increased Operating Costs • Geotechnical Assessments • Pre-shear blasting • Rock bolts/ mesh • High Access Scaling Teams • High Degree Management Control
Bow Rake High Wall Pre-Shear Face
Glebe Mines Ltd Typical Open Pits - Sustainable Developments • Small scale, transient and of limited duration - a temporary land-use • Full restoration, often with added bio-diversity • Minimal environmental impacts verses significant local and national economic contribution • Guaranteed restoration (3-fold management)
Glebe Mines Ltd • Restoration Mechanisms • Progressive (direct operating cost) • Accounting Provision (FRS12 - levied on each tonne) • Insurance Bonds (ring fenced from company accounts)
Deep Rake Restoration
Landform Restoration Deep Rake
Glebe Mines Ltd • Planning • National Park Environment • National Significance of Minerals • Relatively Small Nature of Deposits • Frequent Planning Applications • EIA Requirements • Monitoring • e.g Winster Moor Open Pit
Glebe Mines Ltd Winster Moor Open Pit • +4 years from exploration to consent • 7.1Ha, 376,000 tonnes • 4 years extraction with progressive restoration • 1 year final restoration to agriculture • Restoration bond • S106 - Surrender of Mineral Rights on Longstone Edge
Glebe Mines Ltd • Cavendish Mill Process • 500,000 te/a crude ore • Crushing • Dense Media Separation • Grinding • Froth Flotation • Filtration • Drying
Cavendish Mill Crude Ore Stockpile
Dense Media Separation
Froth Flotation Fluorspar & Lead
Flotation Cell Lead
Vacuum Filtration
No.4 Tailings Lagoon Deep Rake Longstone Edge 2001
Deep Rake 2003
Glebe Mines Ltd • Research & Development • FIESTA £750k (3 years) • POLYTRANS €5.5M (2 years) • MIRO • MAUK • University of Leicester • University of Leeds