regionalgeology

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Published on November 22, 2007

Author: Chloe

Source: authorstream.com

European Nickel PLC:  European Nickel PLC 21st October 2004 Site visit Regional Geology – Turkey & Balkans Chris Masurenko Ophiolite Belt Balkan & Turkey:  Ophiolite Belt Balkan & Turkey General Layout of Ophiolites SE Eurasian Ophiolite Belt:  General Layout of Ophiolites SE Eurasian Ophiolite Belt Ocean crust remains Collision process of various tectonical plates = ocean crust plate vs. Continental plate Obduction of Ocean crust Generally rich in Cr, Ni and PGEs etc. Supergene enrichment of metallic minerals due to severe laterisation processes in tropical climate Quarternary: Sand, Clays, Cgl Tertiary Sediments: Sst, Limestone Laterisation process Upper Cretaceous to Eocene/Miocene Cretaceous: ophiolite complex , igneous intrusiva Upper Triassic: dolomitic limestone OPHIOLITE COMPLEX Silicious Crust Zone Hematite Zone Limonite Zone Altered Serpentinite Zone Serpentinite/Harzburgit Geology of Caldag Deposit:  Geology of Caldag Deposit Quarternary: Sands, Conglomerates <100 m Tertiary:Limestones, Metaquarzites, Schists, Marbles ~150 m Miocene-Eocene: Ni-Fe Laterites Cretaceous: Ophiolite Complex Serpentinite-Peridotite, limestone ~ 200 m Upper Triassic: dolomitic limestones ~ 150 m Palaeozoic Ni-Fe Laterites Silicified Crust ~ 50-60 m Hematitic Zone ~ 20-30 m Limonitic Zone ~ 2 - 40 m Saprolitic Serpentinite ~ 10-20 m Tropical-Subtropical Climate Ni, Co, MnO leached and re-deposited at depth Fe, Al2O3 + SiO2 forms silicified crust = protection from erosion Geological Map Caldag:  Geological Map Caldag Cross Section Caldag:  Cross Section Caldag Regional Geology of Turkey 1 : 2 000 000:  Regional Geology of Turkey 1 : 2 000 000 Landsat Coverage Remote Sensing:  Landsat Coverage Remote Sensing Regional Geology of Balkans:  Regional Geology of Balkans Ophiolites Potential Fe-Ni Deposit Serbia:  Potential Fe-Ni Deposit Serbia Large deposit Albania:  Albania Three areas Well explored Production mines, up to 500,000 tpa per mine Slide12:  ? Slide13:  Thank you for your attention And Glück Auf

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