coal_petrology.ppt
TRANSCRIPT
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Introduction to coal petrographybySufriadinMining Engineering- UNHAS2005
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How to IndentifyColourReliefShapeReflectivity
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Three Maceral Group :Vitrinite- Detrovitrinite- Telovitrinie- GelovitriniteLiptinite- Resinite- Cutinite- Sporinite- Suberinite- AlgineInertinite- Micrinite- Fusinite- Macrinite- Sclerotinite
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Sample PreparationGround to -1 mm (ASTM, 1991)Mixed with epoxy resinMoulded (1 inch in diameter)PolishedReady for analysed
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Coal sample prep. equipments
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Microscope for maceral analysis of Zeiss Axioplan
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Collinite (cell interiors) and telinite (cell walls), sample form KY, US.Vitrinite MaceralMaceral Phlobapinite from Tondongkurah (Pangkep, South Sulawesi), 200x, reflected light
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Telinite with resinite as filled material (darker areas)Vitrinite MaceralCollinite/resinite(r) in textinite (t)
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Corpocollinite, sample from Powder River Basin (WY, US).Vitrinite MaceralGelinite (matrix vitrinite), sample form Powder River Basin, WY.US.
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Liptinite Maceral :Resinite (darker areas), set in vitrinite, sample from Tondongkurah, Pangkep, South SulawesiSame as above, but with blue light excitation
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Liptinite Maceral Fluorinite & Resinite with liptodetrinite & sporinite in eu-ulminite, also abundant mineral matter (sampel from East Kalimanatan, Indonesia)Same as above, but with blue light excitation
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Liptinite Maceral Botryococcus telalginite, blue light excitation (sample location : Quensland Australia)Botryococcus telalginite (sample from Kentucky US).
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Liptinite Maceral Cutinite, white light, sample from Gattareng-Soppeng, South SulawesiSame as above, but in blue light,
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Liptinite MaceralSuberinite (white light)Suberinite (blue light)
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Liptinite MaceralExsudatinite, set in vitrinite, sample lignite from Arutmin- Tanjung Formation, Kalimantan, (blue light excitation)Same as above, but in white light.
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Liptinite maceral (resinite), dark, sets ini vitrinite.Same as above, but in fluorescene mode.
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Inertinite MaceralSclerotinie, set in vitrinite, 500x, Refl. Light, sample from Tondongkurah.Macrinite (rounded) associated with vitrinite, and pyrite (light yellow), Refl. light
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Mineral Matter in CoalPyrite,associated with clay in coal, sample from Tondongkurah, Pangkep.Pyrite framboidal associated with vitrinite
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Carbonate (calcite? ca),( reddis yellow) associated with clay (dark), reflected light, 200 xPyrite (white yellow ), filled cleat as epigenetic mineral, reflected light, 200x
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Clay band (c) with siderite (s) and titanium oxide (t), Kaolinite worm (brownis dark), sample form Colorado US.
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Carbonate mineral (light yellow)
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Coal Petrology ApplicationGeological study- Depositional environment- Basin analysis- Seam correlationCoal ExplorationTechnological application- Coal preparation- Coal combustion- Coal liquifaction- Coal gasification