rock thin sections use of a digital microscope dr peter copley newcastle college june 2004
TRANSCRIPT
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Rock Thin Sections
Use of a digital microscope
Dr Peter Copley
Newcastle College
June 2004
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Philip Harris (Motic) Microscope
Cost: about £1200(to the Biology dept!)
Includes software
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The Microscope
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Digital cameraBinoculareyepiece(x10)
ObjectiveLenses(x4,x10,x40,X100 oe)
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MainPowerswitch Camera
power
Powerinput
usb
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No polarising facilities
Adequate for basic textural images.
Exam papers only use/expect monochromatic
drawings.
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Acknowledgement
Thin sections
Geology department
Keele University
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Sedimentary Rocks
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Desert sandstone (x40)
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Keele Sandstone (x40)
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Sherwood Sandstone (x40)‘Bunter Sst’
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Oolitic Limestone (x40)
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Limestone – calcite crystals in shell (x100)
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Arkose (x40)
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Igneous Rocks
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Peridotite (x40)
Olivine
Pyroxene
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Porphyrytic Olivine Basalt
Groundmass
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Ophitic Texture (x40) Pyroxene
Feldspar
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Zoned Olivine crystal (x40)
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Spherulitic Pitchstone (x40)
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Metamorphic Rocks
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Garnet Mica Schist (x100)
Mica
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Chiastolite Slate (x40)
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Gneiss (x40) Felsic minerals
Mafic minerals
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Sillimanite needles (x400)
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Kyanite & Biotite (x100)
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Alternatively……
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What if you cannot afford £1200?
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A cheaper alternative!About £40But discontinued in 2002 by Intel.But now available…….
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£60 from www.thepcstore.co.uk
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Don’t expect the image quality to be as good!!!
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Oolitic Limestone (x60)
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Porphyritic Basalt (x60)
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Ophitic Texture (x60)
PyroxeneFeldspar
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Chiastolite Slate (x60)
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Will it do???
That’s up to you!
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THE END