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Rock Thin Sections Use of a digital microscope Dr Peter Copley Newcastle College June 2004

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  • Rock Thin SectionsUse of a digital microscopeDr Peter CopleyNewcastle CollegeJune 2004

  • Philip Harris (Motic) Microscope

    Cost: about 1200(to the Biology dept!)

    Includes software

  • The Microscope

  • Digital cameraBinoculareyepiece(x10)ObjectiveLenses(x4,x10,x40,X100 oe)

  • MainPowerswitchCamerapowerPowerinputusb

  • No polarising facilitiesAdequate for basic textural images.Exam papers only use/expect monochromaticdrawings.

  • AcknowledgementThin sectionsGeology departmentKeele University

  • Sedimentary Rocks

  • Desert sandstone (x40)

  • Keele Sandstone (x40)

  • Sherwood Sandstone (x40)Bunter Sst

  • Oolitic Limestone (x40)

  • Limestone calcite crystals in shell (x100)

  • Arkose (x40)

  • Igneous Rocks

  • Peridotite (x40)OlivinePyroxene

  • Porphyrytic Olivine Basalt Groundmass

  • Ophitic Texture (x40)PyroxeneFeldspar

  • Zoned Olivine crystal (x40)

  • Spherulitic Pitchstone (x40)

  • Metamorphic Rocks

  • Garnet Mica Schist (x100)Mica

  • Chiastolite Slate (x40)

  • Gneiss (x40)Felsic mineralsMafic minerals

  • Sillimanite needles (x400)

  • Kyanite & Biotite (x100)

  • Alternatively

  • What if you cannot afford 1200?

  • A cheaper alternative!About 40But discontinued in 2002 by Intel.But now available.

  • 60 from www.thepcstore.co.uk

  • Dont expect the image quality to be as good!!!

  • Oolitic Limestone (x60)

  • Porphyritic Basalt (x60)

  • Ophitic Texture (x60)PyroxeneFeldspar

  • Chiastolite Slate (x60)

  • Will it do???Thats up to you!

  • THE END