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Geological Thin Sections > Thin Section of Norite from the Markgraf '52 Memorial by Paul Karabinos

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About This Gigapan

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Taken by
Paul Karabinos Paul Karabinos
Explore score
17
Size
2.72 Gigapixels
Views
722
Date added
Sep 03, 2011
Date taken
Sep 02, 2011
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Description

Thin Section Photograph, with crossed polars, of Norite taken with the automated imaging system at Williams College. Field of view is approximately 20 by 30 mm.
Leica microscope, Nikon camera, and custom designed and built stage adaptor with stepper motors.

Mineralogy consists of two pyroxenes (ortho-pyroxene and clino-pyroxene) and plagioclase feldspar (labradorite). Orthopyroxene on the compositional border between bronzite and hypersthene. Exsolution lamellae of Cpx in the Opx, and simplectic textures between the two The preponderance of Opx over Cpx in the section makes this gabbro a norite.

From Bosspruit, South Africa, in the Bushveld igneous complex.


Gigapan Comments (2)

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  1. Paul Karabinos

    Paul Karabinos (September 06, 2011, 04:54AM )

    Thin section photograph taken with a custom designed and built imaging system at Williams College. Stage adaptor uses a mechanical stage fitted with stepper motors, which are run with CNC software.

  2. Jouko Vanne

    Jouko Vanne (September 04, 2011, 09:23AM )

    Fine thin section photo. What kind of equipment do you use?

The GigaPan EPIC Series, Purchase an GigaPan EPIC model and receive GigaPan Stitch complimentary

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Stitcher Notes

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GigaPan Stitch version 1.0.0804 (Macintosh)
Panorama size: 2722 megapixels (60908 x 44696 pixels)
Input images: 400 (20 columns by 20 rows)
Field of view: 23.4 degrees wide by 17.2 degrees high (top=8.3, bottom=-8.9)
Settings:
All default settings
Original image properties:
Camera make: NIKON CORPORATION
Camera model: NIKON D7000
Image size: 4928x3264 (16.1 megapixels)
Capture time: 2011-09-02 14:39:45 - 2011-09-02 15:14:18
Aperture: f/0
Exposure time: 0.4
ISO: 100
Focal length (35mm equiv.): unknown
Digital zoom: off
White balance: Fixed
Exposure mode: Manual
Horizontal overlap: 37.4 to 52.0 percent
Vertical overlap: 29.9 to 50.3 percent
Computer stats: 4096 MB RAM, 2 CPUs
Total time 1:45:09 (16 seconds per picture)
Alignment: 25:31, Projection: 11:23, Blending: 1:08:14
(Preview finished in 57:18)

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