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Anorthosite Roadcut (Macro) by Ron Schott

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About This Gigapan

Taken by
Ron Schott Ron Schott
Explore score
0.87 Gigapixels
Date added
Sep 07, 2011
Date taken
Aug 24, 2011

Canon Powershot S5 IS

GigaPan Epic100 (2nd generatio...

environmental, geology, macro, nature, travel

State Route 3 through the northern Adirondacks is know to geologists as "The Anorthosite Highway" because of its spectacular cuts throught the Marcy Massif anorthosite unit. This is the third of a series of three GigaPans I shot at this roadcut to illustate the anorthosite at a range of scales.

Gigapan Comments (4)

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  1. Ron Schott

    Ron Schott (September 09, 2011, 08:23PM )

    I just added two shapshots to the wide view of this roadcut to show the contrasting colors of the weathered and fresh anorthosite: www.gigapan.org/gigapans/86445/

  2. Chris Fastie

    Chris Fastie (September 09, 2011, 02:35PM )

    OK, now I get it. That explains a lot. This geology is tricky stuff.

  3. Ron Schott

    Ron Schott (September 09, 2011, 12:55PM )

    It looks darker, but that's just because it's fresh (unweathered). Plagioclase in the labradorite compositional range has this blue color (with a bit of greenish from pyroxenes) but plag will weather to a whiter color. Thi color change causes something of a conondrum when explaining to students whether this is a mafic or felsic rock.

  4. Chris Fastie

    Chris Fastie (September 09, 2011, 08:06AM )

    This exposure seems to have a lot of dark minerals in it for anorthosite. Is that because there is less feldspar (which is often light colored) or because the feldspar is darker than at other places?

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Stitcher Notes


GigaPan Stitch version 1.2.0113 (Windows)
Panorama size: 874 megapixels (42880 x 20392 pixels)
Input images: 153 (17 columns by 9 rows)
Field of view: 2.5 degrees wide by 1.2 degrees high (top=0.1, bottom=-1.1)
Vignette correction on: c1=0.0421 c2=-0.00667
All default settings
Original image properties:
Camera make: Canon
Camera model: Canon PowerShot S5 IS
Image size: 3264x2448 (8.0 megapixels)
Capture time: 2011-08-24 11:47:24 - 2011-08-24 11:57:17
Aperture: f/8
Exposure time: 0.005
ISO: 80
Focal length (35mm equiv.): 435.8 mm
Digital zoom: off
White balance: Fixed
Exposure mode: Manual
Horizontal overlap: 17.3 to 32.3 percent
Vertical overlap: 7.1 to 31.2 percent
Computer stats: 4010.17 MB RAM, 4 CPUs
Total time 19:37 (7.7 seconds per picture)
Alignment: 8:21, Projection: 1:45, Blending: 9:31
(Preview finished in 11:05)

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