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Antiform in Mather Gorge Formation by Callan Bentley

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About This Gigapan

Taken by
Callan Bentley Callan Bentley
Explore score
Print Pricing
$8.23 to $577.00
0.98 Gigapixels
Date added
May 10, 2011
Date taken
May 08, 2011

Exposed on the northern bank of the Chesapeake and Ohio Canal near the downstream end of 'Widewater' (upstream of the Old Anglers Inn access point), this antiform is the result of ancient mountain-building processes. A fold that goes up in the middle is called an 'antiform,' and if there is stratigraphic coherence to it (i.e., the youngest is on top), then we call it an 'anticline.' These rocks, the Mather Gorge Formation, were originally deposited as layers of sand and mud in the deep sea, but were then squished and baked and contorted and recrystallized and partially melted around 460 million years ago, during an ancient episode of mountain-building called the Taconian Orogeny.

As the dark stripe down the middle shows, this GigaPan was shot on a partly cloudy day.

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Stitcher Notes


GigaPan Stitch version 1.1.1241 (Windows)
Panorama size: 982 megapixels (37152 x 26452 pixels)
Input images: 225 (15 columns by 15 rows)
Field of view: 55.9 degrees wide by 39.8 degrees high (top=25.9, bottom=-13.9)
Vignette correction on: c1=-0.0328 c2=-0.0264
All default settings
Original image properties:
Camera make: Canon
Camera model: Canon PowerShot SX120 IS
Image size: 3648x2736 (10.0 megapixels)
Capture time: 2011-05-09 02:12:59 - 2011-05-09 02:40:45
Aperture: f/4.3
Exposure time: 0.0125
ISO: 100
Focal length (35mm equiv.): 361.4 mm
Digital zoom: off
White balance: Fixed
Exposure mode: Manual
Horizontal overlap: 35.1 to 54.0 percent
Vertical overlap: 30.9 to 50.0 percent
Computer stats: 8175.03 MB RAM, 4 CPUs
Total time 24:53 (6.6 seconds per picture)
Alignment: 12:56, Projection: 3:34, Blending: 8:23
(Preview finished in 18:20)

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