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Gravel deposits on Adams Mill Road NW, DC by Callan Bentley

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About This Gigapan

Taken by
Callan Bentley Callan Bentley
Explore score
Print Pricing
$6.00 to $841.00
0.32 Gigapixels
Date added
Feb 10, 2013
Date taken
Aug 22, 2010

Gravel deposits that overlie the eroded roots of the metamorphic Appalachian belt in Washington, DC. These gravels are well-rounded and poorly sorted, and contain clasts sourced to the Antietam Formation in the Blue Ridge. The age of the gravels is not entirely clear. They may be as old as Cretaceous, or perhaps "Tertiary" terrace gravels.

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Stitcher Notes


GigaPan Stitch version 2.0.0501 (Windows)
Panorama size: 318 megapixels (27996 x 11384 pixels)
Input images: 165 (15 columns by 11 rows)
Field of view: 93.2 degrees wide by 37.9 degrees high (top=-22.9, bottom=-60.8)
Vignette correction on: c1=0.0413 c2=-0.028
All default settings
Original image properties:
Camera make: Canon
Camera model: Canon EOS 60D
Image size: 2592x1728 (4.5 megapixels)
Capture time: 2010-08-22 15:59:18 - 2010-08-22 16:11:17
Aperture: f/7.1
Exposure time: 0.004
ISO: 250
Focal length (35mm equiv.): 212.3 mm
White balance: Automatic
Exposure mode: Manual
Horizontal overlap: 38.3 to 64.6 percent
Vertical overlap: 39.2 to 48.0 percent
Computer stats: 3317.82 MB RAM, 4 CPUs
Total time 17:45 (6.5 seconds per picture)
Alignment: 8:33, Projection: 2:08, Blending: 7:04
(Preview finished in 11:41)

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