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Tumbling Run by Callan Bentley

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About This Gigapan

Taken by
Callan Bentley Callan Bentley
Explore score
1.44 Gigapixels
Date added
May 26, 2011
Date taken
May 24, 2011

This is a classic outcrop in Appalachian stratigraphy. Overall, it shows the transition from the passive margin sedimentation (limestone) of the Cambrian and early Ordovician Sauk and Tippecanoe epeiric seas into the increasing clastic (sand and mud) influence of active margin sedimentation associated with the onset of the Taconian Orogeny (to the east) in the late Ordovician. This particular gigapan shows only the lowest part of the sequence, the New Market limestone (thick bedded) and the contact with the base of the Lincolnshire limestone (thin bedded) at right (downhill; up section; younger strata).

Further downhill (up section; younger strata); the strata get darker and muddier, and bentonite layers show evidence of nearby volcanic eruptions. I'll gigapan those later...

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Stitcher Notes


GigaPan Stitch version 1.1.1241 (Windows)
Panorama size: 1442 megapixels (57548 x 25060 pixels)
Input images: 510 (30 columns by 17 rows)
Field of view: 87.0 degrees wide by 37.9 degrees high (top=31.2, bottom=-6.7)
Vignette correction on: c1=-0.04 c2=-0.0231
All default settings
Original image properties:
Camera make: Canon
Camera model: Canon PowerShot SX120 IS
Image size: 3648x2736 (10.0 megapixels)
Capture time: 2011-05-24 22:23:13 - 2011-05-24 23:11:52
Aperture: f/4.3
Exposure time: 0.004
ISO: 100
Focal length (35mm equiv.): 361.4 mm
Digital zoom: off
White balance: Fixed
Exposure mode: Manual
Horizontal overlap: 47.6 to 57.2 percent
Vertical overlap: 45.8 to 51.9 percent
Computer stats: 8175.03 MB RAM, 4 CPUs
Total time 1:08:17 (8.0 seconds per picture)
Alignment: 44:52, Projection: 8:35, Blending: 14:50
(Preview finished in 57:13)

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