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Metamorphic Rocks > Folds in the Catoctin Formation by Chris Johnson

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About This Gigapan

Taken by
Chris Johnson Chris Johnson
Explore score
0.18 Gigapixels
Date added
Oct 26, 2012
Date taken
Oct 21, 2012

This is an image of chevron folds in the Catoctin Formation. The The Catoctin Formation was a flood basalt which formed during the rifting that formed the Iapatus Ocean (The Proto-Atlantic). It formed approximately 560 mya during the Ediacrin Period, part of the Pre-Cambrian. Since its deposition it has undergone hydrothemal alteration to a greenstone. At other localities one can find vesicles which have been infilled by epidote. This image is taken roughly 30 feet down section from the overlying Weverton formation. The image was taken just west of Thoroughfare Gap along the train tracks. This is along the eastern limb of the Blue Ridge Anticlinorium. The image was taken facing north.
The approximate trend and plunge of the axis is 55->N35E

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Stitcher Notes


GigaPan Stitch version 2.0.0501 (Windows)
Panorama size: 184 megapixels (21804 x 8460 pixels)
Input images: 66 (11 columns by 6 rows)
Field of view: 34.3 degrees wide by 13.3 degrees high (top=-5.4, bottom=-18.7)
Vignette correction on: c1=-0.0643 c2=-0.0201
All default settings
Original image properties:
Camera make: Canon
Camera model: Canon PowerShot SX120 IS
Image size: 3648x2736 (10.0 megapixels)
Capture time: 2012-10-21 10:04:15 - 2012-10-21 10:11:01
Aperture: f/4.3
Exposure time: 0.0166667
ISO: 80
Focal length (35mm equiv.): 361.4 mm
Digital zoom: off
White balance: Fixed
Exposure mode: Manual
Horizontal overlap: 49.6 to 54.9 percent
Vertical overlap: 56.7 to 59.6 percent
Computer stats: 8183.89 MB RAM, 4 CPUs
Total time 7:25 (6.7 seconds per picture)
Alignment: 2:37, Projection: 1:29, Blending: 3:19
(Preview finished in 4:45)

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