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Metavolcanic Rocks > Railroad Cut Linden, VA by Alan Pitts

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About This Gigapan

Taken by
Alan Pitts Alan Pitts
Explore score
1.18 Gigapixels
Date added
Jan 06, 2012
Date taken
Dec 30, 2011

Along the Norfolk Southern Railroad approximately 1.25 miles east of Linden, Virginia there are several exposed railroad cuts. The exposed outcrops are Layered Pyroxene Granulite, Mesoproterozoic to Neoproterozic in age and are thought to be country rock, altered during the Grenville orogeny. The outcrop here, which faces almost due north, is severly weatherd, but there are several locations in which metamorphic foliation and gneissic banding are visible. These rocks are part of the Blue Ridge Basement Complex and some of the oldest pieces of Virginia.

Image made as part of the MAGIC project (Mid-Atlantic Geo-Imagery Collection)

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Stitcher Notes


GigaPan Stitch version 1.1.1565 (Macintosh)
Panorama size: 1177 megapixels (70660 x 16668 pixels)
Input images: 154 (22 columns by 7 rows)
Field of view: 105.7 degrees wide by 24.9 degrees high (top=14.8, bottom=-10.2)
Vignette correction on: c1=-0.102 c2=-0.00385
All default settings
Original image properties:
Camera make: Canon
Camera model: Canon PowerShot SX120 IS
Image size: 3648x2736 (10.0 megapixels)
Capture time: 2011-12-30 15:18:49 - 2011-12-30 15:34:28
Aperture: f/4.3
Exposure time: 0.02
ISO: 100
Focal length (35mm equiv.): 361.4 mm
Digital zoom: off
White balance: Fixed
Exposure mode: Manual
Horizontal overlap: 10.4 to 22.4 percent
Vertical overlap: 10.4 to 18.7 percent
Computer stats: 4096 MB RAM, 4 CPUs
Total time 12:21 (4.8 seconds per picture)
Alignment: 4:01, Projection: 1:13, Blending: 7:07
(Preview finished in 6:29)

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