File:Cave stream (Skyline Caverns, Front Royal, Virginia, USA) 5 (28142917950).jpg
![File:Cave stream (Skyline Caverns, Front Royal, Virginia, USA) 5 (28142917950).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/a/a4/Cave_stream_%28Skyline_Caverns%2C_Front_Royal%2C_Virginia%2C_USA%29_5_%2828142917950%29.jpg/491px-Cave_stream_%28Skyline_Caverns%2C_Front_Royal%2C_Virginia%2C_USA%29_5_%2828142917950%29.jpg?20190831191955)
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[edit]DescriptionCave stream (Skyline Caverns, Front Royal, Virginia, USA) 5 (28142917950).jpg |
Cave stream in Virginia, USA. Skyline Caverns is developed in structurally tilted carbonates (mixed dolostones and limestones) of the Rockdale Run Formation (Beekmantown Group, Lower Ordovician). Cave passages vary significantly in their size, sinuousity, and cross-section shape. Passages that are taller than they are wide are called canyon passages - they form in the vadose zone (above the water table). The canyon passage shown above is floored by an active cave stream with some fluvial gravel. Locality: Skyline Caverns, Front Royal, central Warren County, northern Virginia, USA |
Date | |
Source | Cave stream (Skyline Caverns, Front Royal, Virginia, USA) 5 |
Author | James St. John |
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/28142917950 (archive). It was reviewed on 31 August 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
31 August 2019
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current | 19:19, 31 August 2019 | ![]() | 3,000 × 3,662 (3.84 MB) | LittleT889 (talk | contribs) | Transferred from Flickr via #flickr2commons |
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F-number | f/4.9 |
ISO speed rating | 400 |
Date and time of data generation | 11:16, 12 May 2016 |
Lens focal length | 18.6 mm |
Width | 3,000 px |
Height | 4,000 px |
Bits per component |
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Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Adobe Photoshop Elements 13.0 (Macintosh) |
File change date and time | 01:37, 20 July 2016 |
Exif version | 2.21 |
Date and time of digitizing | 11:16, 12 May 2016 |
Meaning of each component |
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Image compression mode | 3 |
APEX shutter speed | 5.90625 |
APEX aperture | 4.59375 |
APEX exposure bias | −0.33333333333333 |
Maximum land aperture | 4.59375 APEX (f/4.91) |
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Flash | Flash fired, compulsory flash firing, red-eye reduction mode |
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Focal plane resolution unit | inches |
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File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Portrait |
Lens used | 6.2-18.6 mm |
Date metadata was last modified | 19:37, 19 July 2016 |
Unique ID of original document | AD8782D7D47D9CD644998B77D72A1234 |