File:Stone Mountain & Three Top Mountain (Tennessee-North Carolina, USA) 2.jpg
![File:Stone Mountain & Three Top Mountain (Tennessee-North Carolina, USA) 2.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/d/d2/Stone_Mountain_%26_Three_Top_Mountain_%28Tennessee-North_Carolina%2C_USA%29_2.jpg/800px-Stone_Mountain_%26_Three_Top_Mountain_%28Tennessee-North_Carolina%2C_USA%29_2.jpg?20201022224652)
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editDescriptionStone Mountain & Three Top Mountain (Tennessee-North Carolina, USA) 2.jpg |
English: (looking ~east)
This is an oblique aerial view of the Appalachians in eastern America. The Appalachian Mountains consist of three physiographic provinces. From west to east, they are: 1) the Valley & Ridge; 2) the Blue Ridge; and 3) the Piedmont. The Appalachians extend from Quebec to Alabama, go underground in the Mississippi River area, and re-emerge in the Arkansas-Oklahoma-Texas area as the Ouachita Mountains. The overall mountain chain formed as a result of three separate tectonic collision events during the Paleozoic. The earliest was the Taconic Orogeny (Late Ordovician to Early Silurian) - a volcanic island arc collided with what is now the New England area. Next was the Acadian Orogeny (Late Silurian to Devonian) - a microcontinent called Avalonia collided with eastern North America. The third and most significant mountain building event was the Allegheny Orogeny (Pennsylvanian) - Africa collided with eastern North America. This was a Pangaea supercontinent formation event. The Appalachians mostly lack the sharp-peaked mountains common to western America's Cordillera, the Andes of South America, the Alps of Europe, or the Himalayas of Asia. Compared with those geologically young mountain chains, the Appalachians are relatively old - they have been subjected to long-term erosion for about one-third of a billion years. The prominent ridge in the lower left foreground is Stone Mountain, along the North Carolina-Tennessee border. The hills and mountains in the upper third of the picture are part of Three Top Mountain in northwestern North Carolina. Stone Mountain and Three Top Mountain are part of the Blue Ridge province, which is mostly composed of Precambrian-aged basement rocks (igneous & metamorphics). Three Top Mountain itself is composed of Precambrian amphibolite. See info. at: en.wikipedia.org/wiki/Appalachian_Mountains |
Date | |
Source | https://www.flickr.com/photos/47445767@N05/48644968771/ |
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@N05/48644968771. It was reviewed on 22 October 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
22 October 2020
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current | 22:46, 22 October 2020 | ![]() | 4,000 × 3,000 (10.06 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/48644968771/ with UploadWizard |
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot D10 |
Exposure time | 1/160 sec (0.00625) |
F-number | f/9 |
ISO speed rating | 80 |
Date and time of data generation | 12:01, 3 November 2012 |
Lens focal length | 8.295 mm |
Width | 4,000 px |
Height | 3,000 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Adobe Photoshop Elements 16.0 (Macintosh) |
File change date and time | 20:02, 29 August 2019 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 12:01, 3 November 2012 |
Meaning of each component |
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Image compression mode | 3 |
APEX shutter speed | 7.3125 |
APEX aperture | 6.34375 |
APEX exposure bias | 0 |
Maximum land aperture | 3.34375 APEX (f/3.19) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 16,460.905349794 |
Focal plane Y resolution | 16,483.516483516 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Landscape |
Lens used | 6.2-18.6 mm |
Date metadata was last modified | 16:02, 29 August 2019 |
Unique ID of original document | 47F43D5E9772F0F3866FDC591985766D |