Original file (3,002 × 1,548 pixels, file size: 5.2 MB, MIME type: image/jpeg)
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Summary
DescriptionExfoliation dome (Looking Glass Rock, Blue Ridge, North Carolina, USA) 2.jpg |
English: The Appalachian Mountains of eastern America consist of three physiographic provinces: the Valley & Ridge, the Blue Ridge, and the Piedmont. A couple of American national parks have been established in the most scenic stretches of the Blue Ridge: Great Smoky Mountains and Shenandoah. The Blue Ridge is mostly composed of Precambrian basement rocks (igneous & metamorphics). The mountains of the Blue Ridge are generally rounded and not very tall. This is unlike the tall, mostly sharp-peaked mountains of western America's Cordillera, the Andes of South America, the Alps of Europe, and the Himalayas of Asia. Compared with those geologically young mountain chains, the Blue Ridge is relatively old - the Appalachians have been subjected to long term erosion for about one-third of a billion years.
Seen here is an exfoliation dome called Looking Glass Rock in the Blue Ridge of North Carolina. The mountain itself is composed of granite - supposedly the Devonian-aged Whiteside Granite, but that name may not apply here. The rounded shape is from large-scale spheroidal weathering. The name "Looking Glass" refers to how sunlight reflects from the rock when wet from rain, or from ice in wintertime. Locality: view from Looking Glass Rock overlook along the Blue Ridge Parkway, northern Transylvania County, southwestern North Carolina, USA |
Date | |
Source | https://www.flickr.com/photos/47445767@N05/51365015490/ |
Author | James St. John |
Licensing
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/51365015490. It was reviewed on 10 August 2021 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
10 August 2021
Items portrayed in this file
depicts
some value
23 June 2008
0.002 second
10
150 millimetre
1,600
image/jpeg
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 15:28, 10 August 2021 | 3,002 × 1,548 (5.2 MB) | Ser Amantio di Nicolao | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/51365015490/ with UploadWizard |
File usage
Metadata
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Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D70s |
Exposure time | 1/500 sec (0.002) |
F-number | f/10 |
ISO speed rating | 1,600 |
Date and time of data generation | 19:16, 23 June 2008 |
Lens focal length | 150 mm |
Width | 3,008 px |
Height | 2,000 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop Elements 18.0 (Macintosh) |
File change date and time | 23:13, 7 August 2021 |
Y and C positioning | Co-sited |
Exposure Program | Not defined |
Exif version | 2.21 |
Date and time of digitizing | 19:16, 23 June 2008 |
Meaning of each component |
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Image compression mode | 4 |
Shutter speed | 8.965784 |
APEX aperture | 6.643856 |
Exposure bias | 0 |
Maximum land aperture | 5 APEX (f/5.66) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
DateTime subseconds | 00 |
DateTimeOriginal subseconds | 00 |
DateTimeDigitized subseconds | 00 |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 225 mm |
Scene capture type | Landscape |
Scene control | Low gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Hard |
Subject distance range | Unknown |
Serial number of camera | 1004a0cc |
Lens used | 18.0-200.0 mm f/3.5-5.6 |
Date metadata was last modified | 19:13, 7 August 2021 |
Unique ID of original document | B005CABE11C74083C53D2A0B2B312C83 |
IIM version | 24,576 |