File:Eclogite (Chatanika sequence; north of Fox, Alaska, USA).jpg
Original file (2,027 × 1,912 pixels, file size: 3.52 MB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionEclogite (Chatanika sequence; north of Fox, Alaska, USA).jpg |
English: (photo provided by James Cheshire)
Eclogite is a scarce, crystalline-textured, very high grade metamorphic rock dominated by reddish garnet and greenish omphacite pyroxene. It forms by deep burial metamorphism of mafic rocks - usually oceanic lithosphere that has been subducted deep into the mantle. If uplifted back to the surface, eclogite is often subjected to retrograde metamorphism, which alters its mineralogy. The weathered eclogite seen here appears to have a schistose texture. It is part of the Chatanika sequence in east-central Alaska. The precursor rocks may be Paleozoic in age, with metamorphism during the Mesozoic. Locality: borrow pit along the Elliott Highway, north of the town of Fox & south of the Chatanika River, east-central Alaska, USA |
Date | |
Source | https://www.flickr.com/photos/47445767@N05/51601308351/ |
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@N05/51601308351. It was reviewed on 19 October 2021 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
19 October 2021
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 14:46, 19 October 2021 | 2,027 × 1,912 (3.52 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/51601308351/ with UploadWizard |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
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Camera manufacturer | OLYMPUS IMAGING CORP. |
Camera model | E-500 |
Exposure time | 1/80 sec (0.0125) |
F-number | f/5.6 |
ISO speed rating | 100 |
Date and time of data generation | Unknown date |
Lens focal length | 45 mm |
Width | 3,200 px |
Height | 2,400 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 314 dpi |
Vertical resolution | 314 dpi |
Software used | Adobe Photoshop Elements 18.0 (Macintosh) |
File change date and time | 00:19, 18 October 2021 |
White point chromaticity |
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Chromaticities of primarities |
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Color space transformation matrix coefficients |
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Y and C positioning | Co-sited |
Exposure Program | Creative program (biased toward depth of field) |
Exif version | 2.21 |
Date and time of digitizing | Unknown date |
Meaning of each component |
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APEX shutter speed | 6.321928 |
APEX aperture | 4.970854 |
APEX exposure bias | −0.3 |
Maximum land aperture | 3.61328125 APEX (f/3.5) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, auto mode |
Supported Flashpix version | 1 |
Color space | Uncalibrated |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 90 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | High saturation |
Sharpness | Normal |
Serial number of camera | A78571019 |
Lens used | 14.0-45.0 mm f/3.5-5.6 |
Date metadata was last modified | 20:19, 17 October 2021 |
Unique ID of original document | CF98DD98682304098C1E1E90765B5C0A |
IIM version | 24,576 |