File:Magnetite-rich banded iron-formation (BIF) (Michipicoten Iron-Formation, Neoarchean, 2696-2749 Ma; Route 17 roadcut east of Bridget Lake, south of Wawa, Ontario, Canada) 3 (48268766362).jpg
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DescriptionMagnetite-rich banded iron-formation (BIF) (Michipicoten Iron-Formation, Neoarchean, 2696-2749 Ma; Route 17 roadcut east of Bridget Lake, south of Wawa, Ontario, Canada) 3 (48268766362).jpg |
Magnetite-rich ion-formation in the Precambrian of Ontario, Canada. This is a cross-section exposure of Archean-aged banded iron formation (BIF). I'm not absolutely sure about the formal stratigraphic name of the unit at this site, but it appears to be the Michipicoten Iron-Formation (Neoarchean, 2.696 to 2.749 billion years old). The round object is a magnet sticking to the outcrop. The black material in the rocks is magnetite (Iron oxide, Fe3O4). Locality: Route 17 roadcut, just west of Antoine Lake, southeast of Bridget Lake, south-southwest of the town of Wawa, Michipicoten Greenstone Belt, Ontario, southeastern Canada (47° 53’ 44.36” North latitude, 84° 50’ 47.95” West longitude) |
Date | |
Source | Magnetite-rich banded iron-formation (BIF) (Michipicoten Iron-Formation, Neoarchean, 2696-2749 Ma; Route 17 roadcut east of Bridget Lake, south of Wawa, Ontario, Canada) 3 |
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@N05/48268766362. It was reviewed on 5 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
5 December 2019
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 05:55, 5 December 2019 | 4,000 × 3,000 (10.5 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot D10 |
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/11 |
ISO speed rating | 200 |
Date and time of data generation | 17:50, 12 July 2012 |
Lens focal length | 11.614 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 | 20:23, 12 July 2019 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 17:50, 12 July 2012 |
Meaning of each component |
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Image compression mode | 3 |
APEX shutter speed | 5.90625 |
APEX aperture | 6.90625 |
APEX exposure bias | −0.66666666666667 |
Maximum land aperture | 4 APEX (f/4) |
Metering mode | Pattern |
Flash | Flash fired, compulsory flash firing, red-eye reduction mode |
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 | 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 | 16:23, 12 July 2019 |
Unique ID of original document | 30D417DC47D1D8399AEDB85F87CA53EA |