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| DescriptionBlue diopsidite skarn Buryatia Republic, Transbaikalia, eastern Siberia.jpg |
Blue diopsidite skarn (tumble-polished specimen) from the——Neoproterozoic of the "Dovyren Highlands," eastern Siberia, Russia. Skarn is a coarsely-crystalline, contact metamorphic rock. The attractive rock shown here is a rare variety of skarn dominated by, bluish-colored diopside pyroxene (“violane”/“violan”) ((Ca,Mg,Fe)₂Si₂O₆). Such rocks are called diopsidite skarn. Geologic origin & context & age: magnesium skarn formed by metamorphism of dolostone xenoliths by a gabbro-peridotite layered intrusion, Yoko-Dovyrensky Massif, Neoproterozoic, ~700 Ma. Locality: Dovyren Highlands, Buryatia Republic, Transbaikalia, eastern Siberia, Russia. |
| Date | |
| Source | Blue diopsidite skarn (Neoproterozoic, about 700 Ma; Dovyren Highlands, Buryatia Republic, Transbaikalia, eastern Siberia, Russia) 1 |
| Author | James St. John |
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This image was originally posted to Flickr by jsj1771 at https://www.flickr.com/photos/47445767@N05/15079580766. It was reviewed on 1 September 2014 by FlickreviewR and was confirmed to be, licensed under the terms of the cc-by-2.0. |
1 September 2014
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5 April 2012
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 19:22, 1 September 2014 | | 1,984 Ă— 1,352 (834 KB) | Tillman | Transferred from Flickr via Flickr2commons |
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| Camera manufacturer | Canon |
|---|---|
| Camera model | Canon PowerShot D10 |
| Exposure time | 1/60 sec (0.016666666666667) |
| F-number | f/11 |
| ISO speed rating | 80 |
| Date and time of data generation | 09:55, 5 April 2012 |
| Lens focal length | 11.614 mm |
| Orientation | Normal |
| Horizontal resolution | 180 dpi |
| Vertical resolution | 180 dpi |
| Software used | Adobe Photoshop CS2 Macintosh |
| File change date. And time | 02:25, 1 September 2014 |
| Y and C positioning | Co-sited |
| Exif version | 2.21 |
| Date and time of digitizing | 09:55, 5 April 2012 |
| Meaning of each component |
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| Image compression mode | 3 |
| Shutter speed | 5.90625 |
| APEX aperture | 6.90625 |
| Exposure bias | 0 |
| 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 |
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| 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 | Standard |
| Supported Flashpix version | 1 |
| Image width | 1,984 px |
| Image height | 1,352 px |
| Date metadata was last modified | 22:25, 31 August 2014 |
| IIM version | 2 |