File:Kimberlite (Arkhangelskaya Pipe, Late Devonian; Arkhangelsk Region, Russia) 8.jpg
Original file (3,187 × 2,139 pixels, file size: 4.65 MB, MIME type: image/jpeg)
Captions
Summary
editDescriptionKimberlite (Arkhangelskaya Pipe, Late Devonian; Arkhangelsk Region, Russia) 8.jpg |
English: Kimberlite from the Devonian of Russia.
This kimberlite sample is from an exploratory drill core in a diamondiferous pipe in northwestern Russia. Sample description by a Russian diamond exploration geologist (I'm not 100% sure who it was): Autolith kimberlite breccia, Arkhangelskaya Pipe, Zolotitskoye Field. Breccia structure. Quantity of autoliths in rock reaches 20-50%. The size of the autoliths varies in wide limits from 0.1-1.5 to 4-5 millimeters and more. Ratio of large and small autoliths is changing on the background of usual predominance of small autoliths having size 0.5-1.0 millimeters over large ones. Cemented kimberlite mass has microporphyric structure. It contains up to 30-35% of microporphyric olivine having sizes 0.2-1.5 millimeters (as a rule replaced by serpentine-saponite aggregate) and 65-70% of matrix formed by coarse-grained serpophyte (serpentine) or saponite-serpophyte aggregate. In some areas of matrix rare flakes of changed phlogopite are noted. Among diamond-satellite minerals chrome spinellids (hundred grams/ton) and chrome-diopside (tens of grams/ton) predominate above garnet. Higher content of deep xenoliths (in comparison with other diatremes of provinces) is typical for autolith kimberlite breccia of Arkhangelskaya pipe. Geologic unit: Arkhangelskaya Pipe, Zolotitskoye Field, Arkhangelskaya Diamond Province, Late Devonian Locality: Lomonosov Diamond Mine, north-northeast of the town of Arkhangelsk, Arkhangelsk Region, east of the White Sea, northwestern Russia (65° 17' 26.41" North latitude, 41° 01' 04.64" East longitude) |
Date | |
Source | https://www.flickr.com/photos/47445767@N05/50564272732/ |
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@N05/50564272732. It was reviewed on 18 November 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
18 November 2020
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 03:00, 18 November 2020 | 3,187 × 2,139 (4.65 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/50564272732/ 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.
Camera manufacturer | Canon |
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Camera model | Canon PowerShot D10 |
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/10 |
ISO speed rating | 80 |
Date and time of data generation | 18:08, 2 November 2020 |
Lens focal length | 9.681 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 18.0 (Macintosh) |
File change date and time | 14:54, 3 November 2020 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 18:08, 2 November 2020 |
Meaning of each component |
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Image compression mode | 3 |
APEX shutter speed | 5.90625 |
APEX aperture | 6.65625 |
APEX exposure bias | −0.66666666666667 |
Maximum land aperture | 3.625 APEX (f/3.51) |
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 | 09:54, 3 November 2020 |
Unique ID of original document | 42BA805AB132BCB34E063B228796901C |