File:Thin section scan crossed polarizers Siilinjärvi R625-110.80.jpg
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Summary[edit]
DescriptionThin section scan crossed polarizers Siilinjärvi R625-110.80.jpg |
English: Scanned image of thin section R625 110.80-110.95 in cross polarised transmitted light, Siilinjärvi apatite ore.
The thin section is carbonate rich and consists mainly of granular carbonate aggregate with some mica and apatite porphyroclasts. Carbonates cover 75 % of the thin section and form the groundmass of the thin section. Calcite is the dominating carbonate mineral in the thin section, and dolomite grains are often smaller than the calcite grains. The texture is polygonal and the grains in the carbonate aggregates are on average 0.5 mm in diameter. The largest grains are just over 1 mm wide and smallest are < 0.1 mm. In general, the carbonates are well-preserved and non-altered, but some veins have metamorphic aureoles. There is also a spot where carbonates and micas have been pulverised to fine mass. Common phlogopite forms 13 area-% of the thin section and is present as a couple of broken porphyroclasts and fragments. The biggest grain is 7 mm in diameter, but fragments can be < 0.1 mm in diameter. The average flake is about 1 mm wide and rounded. The fragments are often lath-shaped. The laths and other elongated grains are oriented in the same direction. Apatite is present as large porphyroclasts in the carbonate groundmass. The rounded grains are 1-8 mm in diameter and have inclusion trails of carbonates. Apatite forms 12 % of the thin section area. |
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Source | Own work |
Author | kallerna |
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current | 19:05, 12 November 2019 | 4,000 × 2,350 (2.33 MB) | Kallerna (talk | contribs) | User created page with UploadWizard |
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File usage on Commons
The following 23 pages use this file:
- User talk:Kallerna/2015-2019
- Commons:Quality images/Subject/Microscopic
- Commons:Quality images candidates/Archives November 17 2019
- File:Sample Siilinjärvi R625 (110.80).jpg
- File:Thin section scan crossed polarizers Siilinjärvi 501-M3.jpg
- File:Thin section scan crossed polarizers Siilinjärvi H10.jpg
- File:Thin section scan crossed polarizers Siilinjärvi H16.jpg
- File:Thin section scan crossed polarizers Siilinjärvi H2.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R276-108.40.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R301-61.70.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R616-78.20.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R625-110.80.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R625-122.05.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R625-145.40.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R625-153.25.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R625-47.40.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R636-105.90.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R636-116.75.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R636-120.45.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R636-131.20.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R636-136.45.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R636-42.60.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R636-63.35.jpg
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.
Author | Kalle Rahkola |
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Date and time of data generation | 20:11, 20 September 2016 |
Width | 8,938 px |
Height | 5,250 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 6,400 dpi |
Vertical resolution | 6,400 dpi |
Software used | Adobe Photoshop CS6 (Macintosh) |
File change date and time | 20:48, 12 November 2019 |
Exif version | 2.21 |
Date and time of digitizing | 20:11, 20 September 2016 |
DateTimeOriginal subseconds | 86 |
DateTimeDigitized subseconds | 86 |
Color space | Uncalibrated |
Date metadata was last modified | 22:48, 12 November 2019 |
Unique ID of original document | 2986BE3350792688DBC491EEA82EC682 |