File:Thin section scan crossed polarizers Siilinjärvi 501-M3.jpg
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Summary
[edit]DescriptionThin section scan crossed polarizers Siilinjärvi 501-M3.jpg |
English: Scanned image of thin section from Siilinjärvi apatite ore M3 in cross polarised transmitted light.
The thin section can be divided into two domains: about half of the area consists of carbonate domains and rest of mica domains. The mica domains are sheared and have a nematoblastic texture. The shearing is also visible in the carbonate domains, but not that clearly. The carbonate domains show heterogranular texture. Feldspars are found as rare accessory mineral. Carbonates form 50 area-% of the sample and they are grouped into domains that are as wide as the whole section and consist almost purely of carbonates. Calcite is slightly more common carbonate mineral than dolomite, and some veins consist only of calcite. The grain size varies quite lot, the biggest grains are > 2 mm in diameter and smallest ones well < 0.1 mm. The grains are moderately altered and slightly elongated to the mica shear direction. The grains are rounded and the aggregates have a granular texture. Common phlogopite flakes form 45 area-% of the thin sections. The grains are very elongated and some mica fishes are present. The grains are commonly < 0.1 mm wide and the average grain is 0.3 mm long. The grains are oriented in the same direction as the different domains in the sample. The mica domains are not as monomineralic as the carbonate domains, because apatite, carbonate and opaque grains are also present. Most of the apatite in the sample occurs in small carbonate-apatite veins inside the mica domains, and the mineral forms 5 area-% of the sample. The grains are quite small (less than 0.3 mm in diameter) and rounded. Some individual apatite grains are also present in the phlogopite rich zones. Apatite is not present in the carbonate domains. |
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Source | Own work |
Author | kallerna |
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current | 14:58, 13 November 2019 | 4,000 × 2,405 (3.65 MB) | Kallerna (talk | contribs) | User created page with UploadWizard |
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File usage on Commons
The following 25 pages use this file:
- User talk:Kallerna/2015-2019
- Commons:Quality images/Subject/Microscopic
- Commons:Quality images candidates/Archives November 18 2019
- File:Sample Siilinjärvi 501-M3.jpg
- File:Thin section microscopy Siilinjärvi 501M3 etched.jpg
- File:Thin section microscopy Siilinjärvi 501M3 mica.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
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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.
Author | Kalle Rahkola |
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Date and time of data generation | 22:59, 20 September 2016 |
Width | 8,916 px |
Height | 5,360 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 | 16:48, 13 November 2019 |
Exif version | 2.21 |
Date and time of digitizing | 22:59, 20 September 2016 |
DateTimeOriginal subseconds | 32 |
DateTimeDigitized subseconds | 32 |
Color space | Uncalibrated |
Date metadata was last modified | 18:48, 13 November 2019 |
Unique ID of original document | BBB32B8B75D225B0FE4AE083E0028409 |