File:Paleoproterozoic stromatolite laminae shungite Franceville Gabon.jpg
Original file (3,263 × 2,445 pixels, file size: 4.85 MB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionPaleoproterozoic stromatolite laminae shungite Franceville Gabon.jpg |
English: This natural vertical section of a flat stromatolite shows a succession of light and dark laminae.
Dark bands are the areas where the microorganisms have proliferated. They are now made of shungite (highly evoluted bitumen). Light bands are the areas where the sediment has been trapped. At the top, on the left, the very refractive crystal is a probable zircon. Modified by CombineZP from five shots.Français : Cette section naturelle verticale d'un stromatolite plan montre l'alternance des lamines sombres et claires.
Les bandes sombres correspondent au biofilm dans lequel les micro-organismes ont proliféré. Elles sont maintenant constituées de shungite (bitume très évolué). Les bandes claires correspondent aux zones où le sédiment à été piégé. En haut, à gauche, le cristal très réfringent est probablement un zircon. Image obtenue par compilation de cinq clichés avec Combine ZP. |
Date | |
Source | Own work |
Author | Benoit Potin |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 10:00, 1 November 2020 | 3,263 × 2,445 (4.85 MB) | Benoit Potin (talk | contribs) | Uploaded own work with UploadWizard |
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Metadata
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Image title |
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Exposure time | 1/195 sec (0.0051282051282051) |
F-number | f/3 |
ISO speed rating | 100 |
Date and time of data generation | 02:42, 1 January 2012 |
Lens focal length | 7.3 mm |
User comments | 00dc |
Width | 3,455 px |
Height | 2,559 px |
Orientation | Normal |
Horizontal resolution | 96 dpi |
Vertical resolution | 96 dpi |
Software used | Adobe Photoshop Elements 2.0 |
File change date and time | 01:51, 25 September 2020 |
Exposure Program | Normal program |
Date and time of digitizing | 02:42, 1 January 2012 |
APEX exposure bias | 0 |
Metering mode | Average |
Light source | Unknown |
Flash | Flash did not fire |
Color space | Uncalibrated |
IIM version | 2 |