File:Paleoproterozoic stromatolite laminae shungite Franceville Gabon.jpg
Original file (3,263 × 2,445 pixels, file size: 4.85 MB, MIME type: image/jpeg)
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Summary
| Description |
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 | |
|---|---|---|---|---|---|
| current | 10:00, 1 November 2020 | | 3,263 × 2,445 (4.85 MB) | Benoit Potin | Uploaded own work with UploadWizard |
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