File:Stromatolitic limestone (Chencha Formation, upper Neoproterozoic, 580 Ma; Patom Upland, Siberia, Russia) 2 (17370036792).jpg
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Summary
| Description |
Stromatolitic limestone from the Precambrian of Russia. (Cranbrook Institute of Science collection, Bloomfield Hills, Michigan, USA) Stromatolites are large, layered structures built up by mats of cyanobacteria. Stromatolites vary in appearance, ranging from slightly wrinkled horizontal laminations in sedimentary rocks to low mounds to prominent mounds to columnar structures and other forms. Stromatolites are most common in the Proterozoic fossil record. They are scarce today, but famous modern examples occur at Shark Bay, Western Australia. Stratigraphy: Chencha Formation, upper Zhuya Group, Vendian (Ediacaran), upper Neoproterozoic, ~580 Ma Locality: apparently derived from the Patom Upland, Siberia, Russia |
| Date | |
| Source | Stromatolitic limestone (Chencha Formation, upper Neoproterozoic, 580 Ma; Patom Upland, Siberia, Russia) 2 |
| Author | James St. John |
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This image was originally posted to Flickr by jsj1771 at https://www.flickr.com/photos/47445767@N05/17370036792. It was reviewed on 6 May 2015 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 19:14, 6 May 2015 | | 3,329 × 2,803 (2.65 MB) | Natuur12 | Transferred from Flickr via Flickr2Commons |
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