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Fig. 12 | Journal of Palaeogeography

Fig. 12

From: Manganese carbonate stromatolites of the Ediacaran Doushantuo Formation in Chengkou, northern Yangtze Craton, China

Fig. 12

Microbialite microstructures in the Chengkou manganese stromatolites. a, b Clotted microbialite microstructures in the laminae of stratiform-columnar stromatolites from sample ZK05-b12; c Spherical microbialite microstructures located inside and between the columns of micro-columnar stromatolites from sample ZK01-b11; d Spherical microbialite microstructures with bright cores, which could possibly be algae fossils; sample ZK01-b11; e Tubular microbialite microstructures in the laminae of stratiform-columnar stromatolites from sample ZK01-b11; f Oncolites and suspected filament microbialite microstructures in the laminae of stratiform-columnar stromatolites from sample ZK01-b11; g Fibrous microbialite microstructures in the laminae of stratiform stromatolites from sample ZK03-b12; h Bonded microbialite microstructures in which oncolites were involved in the formation of laminae; sample ZK03-b12

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