Fig. 8From: Manganese carbonate stromatolites of the Ediacaran Doushantuo Formation in Chengkou, northern Yangtze Craton, ChinaMacro- and microscopic characteristics of the stratiform stromatolites. a Vertical view of stratiform stromatolites on the core surface, in which the light and dark laminae are slightly undulatory with thicknesses of 0.5–3 mm; sample ZK04-b1; b Streaky laminar texture of stratiform stromatolites, vertical profile; sample ZK03-b12; c Vertical section of stratiform stromatolites showing pillared laminae consist of micro-branched stromatolites and dendrolites with widths of 50–80 μm and heights of 150–800 μm; sample ZK03-b15Back to article page