Fig. 2From: Sedimentology of reefal buildups of the Xiannüdong Formation (Cambrian Series 2), SW ChinaLog of the Early Cambrian Tangjiahe section. Sketches of outcrop of microbialite units are shown on the right side of the lithological column. G.F. Guojiaba Formation; Y.F. Yanwangbian Formation; R 1, R 2, R 3 Reefal buildupsBack to article page