Fig. 4From: Sedimentary characteristics of microbialites influenced by volcanic eruption: a case study from the Lower Cretaceous Shipu Group in Zhejiang Province, East ChinaField photo showing macro-structures of serpulid-microbial reefs in the upper part of assemblage 8 (a) and assemblage 7 (b) of the Shipu section. The person in a is 1.7 m tall for scaleBack to article page