Fig. 7
From: Macro- and microfeatures of Early Cambrian dolomitic microbialites from Tarim Basin, China
Microscopic features of the vermicular and reticular clotted fabrics of the Xiaoerblak Formation of the Sugaitblak section, Tarim Basin, Xinjiang, China. a Vermicular clotted fabric, showing vermicular clotted fabric (wo) composed of dark powder crystalline dolomites, at the top of the Interval III, isolated, cemented by light fine dolomites. b Enlargement of the yellow rectangle in a. The worms are in similar sizes (0.3 mm in length on average) and distributed in isolation without obvious directions. c Spotted (sd) and vermicular clotted fabrics (wo) comprised of dolomicrites, in the microbial mounds in the Interval IV, cemented by fine dolomites. d Reticular clotted fabric of the top of the Interval V. e Enlargement of the yellow square in d, showing the fillings (br) in the meshes composed of fine crystalline dolomites. The meshes are in oval or irregular shape and vary in size. f The reticular clotted fabric (ret) of the middle part of the Interval I, consisting of fine crystalline dolomites. All are photomicrographs of thin sections under plane-polarized light microscope