Distribution and depositional model of microbial carbonates in the Ordovician middle assemblage, Ordos Basin, NW China |
WEI Liubin,ZHAO Junxing,SU Zhongtang,WEI Xinshan,REN Junfeng,HUANG Zhengliang,WU Chunying |
Fig. 9. Development models of Ordovician carbonate- evaporite microbialites in the mid-east of Ordos Basin. (a) Early transgression of Ma55; (b) Depositional period of Ma56; (c) Depositional period of Ma57; (d) Depositional period of Ma58. |