摘要
The Neogene Xiaolongtan Formation in Maguan, Yunnan Province is interpreted to be the lacustrine deposits. In the middle-lower part of the Formation, the seismites are recently identified by the authors. These seismites display the features of excellent outcrops, various rock types, continuous sequences and abundant fossils, and thus may be selected as an ideal locus for the examination of the seismite sequences in fault basins.