Remarks on the Upper Paleozoic strata in the Menglian—Manxin area of the southern part of the Changing—Menglian Belt, western Yunnan
The opinion/model that the Changning—Menglian Belt is the remnant of the main oceanic basin of Paleotethys has given to much controversy. Since many of the data that were used to support this model are from the Menglian—Manxin area, the geological problems of this area have drawn much attention. According to the author's long-period field observation and study, it is found that many data do not support the large ocean model, and that there are several confusions and mistakes in the stratigraphic systems, on which the model was constructed. The preliminary conclusions of the author are: Late Paleozoic sediments of this area are not oceanic sediments; there are obvious sedimentary hiatuses in the succession, the stratigraphic system needs to be revised.