【摘要】 昌宁—孟连带作为古特提斯主洋盆 (多岛洋 )的观点 /模式的提出 ,已在国内外引起强大反响和争论 ,由于形成观点和建立模式所依据的资料很多来自孟连县曼信及相邻地区。因此该区的有关地质构造问题 ,自然也就引起了广泛的关注。根据笔者对这些地区长期的野外观察和研究 ,发现许多资料不支持大洋模式 ,尤其是原来建立模式时所依据的地层系统中尚存在若干重要的遗漏和错误。笔者初步认为 :该区晚古生代沉积不是大洋沉积 ;地层中存在明显的沉积间断 ,地层系统需要重新厘定。本文在详细介绍实际资料的基础上 ,对该区晚古生代地层系统 ,沉积相和古地理环境进行了探讨更多还原

【Abstract】 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.更多还原