关键词: 前陆盆地理论;应用研究;盆地属性;鉴别方法;山前坳陷;中国西部

Abstract: The generation and development process of the concept of foreland basin were discussed.It is pointed that the current research objects for modern foreland basin theory are confined to converging basins related to the Alpine orogenic belt instead of the diverging extensional geodynamic environment,associated peripheral basins and old foreland basins in the pre-Alpine period and neglecting most of the substances of foreland basins,which is an inborn defect and a hard barrier to stride over in its application.Both the underthrust A and underthrust C are only a visual expression of geodynamic environments,and the transformation between diverging extension and converging compress exists in the whole evolutionary process of foreland basins.The peripheral foreland basins should have three different models.Like other basins,foreland basins change with its development and evolution.There exists no simple or universal structural model for all of the foreland basins.It is an open question to directly and impracticably apply the four units of the "foreland basin system" proposed by Decelles et al,and artificially increase oil-gas resources in foreland basins with the misuse of the concept of foreland basins.Half of the 14 piedmont belts recently overrun as foreland basins in West China did not belong to the foreland basins.

Key words: foreland basin theory, applied research, basins attribution, differentiation, foredeep, West China