【摘要】 通过对横穿十万大山前陆盆地的SD94 Ⅳ地震剖面的解释 ,证实十万大山盆地曾经历了至少 2次以上的不同方向的构造运动 :早期为前泥盆纪 ,表现为北西向南东的冲断 ;晚期为中泥盆世至白垩纪 ,构造由南东向北西发展。该地区在加里东期存在的北西向南东方向的构造运动值得进一步研究更多还原

【Abstract】 Having interpreted the seismic line SD94Ⅳ crossing the Shiwandashan Basin in Guangxi, we found that the basin had experienced two structural movements with varied structural vergences. The early movement is characterized by thrust toward the southeast, and the structure in the later one may expand from the southeast to the northwest. The early tectonic movement, occurring in the Caledonian orogeny, need to be clarified by further work; and the later one implicates the Shiwandashan Basin to be an Indosinian foreland basin.更多还原