摘要
笔者运用板块构造活动史观、沉积古地理、盆地分析等新的技术思路， 以构造演化为主线， 通过大轮廓的区域地质分析， 突出三江－钦防特提斯多岛洋构造环境下， 形成众多前陆盆地沉降带的成因机制和演化特点。经过晚古生代古特提斯洋的扩张—消减等板块活动的巨大影响， 进入印支期构造发展阶段， 沿三江－钦防特提斯造山带一线分布的兰坪－思茅、楚雄、南盘江、十万大山等盆地在被动大陆边缘沉积上， 先后进入弧后—前陆盆地发展阶段， 形成巨厚的前陆沉降带含油气建造。
In this paper, the genetic mechanism of many foreland basins and their evolution characteristics in the structural environment of the Sanjiang-Qingfang Tethys multi-island ocean are emphasized according to the regional geological analysis of the tectonic evolution by using the plate tectonic theory, new thoughts of sedimentary palaeogeography and basin analysis, etc. This area was influenced seriously by the opening-subduction of plate activity of Tethys ocean in Late Palaeozoic. During the Indosinian tectonic development stage, the Lanping Simao, Chuxiong, Nanpanjiang, Shiwandasan basins along Sanjiang-Qinfang Tethys orogen experienced earlier or later the behind-arc--foreland basin development stage on the sediment of passive continental margin and formed a very thick oil-gas formation of foreland subsidence zone.
出处
《云南地质》
1999年第3期239-247,共9页
Yunnan Geology
