试论塔里木盆地的风格(二)

STYLES OF THE TARIM BASIN

塔里木盆地显生宙的沉积历史始于早震旦世,深入研究其含油气性时,有十大风格引人瞩目:(1)静海盆地相和举足轻重的加里东运动;(2)从沙漠—海湾相、古亚洲定局到华力西最后一次碰撞事件;(3)两类三个三叠纪盆地;(4)中—新生代两个前陆盆地共拥一个中央隆起;(5)背冲推覆和前陆滑脱是两类基本构造样式;(6)典型的前陆盆地及明显的前渊迁移有序性;(7)普遍存在不整合与削截圈闭;(8)晚期成藏和“大气晚成”;(9)南天山和铁克里克隆起下面都有影子盆地;(10)四个并存和多源多期成藏。

The Tarim Basin began its Phanerozoic history of deposi- tion in Early Sinian.As we study its oil & gas bearing prop- erties deepgoingly,the following ten styles are noticeable: (1) the euxinic basin facies and the decisive Caledonian orogeny;(2) from a desert-bay-sound facies,through the finalization of the paleo-Asia,to the last collision event of Variscan orogeny;(3) two types of three Triassic basins; (4) two foreland basins bordering an identical central uplift; (5) back thrusting nappe and foreland decollement as two basic structural patterns;(6) typical foreland basin and the obvious orderliness of its fore deep migration;(7) the widespread traps of unconformity and truncation;(8) oil & gas accunmulation in late phase;(9) there are phantom basins under Southern Tianshan (Kuche) and Tiekelike up- lift (Southwestern Tarim);(10) four“coexistence”s and multi-source and multi-phase accumulation.