【摘要】 措勤盆地生物礁的分布有一定规律性,现今发现的8个生物礁剖面均分布于且坎 古昌 罗波 当穹错断裂两侧。结合该断裂带出现的放射虫硅质岩沉积和火山岩堆积,推测该断裂带不仅为控相断裂,而且曾经有深水沉积,由于后期的再次活动而消失于断裂带内部。断裂带两侧的生物礁应为台地边缘礁。更多还原

【Abstract】 The Coqen Basin is located in the hinterland of the Qinghai-Xizang Plateau. Eight organic reef sections have been identified in the basin along the Qiekan-Guchang-Luobo-Dangqiongco fault zone. It is inferred, from the radiolarian siliceous rocks and volcanic rocks, that the fault zone should be a facies-controlling fault zone, where the deep-water deposits including platform-margin slope and basin deposits were once (accumulated). Afterwards these deep-water deposits disappeared within the fault zone due to subsequent reactivation of faulting. The organic reefs along the both sides of the fault zone should be assigned to the platform-margin reefs.更多还原