main migration channel and accumulation area lie in north-east in of this area before later hercynain period,while after it, locate upper Paleogene unconformity of BaChu-Maigait slope and margin fault belts in south-west of Bachu uplift;

• 孔洞缝网络; (3) 海西晚期之前主运移通道和主成藏区分布于该区东北部,海西晚期之后,主运移通道分布于麦盖提斜坡上古生界不整合面、巴楚隆起的西南边界断裂带;