
2016年12月,第22卷,第4期,657-669页
Dec 2016,Vol. 22,No.4, pp.657669 DOI: 10.16108/j.issn10067493.2016021
高校
地质学报
Geological Journal of China Universities
塔里木盆地库车坳陷中生界构造古地理分析余海波"23,漆家福",杨宪章,刘骐晓,曹淑娟,范绳",孙统",杨向阳
1.中国石油大学油气资源与探测国家重点实验室,北京102249; 2.中国石化中原油图分公司期探开发研究院,郑州450000;
3.中果油田博士后科研工作站,郑州450000;
4.中国石油塔里木油公司勘探开发研究院,库尔勒841000
摘要:运用区域地面地质、地震、钻测井等资料的综合分析,对库车坳陷中生界的盆地结构、构造样式、中生界各层序原始地层厚度和沉积相分布、古隆起形态、区域构造演化等方面进行研究,重建了库车坳陷中生代盆地构造古地理,并对盆地原型成因进行分析。库车坳陷残留中生界总体上为北厚南薄、北剥南超的地质结构,北部强烈角度不整合在南天山海西期帮皱带,南部微角度不整合面在寒武-奥陶系之上,南部边缘清者温宿-西秋-牙哈古隆起有基底断裂活动。北部单斜带为冲积扇和辫状河三角洲,克拉苏构造带为深湖,南部沿着古隆起带为暖坡三角洲、浅湖。库车坳陷中生代原型盆地位于南天山海西期造山带和塔里木克拉通边缘过渡带之上,地壳均衡可能是盆地沉降的主要动力。南缘古隆起带在南天山洋扩张期为塔里木克拉通台地与被动大陆边缘的台地边缘,南天山洋闭合期为前陆隆起带,发育基底断裂和断块差异活动,在
中生代有继承性活动,晚新生代新天山挤压隆升使古隆起带发生挤压变形,成为新天山逆冲变形造山模的前锋关键词:塔里术盆地;库车勘陷;构造古地理;原型盆地
中图分类号:P542;TE121
文献标识码:A
文章编号:10067493(2016)040657-13
TheMesozoicTectonicPalaeogeographicAnalysisin
KuqaDepressionofTarimBasin
YU Haibo123, QI Jiafu', YANG Xianzhang', LIU Qiyao*, CAO Shujuan*
FAN Sheng', SUN Tong', YANG Xiangyang
1. State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, Beijing 102249: 2. Research Institute of Exploration and Development, Zhongyuan Oilfield, SINOPEC, Zhengzhou, Henan 450000;
3. Postdoctoral Research Station of Zhongyuan Oilfield , Zhengxhou, Henan 450000;
4 Research Institute of Exploration and Development, Tarim Oil Company of PetroChina, Korla, Xinjiang 841000
Abstract: Using the regional geological, seismic, and well data, this paper investigates the Mesozoic basin structure and tectonic style, Mesozoic original thickness of strata and depositional system, paleo-uplift topography, and regional tectonic evolution in Kuqa depression. Subsequently the paleogeography of the Mesozoic basin is reconstructed and factors of basin prototypes in Kuqa depression are analyzed. The residual Mesozoic strata in Kuqa depression show that the geological structure becomes thinner from the north to the south, and is stripped in the north and overlapped in the south. The northerm part is marked by a large angular unconformity on Hereynian fold belt of south Tianshan, and the southem part shows a gentle angular unconformity on Cambrian or Ordovician. The
收搞日期:20160212;修回日期:20160415
基金项目:国家重大专项(2011ZX05003-004)的企业配套项目
作者简介:余海波,男,1983年生,博土研究生,地质学专业,研究方向为区域构造及盘地分析。长期从事石油地质研究:
E-mail: dikaangyuhaibo05@163.com