河西走廊西段及邻区早白垩世盆地的重新厘定

doi:10.7623/syxb200406004

石油学报 ›› 2004, Vol. 25 ›› Issue (6): 18-22.DOI: 10.7623/syxb200406004

河西走廊西段及邻区早白垩世盆地的重新厘定

何光玉, 杨树锋, 陈汉林, 肖安成, 程晓敢

浙江大学理学院地球科学系, 浙江杭州, 310027

收稿日期:2003-10-10 修回日期:2003-12-23 出版日期:2004-11-25 发布日期:2010-05-21
作者简介:何光玉,男,1968年11月生,1998年获中国地质大学(武汉)博士学位,现为浙江大学地球科学系副教授,主要从事构造地质学、石油地质学和灾害地质学方面的教学与科研工作.E-mail:hegy@zju.edu.cn
基金资助:
国家"十五"科技攻关项目(2001BA605A06A)和中石油技术开发项目(Y2001JF)联合资助.

New ideas about the Early Cretaceous basins in western Gansu Corridor and nearby regions

HE Guang-yu, YANG Shu-feng, CHEN Han-lin, XIAO An-cheng, CHENG Xiao-gan

Department of Geosciences, Zhejiang University, Hangzhou 310027, China

Received:2003-10-10 Revised:2003-12-23 Online:2004-11-25 Published:2010-05-21

摘要/Abstract

摘要： 对河西走廊西段及邻区的地震剖面进行了解释,结合钻井资料对其早白垩世时期的沉积与构造特征进行了系统分析,对盆地的原型进行了新的厘定。在早白垩世时期,该区中部并未发育宽台山黑山隆起与天泉寺合黎山隆起,原酒西盆地与花海、酒东和金塔盆地应同属统一的酒泉盆地。其中,原花海、酒西盆地应同属统一的酒西坳陷,内含青西、赤金、石大花海3个凹陷,后者又可以进一步分为花海次凹、石北次凹和大红圈次凹。原金塔、酒东盆地应同属统一的酒东坳陷,内含金塔、盐池、营尔和马营4个凹陷。2个大坳陷间以嘉峪关隆起作为分隔,而原始盆地的南部边界应位于现今边界以南30～50km处。

关键词: 酒泉盆地, 盆地原型, 早白垩世, 河西走廊, 构造特征

Abstract: The seismic profile sections and well data of the western Gansu corridor and nearby regions were analyzed.The sedimentary and structural characteristics of the early Cretaceous basins in this area were investigated.A new prototype of basins developed in the early Cretaceous was proposed.It is pointed out that the formerly named as Jiuxi,Huahai,Jiudong and Jinta basins actually belong to one large basin named as Jiuquan Basin now,because the central Kuantaishan-Heishan Uplift and Tianquansi-Helishan Uplift were not developed in the early Cretaceous.The former Huahai Basin and Jiuxi Basin actually belong to a large depression named as Jiuxi Depression composed of Qingxi Sag,Chijin Sag and Shida-Huahai Sag.The later sag is composed of Huahai Sub-Sag,Shibei Sub-Sag and Dahongquan Sub-Sag,and the former Jinta Basin and Jiudong Basin are actually made up of another large depression named as Jiudong Depression including Jinta Sag,Yanchi Sag,Yinger Sag and Maying Sag.The two large depressions are separated by the Jiayuguan uplift,Which is a south-north extending uplift between the two depressions.The southern boundary of the large basin in the early Cretaceous is on the northern Qilianshan and has a distance from 30 to 50 kilometers to the boundary of the present basin.

Key words: Jiuquan Basin, basin prototype, early Cretaceous, Gansu corridor, structural characteristics

中图分类号:

TE111.1

何光玉, 杨树锋, 陈汉林, 肖安成, 程晓敢. 河西走廊西段及邻区早白垩世盆地的重新厘定[J]. 石油学报, 2004, 25(6): 18-22.

HE Guang-yu, YANG Shu-feng, CHEN Han-lin, XIAO An-cheng, CHENG Xiao-gan. New ideas about the Early Cretaceous basins in western Gansu Corridor and nearby regions[J]. Editorial office of ACTA PETROLEI SINICA, 2004, 25(6): 18-22.

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河西走廊西段及邻区早白垩世盆地的重新厘定

New ideas about the Early Cretaceous basins in western Gansu Corridor and nearby regions

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