[1]张永,崔永平,刘长磊.塔里木盆地色力布亚断裂带几何学及运动学特征[J].新疆石油地质,2018,(03):264.[doi:10.7657/XJPG20180303]
 ZHANG Yong,CUI Yongping,LIU Changlei.Geometrical and Kinematics Characteristics of Selibuya Fault Belt, Tarim Basin[J].Xinjiang Petroleum Geology,2018,(03):264.[doi:10.7657/XJPG20180303]
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塔里木盆地色力布亚断裂带几何学及运动学特征()
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《新疆石油地质》[ISSN:1001-3873/CN:65-1107/TE]

卷:
期数:
2018年03期
页码:
264
栏目:
出版日期:
2018-06-01

文章信息/Info

Title:
Geometrical and Kinematics Characteristics of Selibuya Fault Belt, Tarim Basin
文章编号:
1001-3873(2018)03-0264-13
作者:
张永1崔永平2刘长磊1
(1.中国地质大学 能源学院,北京 100083;2.中国石油 勘探与生产分公司,北京 100007)
Author(s):
ZHANG Yong1 CUI Yongping2 LIU Changlei1
(1.School of Energy Resources, China University of Geosciences, Beijing 100083, China; 2.Exploration and Production Company, PetroChina, Beijing 100007, China)
关键词:
塔里木盆地巴楚隆起色力布亚断裂带几何学特征运动学特征生长地层不整合
Keywords:
Tarim basin Bachu uplift Selibuya fault belt geometric characteristic kinematics characteristic growth stratum unconformity
分类号:
TE111
DOI:
10.7657/XJPG20180303
文献标志码:
A
摘要:
色力布亚断裂带为巴楚隆起南缘边界断裂带之一,受到盆内多期构造活动的影响,形成了多期构造活动叠加影响下的复杂断裂构造,研究色力布亚断裂带的几何学特征及运动学特征对于探讨巴楚隆起性质、形成时间及研究克拉通内构造变形成因具有重要意义。运用断层相关褶皱理论及其他地震解释方法,对近垂直于色力布亚断裂带走向的8条二维地震剖面进行了精细解释及分析,重新刻画了色力布亚断裂带的几何形态,并利用三维建模技术建立了断裂带在三维空间的形态,以断裂本身展布特征及组合特征为依据重新对色力布亚断裂带进行了分段;结合生长地层及不整合面的发育特征,探讨了构造活动的期次及相对强弱。研究认为,色力布亚断裂带以发育色力布亚深部断层为特征,深部断层的活动是导致断裂带北侧地层抬升的主要原因,前寒武系结构证明色力布亚深部断层早期活动具拉张性质;根据断层组合及各自展布形态,色力布亚断裂带划分为北段、中段和南段,各段均表现出分层变形样式,新生界断裂以古近系底膏岩层为滑脱层,古生界断裂以中寒武统盐岩层为滑脱层;生长地层的形态反映了新生界断裂在第四纪开始活动并持续至现今,不整合面的发育指示了基底断裂在中晚二叠世强烈活动,活动强度在断裂带表现为北强南弱,古生界断裂活动期则在中新世至上新世末期,其活动强度表现为北弱南强,基底断裂的影响导致地层整体抬升,古生界和新生界断裂则导致地层发生强烈褶皱变形。
Abstract:
The Selibuya fault belt is one of the boundary faults on the southern margin of Bachu uplift, in which complex fault structures formed under the influence of muti-period tectonic activities in the basin. Studying the geometrical and kinematic characteristics of the Seriyabu fault belt is of great significance in exploring the nature and forming time of Bachu uplift and exploring the causes of structural deformation in the craton. Using fault-related fold theories and other seismic interpretation methods, the paper detailedly interprets and analyzes 8 2D seismic profiles nearly perpendicular to the strike of the Selibuya fault belt, re-depicts the geometry of the fault belt, establishes the 3D shape of the fault belt with 3D modeling techniques, and re-segment the fault belt according to fault assemblages and their distribution patterns. Combining the development characteristics of growth strata and unconformities, the paper also discusses the periods and relative intensities of the structural activities. The study suggests that the Selibuya fault belt is characterized by deep faulting whose activity is the main reason leading to the uplifting of the strata at the northern side of the fault belt. The Precambrian structure proves that the activities of the deep Selibuya faults were tensional at the early stage; according to fault assemblages and their distribution patterns, the Selibuya fault belt can be divided into the northern, middle and southern segments, all of which show stratified deformation patterns. Paleogene gypsum and the Middle Cambrian salt bed are detachment layers of Cenozoic and Paleozoic faults, respectively. The morphology of the growth strata indicate that the Cenozoic faults started their activities during the Quaternary and continued to the present. The development of the unconformity indicates that the basement faulting was active during the Middle-Late Permian with the activity intensity showing stronger in the north and weaker in the south in the fault belt. The Paleozoic active fault period occurred in the Miocene-Late Pliocene and its activity intensity showed weaker in the north and stronger in the south. The basement fault led to the overall rise of the strata, while the the faults of Paleozoic and Cenozoic resulted in the strong fold deformation of the strata

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更新日期/Last Update: 2018-05-31