准噶尔盆地盆山构造耦合与分段性

摘要/Abstract

摘要： 自海西运动以来, 准噶尔盆地边缘构造带经历了海西运动期强耦合为主阶段、中生代至新生代早期弱耦合及调整阶段、新近纪南缘单边盆山强耦合阶段; 边缘构造带活动强度自海西运动期以来呈明显下降态势, 至中生代为低平缓弱活动调整态, 新生代造山期强度又呈回升状, 但未达到海西运动期水平, 呈现强-弱-强的三阶段式演化特点。准噶尔盆地的6 边形边缘带划分为6 个边缘构造带分段构造组合: 准噶尔盆地南缘西段、南缘东段、准东隆起西缘段、乌伦古边缘构造段、加依尔山边缘段和准噶尔盆地西部边缘段。各构造段表现出明显的构造样式差异, 其中, 准噶尔盆地南缘西段为推覆前方无约束的舒展逆冲推覆系统; 准噶尔盆地南缘东段为指向前陆的强约束逆冲推覆构造;准东隆起西缘段为隆升背景上的东西向水平挤压变形带; 准噶尔盆地东北缘段(乌伦古边缘构造段)为多层滑脱面断坡控制的膝折型断阶和断坪控制的基底凹陷等; 准噶尔盆地西北缘为多期次不同规模的逆冲和推覆叠置系统, 准噶尔盆地西部边缘段为隆升背景下侧向挤压的断弯-断展机制的膝折带构造。

关键词: 准噶尔盆地, 盆山构造, 构造分段

Abstract: Researches indicate that the marginal structural belt of Junggar basin undergone the phases of strong coupling of Hercynian, weak coupling and adjustment from Mesozoic to early Cenozoic as well as strong coupling of southern margin of Junggar basin since Neogene. The degree of activity of marginal structural belt of Junggar basin assumes obvious decline since Hercynian, weak adjustment in Mesozoic and reascending in Cenozoic with less level than in Hercynian. Such orogenic events allowed the hexagon marginal belt with distinct structural configurations of Junggar basin to be divided into 6 marginal structural segments such as west segment (free restricted thrust nappe)and east segment (strong restricted thrust nappe)of southern margin of the basin, western margin segment (EW compressiondeformation belt)of Zhundong (east Junggar)uplift, northeast segment or Ulungu segment (kink fault terrace and basement sags), northwestern margin segment or Zhayir segment (thrust-nappe superimposed system)and west Junggar marginal segment (kink belt structure).

Key words: Junggar basin, tectonic coupling, structural segmentation

中图分类号:

TE111.2

马宗晋, 曲国胜, 李涛, 赵瑞斌, 许建东. 准噶尔盆地盆山构造耦合与分段性[J]. 新疆石油地质, 2008, 29(3): 271-277.

MA Zong-jin, QU Guo-sheng, LI Tao, ZHAO Rui-bin, XU Jian-dong. Tectonic Coupling and Segmentation of Marginal Structural Belt in Junggar Basin[J]. Xinjiang Petroleum Geology, 2008, 29(3): 271-277.

参考文献

[1] Hildebrand P R, SearleMP, Van Heijst H J. Geological evolution of the Hindu Kush, NW frontier Pakistan: active marginto continent-continent collision zone[A] . AsifKhanM, TreloarP J, Searle MP, et al. Tectonics of the Nanga Parbat syntaxisand the western Himalaya [C] . Geol. Soc. Lond. Spec.Pub.,2000, 170: 277-294.
[2] Jadoon I AK, Lawrence R D, Lillie R J. Balanced and retrodeformedgeological cross -section from the frontal SulaimanLobe, Pakistan: duplex development in thick strata along thewestern margin of the Indian plate[J] . Thrust Tectonics, 1992.
[3] Jadoon I A K, Frisch W. Hinterland-vergent tectonic wedgebelow the Riwat thrust, Himalayan foreland, Pakistan: implicationsfor hydrocarbon exploration[J] . AAPGBulletin, 1997,81(3): 438-448.
[4] Jaswal T M, Lillie R J, Lawrence R D. Structure and evolutionof the northern Potwar deformed zone, Pakistan[J] . AAPGBulletin, 1997, 81 (2): 308-328.
[5] Jamison W R. Mechanical models of triangle zone evolution[J] . Bulletin of Canadian Petroleum Geology, 1996, 44(2):180-152.
[6] Pavlis T, Das S. The Pamir-Hindu Kush seismic zone as astrain marker for flow in the upper mantle [J] . Tectonics,2000, 19:103-115.
[7] Qu Guosheng, Canerot J. Comparative studies of Cenozoicand Mesozoic tectonics and evolution between west Kunlun-Pamir (China)and Pyrenees (France)[J] . Proc.30th Int'l Geol.Congr., 1997, 6: 133-140.
[8] Jones P B. Triangle zone geometry, terminology and kinematics[J] . Bulletin of Canadian Petroleum Geology, 1996, 44(2):139-152.
[9] 曲国胜, Joseph Canerot, 王宗起. 造山带弧形构造[J] . 地质科学, 1996, 31(4): 313-326.
[10] 何登发, 吕修祥, 林永汉, 等. 前陆盆地分析[M] . 北京:石油工业出版社, 1996.
[11] 贾承造, 何登发, 雷振宇, 等. 前陆冲断带油气勘探[M] .北京: 石油工业出版社, 2000.
[12] 曲国胜, 陈杰, 许建东, 等. 阿图什—八盘水磨塔里木盆地反冲构造系统研究[J] . 地震地质, 2001, 23(1): 1-12.
[13] 曲国胜, 李亦纲, 陈杰, 等. 柯坪塔格推覆构造几何学、运动学和动力学演化[J] . 地学前缘, 2003, 10(特刊):142-152.
[14] 曲国胜, J Canerot, 姜春发, 等. 造山带弧形构造[J] . 地质科学, 1996, 31(4): 295-307.
[15] 曲国胜, 陈杰, 陈新安, 等. 西昆仑-帕米尔造山带及其北缘前陆盆地板内变形构造[J] . 地质论评, 1998, 44(4):419-429.
[16] 曲国胜, 许建东, 王俞, 等. 西昆仑-帕米尔前陆依格子牙薄皮弧形推覆构造分析[J] . 地球学报, 1999(增刊),20(57): 82-91.
[17] QU Guosheng, Li Yigang. Segmentations of foreland beltsand their tectonic mechanism in the southwest Tarim basin[J] . Science in China Ser. D Earth Sciences, 2005, 48,(10): 1 585-1 598.
[18] Windley B F, Zhang C. Basin evolution within and adjacentto the Tian shan Range, NW, China[J] . Journal of the GeologicalSociety, 1991. 148: 369-378.
[19] Allen M B, Windley B F, Zhang C. Paleozoic tectonic andmagmatismof the Chinese Tian shan, central Asia[J] . Tectonophysics,1992, 220: 89-115.
[20] Allen MB, Windley B F, Zhang C. Cenozoic tectonic in theUrumqi-Korla region of the Chinese Tianshan [J] . Geolo-gische Rundschau, 1994, 83: 406-416.
[12] Avouac J P, Tapponner P. Active thrusting and folding alongthe north Tianshan and Late Cenozoic rotation of the Tarimrelative to Dzungaria and Kazakhstan[J] . J. Geophys. Res.,1993, 98(4B): 6 755-6 804.
[21] Burchfiel B C, Brown E T, Deng Qingdong, et al. Crustalshortening on the margins of the Tian shan, Xinjiang, China[J] . International Geology Review, 1999, 41: 665-700.
[22] Carroll A R, Graham S A, Hendrix MS. Late Paleozoic tectonicamalgamation of northweastern China: sedimentaryrecord of the northern Tarim, northwestern Turpan, andsouthern Junggar basins[J] . Geological Society of AmericaBulletin, 1995, 107(5): 571-594.
[23] Davis D, Suppe J, Dahlen F A. Mechanics of fold-and-thrustbelts and accretionary wedges[J] . J. Geophy. Res., 1983, 88(B2): 1 153-1 172.
[24] McCaffrey R. Oblique plate convergence, slip vector, andforearc deformation [J] . J. Geophys. Res., 1992, 97 (B6):8 905-8 915.
[25] Seng$r AMC. Paleotectonics of Asia[A] . An Yin, HarrisonM. The tectonics evolution ofAsia[C] .CambridgeUniv. Press,1996.
[26] Vinnk L P, Saipekova A M. Structure of the lithosphere andasthenosphere of the Tian shen [J] . Annales Geophysicae.1984, 2(6): 621-626.
[27] 马宗晋, 曲国胜, 陈新发. 准噶尔盆地构造格架及分区[J] . 新疆石油地质, 2008, 29(1): 1-6.
[28] 许建东, 马宗晋, 曲国胜, 等. 准噶尔盆地西北缘盆山耦合关系研究[J] . 新疆石油地质, 2008, 29(2): 143-146.