THE STRUCTURE AND DYNAMICS OF THE CONTINENTAL LITHOSPHERE IN NORTH AND NORTHEAST CHINA PETROLIFEROUS REGIONS
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摘要: 中、新生代华北及东北经历了一系列裂陷事件,使大陆表层开裂,形成各种类型的陆内伸展构造.其中最大的是华北平原和松辽盆地两个油区,面积分别为20万和26万平方公里.它们反映了与消减作用相连系的挤压变形和岩浆作用之后,中、新生代时期的地壳伸展作用.两个含油盆地既有共性又各有其特性.松辽盆地的伸展是在钙碱性火山岩活动期,主要形成于白垩纪.而华北平原持续到第三纪,至今壳内地震仍在活动.这些大盆地的活动是影响岩石圈构造和变形机制的灵敏指示剂.因此综合两个含油盆地的地质及地球物理特征,将有助于理解这些大型构造与深部过程及大陆岩石圈动力学之间的联系.Abstract: The continental lithosphere of north and northeast China exhibits many Meso-Cenozoic graben systems and basins. Among them the Songliao Basin and North China Plain are the largest. These are subtle indicators of the structure and dynamics of the lithosphere. The regional geology coupled with geophysics indicates that the location and extent of these basins coincide with areas in which the lithosphere is stretched, thinnered, highly fractured and in which the geothermal gradient and heat flow are increased. However the attenuation of the lithosphere was not solely due to shallow crust normal faulting. The formation of these large basin structures are connected with deep seated processes in the mantle. It is suggested that the fundamental controlling factor was the upward advection of the asthenosphere, which may be related to the large subcontinental convection induced by the subduction of Kula-Pacific Plates under the Japan islands since late Mesozoic.
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[1] 朱夏,中新生代油气盆地,《伪造地质学进展》,科学出版社,1982年. [2] 李德生,渤海心含油气盆地的地质特征,石油学报,1卷1期,1981年. [3] 马杏垣等,中国东部中、折生代裂陷牛用和伸展均造,地质学报,57卷1期,1983年. [4] 马杏垣,重力构造概述,《构造地质学进展》,科学出版社,1982年. [5] 宋仲和等,北京-萨哈体剖面的地幔纵向速度结构,地球物理学报,24卷3期,1981年. [6] 滕吉文等,华北平原邢台地震活动区均上地幔结构和地幔低速层,地球物理学报,25卷1期, 1982年. [7] 解政文等,渤海及其邻近地区热流值的初多分析,地震地质,2卷3期,1981年. [8] 杨继良,大庆油田的油藏特征和松辽盆地油气聚集规律,石油与天然气地质,4卷2期,1983年. [9] 张嘉延,唐山强余震前震源深度的变化,地震,5期,1981年. [10] 张立敏、唐晓明,西太平洋板块俯冲运劝与中国东北深震带,地球物理学报,26卷4期,1983年. [11] 张汝惠等,唐山及其邻区热流值的分布,地震地质,4卷4期,1982年. [12] 赵珠,华北地区上地幔速度结构,地球物理学报,26卷4期,1983年. [13] 郑炳华等,燕山地区北西向和北面西向断裂构造基本特征初步探讨,地震地质,3卷2期,1981年. [14] Frcidevaux, C.end Nataf, H.C.,1981,Continental drift, What driving mcchanism?Geol.Rundchau, 70. [15] Hilde, D.,1977, The evolution ef western Pacific plate and its margin,Tcctonophysics, 38. [16] Liu Guodong and Liu Changquan,1983,Structures of crust and upper mantle and their relation to Cenozoic tectonism in northern part of North China, Scientia Sinica(Series B),XXVI. [17] Ma Xingyuan and Wu Zhangwen, 1981, Early tectonic evolution of China, Precambr.Res., 14. [18] Wa Xingyuan, Deng Qidong and Wang Yipeng,1982,Cenozoic gra-ben systems in north China, Z, Geomoph.N, F, Suppl.-Bd.42. [19] Stewart, John H.,1980,Regional tilt patterns of late Cenozoic basin-range fault blocks, wrste}n United States, Geol, Soc.Am, Bull.,Part1, 91. [20] Tang Zhi, 1981, Tectonic features of oil and gas basins in eastern part of China, A,A,P,G.Bull.,66. [21] Wang Jiyang et al.,1981, Geothermal studies in China.Journal Volcanology and Geothermal Res.,9.
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