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弧形构造研究进展
  • 期刊名称:地球科学进展,2007(7),22(7):708-715
  • 时间:0
  • 分类:P542[天文地球—构造地质学;天文地球—地质学]
  • 作者机构:[1]中国地震应急搜救中心,北京100049, [2]中国地震局地质研究所,北京100083
  • 相关基金:国家自然科学基金项目“米仓山、南大巴山与川东北前陆变形区中新生代盆山耦合关系研究”(编号:40472110)资助.
  • 相关项目:米仓山、南大巴山与川东北前陆变形区中新生代山盆耦合关系研究
中文摘要:

从几何学、运动学特征及研究方法的角度出发,综述了弧形构造的主要研究进展,探讨了其动力学机制和控制因素,介绍了中国境内典型的弧形山系的构造特征,结果表明:①依据弧形构造内部主要构造在平面上的展布特征及其与前缘的关系,可分为平行型、汇聚型、发散型、削截型和杂乱型等;②基于几何学—运动学特征的分类方案,具有较强的实用性,在研究中值得重视;③古地磁、应力—应变分析、构造模拟和沉积环境研究是其主要研究方法;④弧形构造形成的主控因素包括:盆地原型、前陆基底砥柱、大陆边界、走滑断裂、区域滑脱层、刚性块体楔入和多期构造叠加等;⑤中国境内比较典型的弧形构造有青藏高原东北缘弧形构造、南天山弧、宿迁弧和雪峰山弧等,但对具体弧形构造的运动学及动力学研究较弱。目前,弧形构造三维变形几何学、运动学研究及成因机制还比较薄弱,仍是现今研究的重点和难点。

英文摘要:

The research of arcuate structure about its geometry, kinematics,classification, main research methods and controlling factors has been comprehensively reviewed. The results are as follows : ( 1 ) According to its interior structural trendline distribution and interrelation in plane view, the arcuate structure is classified as parallel, convergence, divergence, truncation and disorder type ; (2) The geometry-kinematics classification is more practical to use and worth while attention; (3) Palaeomagnetism ,strain analysis ,modeling and sedimentology are main methods used in.the research of arcuate structure; (4)The main controlling factor of arcuate structure includes the basin prototype, foreland basement uplift, continental boundary, strike-slip faults, regional decollement, rigid indentor and multiple structural superimposition; (5) The typical arcuate structures in China include the north-eastern part of Tibet plateau, southern Tianshan, Xuqian arc and Xuefengshan and so on, but the kinematics and dynamics research about those arcuate structures are still weak. At present, the 3D strain analysis and mechanism are still weak, which will be the important topics in the future.

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