山旺盆地山旺组重力滑动构造的发现及其意义  

Discovery of the Gravity Gliding Tectonic of Shanwang Formation,Shanwang Basin

作　　者：王亚青[1] 林承焰[1] 

机构地区：[1]中国石油大学(华东)地球资源与信息学院,山东东营257061

出　　处：《西北地质》2008年第2期110-114,共5页Northwestern Geology

基　　金：国家重点基础研究规划(G1999075507)项目资助

摘　　要：在山旺盆地山旺组大型野外露头剖面上,发现了一种新的重力滑动构造。这种重力滑动构造可以划分为原地系统、滑动层、滑动系统三部分。在滑动系统中又可以依部位的不同次划分为平行滑动段、对称挤压段、柔性蠕动段和褶皱推覆段等四段。在滑动系统的微观特征上,表现出典型的柔流褶皱现象。山旺组重力滑动构造和沉积滑塌构造主要区别在于变形发生时间。山旺组重力滑动作用的形成可能与基底差异抬升有关。陆相盆地内部中央隆起带的形成与陡坡带差异升降而造成的重力滑动构造有关。因此,重力滑动构造的发现对理解陆相盆地中央隆起带的形成和演化具有重要意义。On the large-scale stratigraphic succession of Shanwang Formation, Shanwang Basin, a new type of gravity gliding tectonic is identified. It consists of three parts： the underlying system ; the gliding floor and the gliding system. Interior of the gliding system can be divided into four sections： the parallel gliding section; the symmetric compressional section; the flexible creeping section and the folding nappe section. The classic flexible folding effect is found in microscopic distinction of the gliding system. The difference between gravity gliding tectonic of Shanwang Formation is discussed. The genesis of gravity gliding tectonic of Shanwang Formation is possibly relevant to volcanism. The acquisition of gravity gliding tectonic of Shanwang Formation is important to understand the formation and evolution of Shanwang Basin.

关 键 词：山旺盆地 山旺组 重力滑动构造 构造演化 

分 类 号：P312[天文地球—固体地球物理学]