eji造句

• Chagan sag is a secondary tectonic unit in chagandelesu depression, northeastern yingen-eji'naqi basin, and the basement of the basin is a paleozoic fold belt of continental margin or island arc at the connection region of north china plate * tarim plate and kazakstan plate, with the character of erogenic belt . in working area and its adjacent area, the forming tectonic setting of indosinian intrusion was that orogenic belt pressed strongly, intracontinental subduction; that of early yanshan movement epoch was the stress field transferred from compression to extension meanwhile the incrassate crust of orogenic zone turned to extensional collapse; and that of early cretaceous volcanics was that the area structure extensional collapse further more during the post period of orogenic phase
  查干凹陷属于银根?额济纳旗盆地东北端查干德勒苏坳陷内的一个次级构造单元，其盆地基底为古生代时期华北板块、哈萨克斯坦板块和塔里木板块交接部位形成的陆缘或岛弧褶皱带，具有古生代造山带的性质。研究区及邻区印支期侵入岩形成于造山带强烈挤压陆内俯冲的构造环境；燕山早期侵入岩形成于由挤压转向拉伸、造山带的增厚陆壳开始发生伸展垮塌的构造环境；早白垩世火山岩形成于造山期后进一步发生伸展垮塌的区域构造环境。