Crustal shortening of tian shan is centered in foreland depression , but we also think about shortened length of intermont area 天山的地壳缩短量主要集中在天山山前坳陷中，但也要考虑天山山间活动构造的贡献量。
3.
The basin tectonic model : it is intermont basin during late jurassic to early cretaceous , developed into faulted - lacustrine basin in eogene , and evolved into depression in neogene and quaternary “盆地”构造发育模式为：从晚侏罗世到白垩纪末期发育的山间“盆地”开始、发展到早第三纪断陷湖盆的发育、再演化为晚第三纪及第四纪地陷发育阶段。
4.
Yanqi basin is an intermont basin of tian shan , there is a nww trending right lateral strike slip active fault in southwestern basin , its maximum slip distance is 210m , and slip rate is about 10mm / yr , moreover , there is a west - east trending active anticline along northern basin 焉耆盆地是一个天山山间盆地，盆地西南缘发育一条走向北西西的右行走滑活动断层，最大走滑距离为210m ，走滑速率约10mm / yr ，盆地西北缘发育走向近东西的活动褶皱。
