坳陷
The basins on the western of Algin Rift were all compressive depressions,their geothermal gradients were lower. 阿爾金斷裂以西為擠壓坳陷型盆地，地溫梯度普遍較低。
It is probable that local furrows and wider depressions, caused by buckling of the accumulated silicate layers during tectonic movements. 可能有局部溝豁以及寬的坳陷，在構(gòu)造運(yùn)動(dòng)過程中由堆積的硅酸鹽層彎曲造成。
