山前坳陷

乌鲁木齐山前坳陷逆断裂-褶皱带及其形成机制

Reverse fault and fold zone in the Urumqi range front depression of the Northern Tianshan and its genetic mechanism

博格达山前坳陷是直接继承海西地槽的晚期坳陷渐进演变而成的，故是一种新类型。

The pre Bogda mountain depression was formed by directly succeeded to the gradually evolution of late Hercynian geosyncline , so it is a new type of pre mountaln depression .

而正因为塔里木地块以断条形式向南天山的俯冲行为，使得山前坳陷冲断带（及天山）发生分段。

It is just because the subduction of the Tarim block in the form of fault slivers that segmentation of the piedmont depression thrust belt ( and Tianshan belt ) takes place .

最后结合准噶尔盆地实际，分析了深盆气形成的地质条件，提出北天山山前坳陷侏罗系是勘探深盆气的有利地区。

Finally , combining with the facts of Junggar Basin , the author analyzed the geological conditions of deep basin gas formation and suggested that the Jurassic North Tianshan Piedmont Depression is the favorable area for deep basin gas exploration .