盆地的基底是前寒武系变质岩。
Precambrian metamorphic rocks constituted the basin basement.
它们均位于前寒武系隐伏基底及其边缘结合部位。
They exist in the verge and the combine zone of Cambria system insidious bases;
在东秦岭前寒武系变质岩中，发育了许多Z字型叠加褶皱。它们是由近直立的片麻岩和长英质脉形成的。
Z-shaped superposed folds formed by nearly vertical gneiss and feldspar-quartz veins are widely developed in East Qinling Precambrian metamorphic rocks.
该“潜伏”脉带的金矿化限于寒武系以硅质岩为顶板的碳质页岩中，明显受成矿前产生的韧性剪切带控制。
Gold mineralization of the zone is confined only to the Cambrian carbonaceous shale overlain by siliceous rocks, and apparently controlled by a premineral tough shear zone.
新疆塔里木盆地周边发育前寒武纪变质岩系，其太古宙变质岩系分布在库鲁克塔格—星星峡及阿尔金山前。
The Precambrian metamorphic rocks are developed at the margins of Tarim basin of Xinjiang, among which the Archean metamorphic rocks are distributed in Kuruktag-Xingxingxia area and Altun forelands.
新疆塔里木盆地周边发育前寒武纪变质岩系，其太古宙变质岩系分布在库鲁克塔格—星星峡及阿尔金山前。
The Precambrian metamorphic rocks are developed at the margins of Tarim basin of Xinjiang, among which the Archean metamorphic rocks are distributed in Kuruktag-Xingxingxia area and Altun forelands.
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