摘要
THE studied region is near the Alatao Pass in the northwestern Xinjiang Uygur AutonomousRegion.It is near the northeastern margin of the Gongneis Plate tectonically.The Aibihufault,situated in the northeastern border of the plate,striking NW,is a component of theBoloholo suture zone which separates the Gongneis Plate from the Junggar Plate.The Pre-cambrian basement crops out in the Wenquan County,about 100 km west of the studied re-
