| The study of ductile shear zone is one of the hot points in structural geology recently. More and more people are focus on the ductile shear zone(DSZ),especially on the relationship between the DSZ and metallogenesis .It has always made great progress. On the basis of specific fund which is the 1:5000 regional geological survey in Saridala of Changji in Xinjiang Uygur Autonomous Region, it considers that Bingdaban DSZ of Tianshan in Xinjing locates in east part of Western Tianshan, and eastern Boluohuoluo Mountain. It traverses mid-part of the study area, and distributes the south side of Bingdaban fault,and between Bingdaban fault and Hongwuyueqiao fault.The deformation characteristics mainly are ductile, ductile-brittle and superposed by brittle deformation.The main faults are Bingdaban fault and Hongwuyueqiao fault. The Bingdaban fault ,which has a nature of long period movement, different deep arrangement, different deformation mechanisms and multi characteristics, is a regional compounding deep fault. Hongwuyueqiao fault is a multi-periods movement, multi-natures regional fault, but the scale is smeller than the former. Bingdaban DSZ is a banded distribution competent strain belt in space, macro-characteristics exhibit a series mylonite zone and competent schistositilization deformation zone. The deformation strata mainly are Statherian strata, mesoproterozoic strata, fore-Carboniferous strata, Variscan granite and granodiorite, etc, Constitution style is a parallel banded DSZ.Kinematics and dynamics characteristics of Bingdaban DSZ display that the early period deformation is mainly right-handed ductile shear type, and has especially left-handed ductile shear nature in it. Medium-term deformation is right-handed strike-slip brittle-ductile shear deformation and superposed by the upper brittle deformation. The maximum principal stress is proximity east-west direction in the right-handed shear deformation, and maximumprincipal stress is northwest-southeast direction in the upper brittle deformation.The longitudinal zoning is clear of Bingdaban DSZ, from boundary to center, the structural deformation is gradually increased, but it has not classical structural deformationassociation,ie,miloniticed rocks- protomylonite- mylonite- ultramylonite- phyllonite,moreover, different structural deformation rocks are superposition and interpenetration each other partly. There is a strongly deformation mylonite zone, ductile deformation and ductile-brittle deformation are clear in south of Bingdaban fault. Between Bingdaban fault and Hongwuyueqiao fault, the brittle deformation is dominant, structural arrangement is lower than former,and characteristics of superposed brittle deformation are common in upper-term.lt has a positive correlation between paleo-differential stress and deformation degree in Bingdaban DSZ.The homogeneous strain Fullin map of Bingdaban DSZ shows a contracted strain (long ellipsoid), feathering horizontal shear-elongation pattern; ellipticity R on Fry determination is about 1.78.The total homogeneous strain in statistics infers that the strain ellipsoid is a axial symmetric pattern. Researching on deformation, mechanical twin, kink band, and temperature determination on inclusion, etc. shows, the forming temperature of Bingdaban DSZ is among mid-low temperature condition. The whole rock Rb-Sr and single-grain Cr dating of correlated lithesome in Bingdaban DSZ infer that the end of early period mid-deep ductile shear deformation is about 302Ma, and then the second mid-shallow brittle-ductile shear strain probably lasts to the end of Permian period, brittle deformation superimposes on top of it. In the region, the gold deposits ,which correlated to Bingdaban DSZ,are mainly yield in sorts of extension cracks, extension-shear cracks, or the dilated space between strong deformation and weak deformation in brittle-ductile deformation transition band.
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