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Magnetic Fabrics Characters of Inner Mongolian Bingtu-Daquanzi Ductile Shear Zone and the Relation with Gold Deposit
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摘要

    

At Bingtu-Daquanzi area ductile shear zone is developed and accompanied by gold deposit. Based on the characters,  the authors believe that a pair of clockwise couple was formed on the both sides of the discontinuous plane to make Bingtu-Daquanzi ductile shear zone strike-slip in right direction. The shear heating and upwelling of upper mantle materials lead to high temperature and pressure metamorphism at middle-lower crust in the extent of the ductile shear zone and sub-alkalic CO2-rich fluid resulted from heat drying effect were brought to the mid-upper crust where Au minerals and polymetallic sulfides precipitate along foliations and micro-fractures of myllonite in brittle zone due to release of pressure and boiling to form ductile shear zone type gold deposit.

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