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ductile shearing
The Duolanasayi gold deposit, 60 km NW of Habahe County in Xinjiang, is a medium-large scale gold deposit controlled by the coupled ore-forming processes involving brittle-ductile shearing, albitite veins, and post-stage magma solution.
      
The Duolanasayi gold deposit, 60 km NW of Habahe County, Xinjiang Uygur Autonomous Region, is a mid-large-scale gold deposit controlled by brittle-ductile shearing, and superimposed by albitite veins and late-stage magma hydrothermal solutions.
      
The second and main stage of gold mineralization was associated with renewed ductile shearing during D2.
      
To the south-west, in the Hornachos sector, large-scale recumbent folds associated with ductile shearing can be seen.
      
Later Devonian amphibolite-facies metamorphism caused ductile shearing of the pegmatites, leading to partial recrystallisation of pegmatitic material.
      
Field evidence indicates that ductile shearing developed pre- or syntectonically to a migmatization event.
      
Direct dating of the deformation is not possible, but the cooling history record defines a minimum age for the development of ductile shearing and the last migmatization event.
      
The earliest event corresponds to top-to-the SSE ductile shearing within the intermediate unit, interpreted as reflecting Mid-Late Cretaceous crustal thickening and nappe stacking.
      
The lead-zinc bearing Proterozoic rocks of Zawar, Rajasthan, show classic development of small-scale structures resulting from superposed folding and ductile shearing.
      
Evidences for high temperature ductile shearing are preserved at places.
      
In ductile shearing the material integrity is not lost during deformation.
      
 

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