STUDY ON GOLD ORE-CONTROL STRUCTURE IN HONGHUAGOU, INNERMONGOLIA

Honghuagou ore-field has suffered three times ductile deformation and mutiple brittle deformation. Gold-bearing quartz were yielded in the ductile shear zone accompaning D₃ deformation. The distribution and occurrence and shape of orevein are strictly controlled by the movement and the pattern of mineralizational structure. The ductile shear zones accompaning D₃ deformation were reacted during the Mesozoic tectoni-magmatic activity, Which is the main mineralizational period. The posthumous activity of fault structure control the multiple phrases of mineralization.