Gold Mining: Proceedings of the International Conference on Gold Mining Technology, Beijing, China, 15-17 June 1993 |
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Page 85
... shearing ( shearing compressive — -- - slight tension ( tenso - shear late tension . They controlled different stages of mineralization of Hetai gold deposit , i.e. compressive ( compresso - shear ) structure controlled the early ...
... shearing ( shearing compressive — -- - slight tension ( tenso - shear late tension . They controlled different stages of mineralization of Hetai gold deposit , i.e. compressive ( compresso - shear ) structure controlled the early ...
Page 86
... shear zone . Metamorphism in this area manifests the devel- oping direction from schist to migmatite . For gold , it migrated to the lower metamorphic facies by thermodynamic process . In shear zone , it main- ly occurs as ductile ...
... shear zone . Metamorphism in this area manifests the devel- oping direction from schist to migmatite . For gold , it migrated to the lower metamorphic facies by thermodynamic process . In shear zone , it main- ly occurs as ductile ...
Page 87
... shear- ing , shear - compressive of ductile shear zone ) . The gold in the soure bed ( rock ) is remobilized , mi- grated . The ore - bearing fluid carried the gold into mylonite zone . Due to the tension produced hy the relax of late ...
... shear- ing , shear - compressive of ductile shear zone ) . The gold in the soure bed ( rock ) is remobilized , mi- grated . The ore - bearing fluid carried the gold into mylonite zone . Due to the tension produced hy the relax of late ...
Contents
Prospecting Criteria and DeepSeated Prognosis of Buried Ore in Jiapigou Gold Mining | 8 |
Update on Mining Activities on the Island of Hispaniola Dominican Republic and Haiti | 23 |
An Approach of the Geologic Genesis of Jinchanggouliang Gold Deposit Inner Mongolia | 42 |
Copyright | |
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Common terms and phrases
According alteration angle application average backfill belt blasting block body capacity carried cement China compressive concentration cost depth direction distribution district dredge drift drilling economic effect efficiency equipment exploration fault Figure flocculation formed fracture geological gold deposits gold mines grade ground higher holes important improved increase indices intensity length less load located loss lower major mass material measures mechanized method mill mineralization mining method occurred operation orebody period pillar placer present problems production prospecting Province quartz raise range ratio recovery reduced rock roof samples screen sericitic shaft shown shrinkage side slice sluice stage stope strength stress strike stripping structure surface Table tailing thickness tion trend upper various vein ventilation vertical wall zone