Gold Mining: Proceedings of the International Conference on Gold Mining Technology, Beijing, China, 15-17 June 1993 |
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Page 143
... Parameters Prior And Posterior To Exploration And Production At Some Stopes Of A Certain Gold Mine Reserves Parameters As of The Original Geologic Exploration Metal Grade ( g / t ) Table 2 Expenses To Be Invested For Reserves Of Various.
... Parameters Prior And Posterior To Exploration And Production At Some Stopes Of A Certain Gold Mine Reserves Parameters As of The Original Geologic Exploration Metal Grade ( g / t ) Table 2 Expenses To Be Invested For Reserves Of Various.
Page 317
... Parameters Selection of Bolt and Wire Cable 7 3 Fig . 2 Wire cables structure 1 borehole ; 2- anchorage head ; 3 ... Parameters - The roof of test block is the bedded slate . Ac- cording to the theory of compound beam , the support ...
... Parameters Selection of Bolt and Wire Cable 7 3 Fig . 2 Wire cables structure 1 borehole ; 2- anchorage head ; 3 ... Parameters - The roof of test block is the bedded slate . Ac- cording to the theory of compound beam , the support ...
Page 443
... parameters of each eqipment measured in the field , plotted an efficiency curve ( see Fig.2 ) . 5.2 Logged the net operating time rates of the mining equipment in the case of working alone as well as working with others . For instance ...
... parameters of each eqipment measured in the field , plotted an efficiency curve ( see Fig.2 ) . 5.2 Logged the net operating time rates of the mining equipment in the case of working alone as well as working with others . For instance ...
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 |
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93 ISGMT alteration Ankang anomaly Archean auriferous average backfill belt blastholes blasting block body bolts bulldozer cement content China chinese yuan concentration cost country rock cut-and-fill density depth deslimed mill tailing distribution dolomite dosage level dredge dredger drilling effect equipment exploration fault fill flocculation footwall geological gneiss gold deposits gold mines gold recovery grade granite gravels haulage Heilongjiang holes hydrothermal increase Inner Mongolia Jiaojia load lower magmatic material metallogenic metamorphic migmatite mineralization mining district mining method mylonite operation ore-controlling ore-forming orebody parameters permafrost placer gold placer mining production Proterozoic Province pyrite quartz quartz vein ratio resuing riffles rock mass roof samples screen sericitic shaft shear shotcrete shrinkage sill pillar slice sluice sluiceboxes slurry stage stope stress structure sublevel surface Table thickness tion trend unconfined compressive strength underground ventilation system vertical width Xiangxi Zhaoyuan