31 $RMB and the amount of gold mine increased by more than 30,000 ton per year with shrinkage stoping with shallow hole and keeping the ore to be left as new mining method.
0 7元/吨 ,改用浅孔留矿法后 ,采矿直接成本降为 2 0 。
There are two types gold deposits in Jiaodong Area,mesothermal vein type and epithermal vein type gold deposit.
本文据平度 1号脉的特征矿物 (胶黄铁矿、菱铁矿、萤石 )的地质产状研究 ;矿石的Au、Ag、Pb、As、Sb、Bi、Co、Ni等 8个元素 ,与已知的中深成金矿 (玲珑九曲、莱西南墅 )和浅成金矿 (烟台金矿 )的对比研究 ,阐述平度 1号脉存在晚期金叠加成
The exploitation and utilization of this deposit may be brought along by speeding up the search for a certain amount of rich and shallow-seated ores.
岩浆型铜镍矿床是铜镍之重要来源，新疆哈密黄山地区铜镍硫化物矿床为特大型矿床，但因多为深而贫的矿体，至今仍未开发，只有在本区加速寻找一定数量浅富矿体，方可带动本矿的开发利用。
Theyare theories of syngenetic metallogenesis,supergene metallogenesis,microbiogenic metal-logenesis,marginal metallogenesis,latitudinal zoning metallogenesis hypothesis,softand/or hard acid-alkali metallogenesis,formation analysis metallogenesis,supergene hy-drothermal precious metal metallogenesis,petrogenetic metallogenesis and bacterial crys-.
本文简要分析了成矿理论的发展趋势，重点对１０种现代成矿理论作了简要的介绍，它们是：同生成矿理论、浅生成矿理论、微生物成矿理论、边缘成矿理论、纬度分带成矿学说、软硬酸碱成矿理论、建造分析成矿理论、浅成低温热液贵金属成矿理论、成岩作用促使沉积成矿理论和砂金成矿的细菌结晶机制。
The Appling of Mining Method by Stage Avalanche and Shallow Bore Withhold Mine Coulping of XiaDian Gold Mine
夏甸金矿分段崩落与浅孔留矿耦合采矿方法的应用
Shallow burial seems to preserve chalky textured porosity.
浅埋藏似能保留具白垩状结构的孔隙。
Production practice of short hole mining technique in Xinhua Molybdenum Mine
浅孔落矿技术应用于新华钼矿的生产实践
Study and Application of the Technique for Gas Drainage through Shallow Holes in the Stress-relaxing Zone at Pingmei No.4 Mine
卸压区浅孔抽放技术在平煤四矿的研究与应用
Shallow Hole Pillar of a House Fills Mining Law" Application Study in Li lou Iron Mine Hereafter
浅孔房柱嗣后充填采矿法在李楼铁矿的应用研究
EARTHQUAKE EFFECT OF HIGH-LEVEL LARGE-DIAMETE R LONG HOLE BLAST IN ANQING COPPER MINE
安庆铜矿高阶段大直径深孔爆破地震效应的浅析
Analysis of Open-pit Mine in the Deep-hole Blasting Mass and Root Causes and Treatment
浅析露天矿中深孔爆破大块和根底产生的原因及治理
Unite Mining Test and Application of Shallow Hole Shrinkage Stoping Method and Up Level Slicing Filling
浅眼留矿与向上水平分层充填法联合开采试验与应用
Conference on Shallow (Small) Oil and Gas
浅层(小)油矿和气矿会议
Metallogenic Characteristics and Pospecting Direction of Liushutang Lead-zinc Deposit
留书塘铅锌矿床成矿特征与找矿方向
The Usage of Static Shrinkage Stoping in Erdaogou Gold Mine
静态留矿采矿法在二道沟金矿的应用
borehole content analyzer
钻孔矿物含量分析仪
sublevel blast-hole method
深孔分段崩落采矿法
Study on the parameters of highwall auger mining in open pit mine
露天矿高边坡钻孔采矿法的参数研究
The safety technologies of the hole of manually dig cast-in-place pile
浅谈人工挖孔灌注桩成孔的安全技术
Application of Pulse Chute Stoping in Jinchiling Gold Mine
脉内溜井留矿法在金翅岭金矿的应用
Studies on the Relationship between Retention and Pore Size of Porous Ceramic Membranes;
多孔陶瓷膜截留性能与膜孔径关系的研究
epithermal gold deposit
浅成低温热液金矿床