成矿的

The copper_bearing minerals mainly occur in the form of heterogeneous gobbets and veinlets disseminated in various veins such as K_feldspar_quartz veins, epidote veins and quartz_calcite veins, which are obviously controlled by NNW_striking faults.

中文摘要：通过对卡拉先格尔铜矿带中的哈腊苏斑岩铜矿床详细的野外地质调查和系统的同位素地球化学示踪和测年研究，探讨了阿尔泰南缘铜矿的成矿时代及矿床成因。

Recognized the regional geological history and the lack of external Sr sink epidote among the hydrothermal mineral assemblages, we refered that the Rb-Sr isoehron isotope date was the hydrothermal ore formation age.

因此本文通过Rb-Sr等时线所确定的250±20Ma同位素年龄具有地质意义，结合对区域地质演化史的基本认识及金矿石热液蚀变组合的研究(易捕获外来锶的绿帘石不发育)，该同位素年龄代表热液成矿年龄。

The results shows that all these elements are enriched in the glass phase except for Al and Mn, and all the elements are depleted in the mullite-corundum phase except for Al.The iron group elementsand the ore-forming metalsare enriched in the ferruginous spheres, but the rest elements are depleted.

结果表明，除Al、Mn外，其他元素均在玻璃相中有不同程度的富集；除Al外，其他元素则在莫来石-刚玉相中有不同程度的贫化；除Ti以外的铁族元素以及除Ga、Pb以外的金属成矿元素均在铁质微珠中富集，其他元素则在其中贫化。

It was concluded that a noble and base metal metaflogenic series was composed of the inner part of BIFs and ferruginous rock series. And mantle plume had close spatio-temporal and genetic relationships with BIFs. In anoxic environment in Precambrian, the anaerobic bacteria would provide oxygen for ferruginous deposition during photosynthesis.

认为BIFs内部以及包括BIFs在内的含铁岩系均构成贱、贵金属成矿系列；地幔柱与BIFs之间存在密切的时、空和成因联系；在早前寒武纪缺权的环境下，厌氧的细菌类生物通过光合作用为BIFs中铁质沉淀提供了氧。

Physical mechanical characteristics of the rocks in gold-bearing formation suggest the alternating pattern of sand gritstone and slate be available for activation, migration and concentration of gold.

系统探讨了矿源层岩石的物理力学特征，证明含Au变质建造的砂岩、板岩互层的构造特征最有利于Au的活化、迁移和富集成矿。

It yields an Rb-Sr isochron age of 174.4Ma Ma (2σ), which is in accordance with their host granodiorite dated as 173.3±2.9 Ma by single-grained zircon U-Pb method.

黄铁矿Rb-Sr等时线年龄与花岗闪长岩体的单颗粒锆石U-Pb年龄十分一致，表明矿床的形成与岩体有密切的联系，花岗闪长岩体提供了矿床形成所需要的能量和部分流体，而地层也提供了部分成矿物质。

Data of major andminor elements in magnetite, cassiterite, galena and sphalerite from oredeposits within this ore belt suggest that these ore deposits are of skarn,hydrothermal, porphyry and greisen types related to Yanshanian magmaticactivity and that iron in ores came from regional Permian marine interme-diate-basic volcanic rocks whereas partial lead and zinc from Permian geo-synclinic sediments.

矿带中各矿床的磁铁矿、锡石、方铅矿、闪锌矿的主元素和微量元素数据表明，这些矿床是属与燕山期岩浆活动有关的矽卡岩型、热液型、斑岩型和云英岩型矿床；其成矿金属组分中的铁来源于区域晚古生代海相中-基性火山岩，部分铅锌来源于区域二叠纪地槽沉积物。

A complex brownish - black mineral,UO2,forming the chief ore of uranium and containing variable amounts of radium ,lead,thorium,and other elements.

沥青铀矿黑褐色的合成矿，UO2，主矿为铀，还包括不定数量的镭、铅、钍和其他元素枪管的一端装有镭。

Fluid flow and component transport in fractured porous media are very important for understanding metallic ore formation,oil and gas migration,and transportation of pollutes and has attracted extensive investigations in recent two decades.

：断裂多孔介质中的流体流动和组分输运过程对于理解金属成矿过程、油气运移、污染物质的输运和分布十分重要，近 2 0年来得到了广泛的研究。

The progresses of tracing ore-forming fluids in different kinds of ore deposits using rare gas isotopes are summarized, and some problems and the developing tendency about this method are also discussed.

归纳了近年来用稀有气体同位素来示踪成矿流体的研究进展，概括了其在不同类型矿床中的应用现状，并指出当前该方法存在的问题及发展趋势。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。