成矿的

Emplacement of metallogenic solution and forming of ore-body take place in post-orogenic or anorogenic setting.(7) Gold metallogenic types dominently are fracture zone altered rock type and quartz dyke type, and then dissemination type and cryptoexplosing brecciatype.

区内金成矿时代主要属于华力西期和印支期，金成矿热液的形成与板块碰撞期的岩浆活动和变质作用有关；矿液就位及矿体形成发生于造山后或非造山环境。

On the basis of a synthetic analysis of ore-forming conditions and regional mineralization characteristics in the Qilian metallogenic zone, it is proposed that marine volcanic, contact metasomatic, meta-sedimentary (including sedimentary exhalative) and ductile shear zone types are the major target ore-deposits in the zone.

在系统分析区内成矿条件和区域成矿特征的基础上，提出海相火山岩型、接触交代型、变质型、沉积型、构造蚀变岩型等是该区的主攻矿床类型。

Hydrogen and Oxy gen isotope compositions illustrate the ore-forming liquid is mainly magmatic water partly mixed with some meteorological water.

成矿流体的氢氧同位素结果表明本区的成矿溶液以岩浆水为主，混有部分大气降水。

The metallogenic geological background, structural control factor, geological characteristics of deposit in Dachang tin polymetal ore deposit are analyzed, the author thinks that the Dachang belong to polygenetic magmatic hydrothermal deposit, and it still have considerable exploration prospect s.

文章通过分析大厂矿田锡多金属矿成矿地质背景、构造控制因素、矿床地质特征，提出大厂矿床成因类型属物质多源岩浆热液矿床；认为该矿床还具有可观的找矿远景，提出开展大比例尺成矿预测的建

According to the geochemistry of fluid inclusions and the field observation, the mineralizing physical-chemical conditions and fluid evolution process are studied.

通过流体包裹体地球化学研究和野外地质观察，探讨了这2个矿床的成矿物理化学条件和成岩成矿中的流体演化过

The Axi deposit overweighed the Aiken deposit in multi-stage metallization, which is one of the major factors that lead the size of the Axi deposit larger than the Aiken deposit.

阿希金矿的多期成矿性明显，艾肯铜银矿不具有多期成矿性，这是阿希金矿矿床规模大于艾肯的主要原因之一。

While the direct metallogenic environment is epithermal fluid evolution system.

而直接的成矿环境为浅成低温水热流体的成矿演化体系。

The fluid geochemistry research bears out the ratio of W/R becomes more few from epithermal to porphyry.

成矿流体地球化学研究表明，大气降水在成矿系列中起到了重要的作用，水/岩比值由浅成低温热液低硫型→浅成低温热液高硫型→斑岩型有变小的趋势。

It is difficult to study directly ore-forming hydrogeochemistry of sandstone type uranium ore in arid area, therefore, author have found out the laws of solution, precipitation and migration of uranium minerals in the groundwater using the mechanism of water rock interaction and uranium, thorium and their isotopic ratios, and have probed into the relation between uranium ore-forming hydrogeochemistry condition, hydrogeochemistry environment and uranium ore-body fixed position by studying the epigenetic hydrogeochemistry trackways in the rock.

由于干旱地区对砂岩型铀矿成矿水文地球化学研究困难，难以取水样直接研究。因而在研究方法上，作者运用水岩相互作用原理和铀钍及其同位素比值，查明地下水中铀矿物溶解、沉淀和迁移规律；通过研究岩石中留下的水文地球化学形迹，探讨铀成矿水文地球化学条件、水文地球化学环境及其与铀矿体定位的关系。

These problems are determining recharge area position, water source, uranium source of the groudwater in sandstone; the relation between partial discharge source of the groundwater in sandstone and uranium ore-forming; the relation between mineralizing hydrogeochemistry condition and fixed position uranium deposit or uranium ore-body or uranium mineralizing range; and relation between hydrogeochemistry trackways (such as, uranium, thorium concentrations; Th/U,〓U/〓U,〓Th/〓U, and 〓Th/〓U ratios etc) in the rock and uranium ore-body fixed position and so on.

详细研究的问题有：含铀砂岩地下水补给区及水源、铀源问题；局部排泄源与铀成矿关系问题；成矿水文地球化学条件及其与铀矿床及铀矿体或铀矿化地段定位关系问题；以及岩石中水文地球化学形迹(铀、钍含量、Th/U、〓U/〓U、〓Th/〓U和〓Th/〓U比值等)与铀矿体定位的关系问题等。

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。