成矿的

This flat faulting may be more pervasive than previously thought, with a number of imbricated structures providing a favourable environment at several layers in the volcanic pile and in the surrounding area.

这些平缓断裂比以前想象的分布可能更广一些，平缓断裂中大量的叠瓦构造在火山堆和邻近区域的几个层面为矿物提供了有利成矿环境。

Now, Sr isotopes can be used not only to constrain the origin and evolution of magma and hydrothermal ore-forming solutions, calculate the scale and degree of lithogenesis and ascertain the relations between fluids and rocks, but also to study sea-level fluctuation, plate movement, ocean-floor spreading and lithogenic evolution.

现在，锶同位素不仅在示踪岩浆及成矿热液的来源和演化、计算晚期成岩改造作用的规模和程度及流体/岩石比等方面已趋于成熟，并且越来越广泛运用于海平面变化、板块活动、海底扩张、成岩演化等方面的研究。

Studies of magmatic rocks and their relations with metallogenesis have long been concerned with by scholars both ...

岩浆岩及其与成矿关系的研究历来都倍受国内外学者的重视，一直是矿床学和矿床地球化学的研究热点之一。

The Daping mine is a ductile shear zone controlled mesothermal deposit, which was formed by rapid decompression and subsequent boiling and deposition.

结合其它证据，作者认为该矿的成矿流体主体为深源的壳幔混合流体，而不是地壳浅部的大气降水、岩浆水或其混合流体。

It can be concluded that: First,primary deposit and placer deposit are two main deposits in this origin;Second,the primary deposit formed at hydrothermal stage and mesothermal stage between Presinian and Cretaceous;Third,the feature of ore body is wide and scattered on distributing,small on scale;Four,the storage capacity of the crystal is very abundant,its quality is fine,depth of burial is s.

通过对江苏东海区域成矿地质条件以及含晶石英脉成群成带分布规律的研究，得出以下结论：①该区水晶矿床为原生矿、砂矿两种类型；②水晶原生矿形成于前震旦纪以后到白垩纪以前的高、中温热液期；③矿体具分布广、规模小、分布散等特点；④东海水晶储量丰富、品位极高、埋藏浅，具有很好的开发利用前景。

In that five years,both uranium exploration ,regional assessment and prognostication for the Mesozoic-Cenozoic basin in North China and resarch on uranium metallogeny theory and prospecting .

5年来，我国北方中新生代盆地的铀矿勘查、区域预测评价及铀成矿理论和勘查方法研究等都取得了较快的进展和重要的成果。

The main ore bodies found up to now are mainly located to the south of the monzonitic granite. The area within 1-3 km south of the Beida-shan monzonitic granite is thought to be the most favorable sites for the search for new parallel and high-grade ore bodies.

Au/Ag比值和-图解显示，北大山二长花岗岩提供了成矿所需热源，已发现的主要矿体都在该花岗岩南部，距北大山二长花岗岩南1~3 km范围是寻找新的平行富矿体的最有利地段。

To 2412Ma. but also certificates the multicycle and inheritance of tin mineralization in the region; moreover, it provides an instance for marine exhalative tin mineralization associated with mafic magmatic activity.

此举不仅将我国锡矿成矿时代从800Ma左右推前至2412Ma左右，而且证明了该区锡矿化的多旋回性和继承性，也提出了一个与镁铁质岩浆活动有关的热卤水锡矿化的实例。

The height of the steps on crystal faces increases with the increment of oversaturation degree of gold. The density of the steps adds with the rise of alka...

这一结论得到河南祁雨沟金矿、阶段自然金晶体形态的证实，并与其它金矿的地质事实和人工合成实验结果相符，其对金矿成矿和找矿研究具一定的指导意义。

Based on the basic theory and method o f" polygenetic compound deposit ",this article analysed geological mineralization characteristics and metallogenic law of the3110uranium deposit.

本文运用&多因复成矿床&的基本理论和方法，对华南3110铀矿床的地质矿化特点及其成矿规律进行了深入的解剖。

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。