矿层

Authors suggest that uranium ore formation occurred after the appearance of the above subsidiary tectonic units, and sandstone bodies of the Ⅱ,Ⅲ,Ⅳ,Ⅶ cycles, Shuixigou Group in the southern syncline, and sandstone bodies of the Ⅰ,Ⅱ,Ⅲ,Ⅴ cycles, Shuixigou Group, as well as sandstone bodies of Xiaoquangou Group in the northern monoclinal zone, they are ...

文章认为铀成矿作用发生在这些次级构造单元形成之后，且具有找矿前景的是南部向斜带水西沟群第Ⅱ、Ⅲ、Ⅴ、Ⅶ旋回砂体和北部单斜带水西沟群第Ⅰ、Ⅱ、Ⅲ、Ⅴ旋回砂体及小泉沟群砂体。从容矿层位连续性、分布面积、砂体特征及层间氧化带发育特征等成矿条件看，北部单斜带铀成矿条件和找矿前景均优于南部向斜带。

In the stone coal layer and the overlying black shale, there is a pyrite layer.

在石煤层或其上部的碳质页岩中含黄铁矿层。

According to petrologic analysis of 18 samples of altered rock, phlogopite rock , with regard to its B 2O 3 content, it is generally restricted to the outside of the ore bed, having certain ties with the boron minerlization while no ties are found in altered rock of the same type associated with veins of diorite porphyrite.

其中金云母岩多分布在含矿层外带，通过对 1 8件金云母岩样品中B2 O3含量分析，表明正常蚀变岩中的金云母岩与硼矿有一定的关系，而由闪长玢岩脉体侵入影响下形成的金云母岩则与矿化无关。

After pidgeon process, with the reductant of ferrosilicon, the experiment show that accord with the Mg metal smelting requirment at all.

矿层稳定，性能良好，经以硅铁作还原剂，采用横罐外热法炼镁试验结果，完全符合冶炼金属镁的要求。

Even within the southern sector, correlation of seams in the pyroxenite series is at present uncertain

甚至在南段之内，辉岩组中的矿层对比目前也不肯定。

Pyroxenite or anortlesite partings a fraction of an inch to 2 feet in thickness and tens of feet to hundreds of feet in length are also present in many seams.

在许多矿层中还见到辉岩或斜长岩夹层，厚几分至2尺，长几十到几百尺。

In shafts where self-ignition of gases is possible, main transport lanes shall be deployed in rock layers or in ore layers where self-ignition is unlikely, and, effective measures for precaution, for instance, grouting up, to prevent self-ignition, are necessary

有自然发火可能性的矿井，主要运输巷道布置在岩层或者不易自然发火的矿层内，并采用预防性灌浆或者其他有效的预防自然发火的措施。

The early mineralization is related to sedimentation, which resulted in the formation of the siderite ore-body and some pyrite orebodies.

作者在综合分析该矿田的地质－地球化学特征的基础上，认为新桥矿田具有二期成矿作用的特点早期沉积成矿作用形成菱铁矿矿体和不具有工业意义的黄铁矿层。

The Tianlu sandstone copper deposits located in the Silurian period stratum that belong to the northern part of north Qilan orogenic belt. The ore bed is hosted in the basal gray green layer of Hanxia Group or the graygreen interbed in the purplish layer.

摘 要：北祁连天鹿砂岩铜矿床产在北祁连造山带北部志留纪地层中，矿层产于旱峡组灰绿色岩层底部或紫红色岩层的灰绿色夹层中，具有稳定的层位特征。

The main metallogenic elements and associated elements are concentrated in Silurian, Devonian and Carboniferous strata, which are, thus, the most potential horizons for prospecting.

西天山主要成矿元素及其伴生元素集中在志留系、泥盆系和石炭系中，因而它们是研究区内最有潜力的找矿层位。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。