查询词典 siderite

Calcite siderite barite and others don't contain gold.

方解石、菱铁矿、重晶石等不含金。

The gas chromatography has extremely high sensibility to identify H_2, so it is a method to detect siderite which contains micro clays and impurity minerals with OH groups, vice versa.

由于气相色谱对H_2的检出灵敏度特高，可作为对菱铁矿中含有羟基结构的微量粘土及其矿物杂质的检测方法，反之亦然。

This is based upon a simple thermodynamic calculation that relates the absence of siderite (FeCO3) in some pre-2.2-Gyr palaeosols to atmospheric CO2 concentrations that would have been too low to have provided the necessary greenhouse effect.

该猜测是基于这样一个假设：低含量的菱铁矿表明大气中人们所熟悉的温室气体二氧化碳浓度相对较低，但大气中一定有高浓度的温室气体来补偿当时较低的太阳通量。

In the course of groundwater towards the center of the depression cone, not only the dissolution of calcite, dolomite and hematite, the precipitation of siderite and melanterite may occur, but also the cation exchange between Na+ and Ca2+, Fe oxidation- reduction of Fe may occur.

地下水在向降落漏斗中心区的径流过程中，不但发生了方解石、白云石和赤铁矿的溶解作用以及菱铁矿和水绿矾的沉淀作用，而且发生了Na+与Ca2+的交换、铁氧化-还原反应等一系列复杂的水-岩作用。

In the course of groundwater towards the center of the depression cone, not only the dissolution of calcite, dolomite and hematite, the precipitation of siderite and melanterite may occur, but also the cation exchange between Na(superscript +) and Ca(superscript 2+), Fe oxidation-reduction of Fe may occur.

地下水在向降落漏斗中心区的径流过程中，不但发生了方解石、白云石和赤铁矿的溶解作用以及菱铁矿和水绿矾的沉淀作用，而且发生了Na与Ca(上标 2+)的交换、铁氧化－还原反应等一系列复杂的水－岩作用。

Iron carbonate, FeCO3, as is siderite.

与菱铁矿一样，是碳酸亚铁FeCO3。

The enrichment of minerals such as siderite and pyrite, which are sensitive to geochemical environment, in the transitional zone indicates that the geochemical environment is neutral-acidic and reductive and is propitious to the precipitation of uranium.

过渡带中菱铁矿(FeCO3)和黄铁矿(FeS2)等对地球化学环境敏感的矿物的富集，指示了有利于铀成矿的中性-弱酸性、还原的地球化学环境。

It has been found that a lot of gypsum and zinc bearing siderite occur on the surface of Xitieshan deposit and near ore country rocks of the upper part of the ore body.

锡铁山矿床地表及上部中段的近矿围岩中发育大量的石膏和含锌菱铁矿，长期以来主要作为喷流沉积或后期改造的产物。

The result of studying is that the minerals of Fe in A layer clay-stone of kaolinite are hematite, goethite and siderite, but the most is hematite and goethite.

研究发现研究区A层高岭石粘土岩中铁质矿物主要是菱铁矿、针铁矿和赤铁矿，且以赤铁矿和针铁矿为主。

The result makes clear, can be restrained on certain level by starch but the siderite with weaker inhibition in hematite and quartz exterior adsorption overspreads a lid, it is the main reason that causes Dong Anshan to contain carbonate iron ore to turn over floatation difficulty.

结果表明，可在一定程度上受到淀粉抑制但抑制功能较弱的菱铁矿在赤铁矿和石英表面的吸附罩盖，是引起东鞍山含碳酸盐铁矿石反浮选困难的主要原因。

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。