白铁矿

Our investigation shows that neither the dioritic porphyry nor the sedimentary rock is the source of iron ores, and that the source of most ironrich orebodies is the ore magmahydrothermal system in the deep chamber. Ore magma which was formed by liquid immiscibility is the main source of Gushan deposit, and the residual ironrich hydrothermal fluids which occurred as NaFeCl complex is the main source of Baixiangshan deposit.

根据野外观察和地球化学研究，文中认为，闪长玢岩岩体和沉积围岩均不是铁质的主要来源，富铁矿体的成因主要来自矿田深部的矿浆热液系统，姑山式铁矿的铁质主要是液态不混溶作用形成的铁矿浆，白象山式铁矿的铁质主要来源于深部残浆分离出的NaFeCl络合物。

A sterling silver and marcasite frog rests on a polished round of gorgeous green jade in this charming small pendant.

阿纯银和白铁矿青蛙建立在一个华丽的翡翠在这个迷人的小挂件打磨轮。

A swirl of glittering dark marcasite gives this glowing red heart pendant a mysterious look.

一个漩涡的闪闪发光的黑暗白铁矿给这个光辉的红色心吊坠一个神秘的期待。

Tendrils of rope-textured silver and dark marcasite stones wrap the heart in front and continue along the ornate bale.

鬓绳材质银，黑石头包心白铁矿在前面，继续沿著华丽捆。

Transmission electron microscopy study indicates that microcrystalline Fesulfide crystals around large pyrite crystals from Carlin mine of Nevada are marcasite.

透射电子显微术的研究表明，美国内华达州卡林金矿中环绕黄铁矿大晶体的Fe的硫化物微晶乃是白铁矿。

The chain has been oxidized to give it a darkened finish which makes it a superb chain to match oxidized pendants, pendants set with marcasite, or other genuine antique or vintage pieces.

这家连锁店已经被氧化为给它一个黑暗的完成这使得它拥有一支优秀链匹配氧化吊坠，吊坠设置与白铁矿，或其他真正的古董或老式件。

Indeed, the Grand Canal was constructed partly utilizing the pre-existing channels connecting these lowland swamps and lakes (3) Several rivers have produced deltaic forms on the western side of the lakes;(4) A series of artificial islands have been constructed upon the natural bars or barriers located in the lakes and wetlands, and are locally termed Duo, Dun or Wei (meaning artificial bars or crossways in Chinese).

钻孔B/M界线之下(4078 m～4530 m)的泛滥平原河湖相沉积物中局部地段富含铁锰鲕粒，其主要矿物组成为蛋白石、铁的氢氧化物(包括纤铁矿、水纤铁矿、针铁矿、水针铁矿，统称褐铁矿)、铁锰氧化物(包括硬锰矿和软锰矿，以硬锰矿为主)及极少量的细小碎屑矿物(钾长石、蚀变黑云母、含铁白云母、锆石、独居石、金红石和含钛磁铁矿)。

The sulphur in E'Kou Ironstone comes from sulphide (pyrite,pyrrhotite,chalcopyrite, binarite)and sporadically distributes in the ore or veined parallels/intercalates banded ferrosilicon formations.

峨口铁矿矿石中的硫来源于硫化物(黄铁矿、磁黄铁矿、黄铜矿、白铁矿)，呈星点状，散布于矿石中或呈脉体平行或穿切硅铁建造条带。

II. sulfid marble tile , include yellow iron ore, white iron ore, yellow bronze ore, yellow tin ore etc.

二、硫化铁：含铁硫化物的矿物有黄铁矿、白铁矿、黄铜砂、黄锡矿等。

Process development for the gold concentrate roasting- cyanide leaching in China;2. The feasibility study of extracting gold by liquid membrane techuique from the pulp of cyanide leaching ;3. Discussion on the cause of low silver leaching rate taken place in gold and silver cyanide leaching and ways to increase it

加强充气搅拌预氧化可将含金硫化矿在磨矿过程中产生的、对氰化浸出有害的难免离子氧化成对氰化浸出无害的离子，同时在磁黄铁矿和白铁矿颗粒表面生成Fe3薄膜，阻止了它们的进一步溶解，从而大大提高了金银的氰化浸出率。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。