褐铁

围岩蚀变有硅化、绢云母化、黄铁矿化、褐铁矿化。

The alteration of country rocks were composed of silicification , sericitization , pyritization and limonitization .

云南某难选褐铁矿石选冶联合工艺研究黄梅褐铁矿悬浮闪速磁化焙烧试验研究

TEST RESEARCH ON MINERAL DRESSING-METALLURGY COMBINATION PROCESSING OF A REFRACTORY LIMONITE ORE IN YUNNAN Study on Flash Magnetizing Roasting of Huangmei Limonitic Ore

围岩蚀变发育，类型多样，其中云英岩化、黄玉化、萤石化和褐铁矿化是重要的找矿标志。

Greisen-lithify , topaz-lithify , fluorite-lithify , and limonite-lithify are important mark in seeking mine with alteration wall rock development and type variety .

主要蚀变类型有硅化、绢云母化、绿泥石化、黄铁矿化、褐铁矿化、高岭土化和碳酸盐化等。

The main types of the wall rock alteration include quartzitification , sericitization , chloritization , pyritization , limonitization , kaolinitization , carbonatization .

本区成岩现象较多，成岩变化复杂，通过镜下观察到的成岩现象主要有压实压溶、充填、白云石化、重结晶、褐铁矿化、溶蚀及与构造有关的破裂作用等。

The main diagenesis observed through the microscope are pressure solution compaction , filling , dolomitization , recrystallization , limonitization , corrosion and fracturing related structure .

特别是在矿区的南面，发现三条北东向铅锌矿化断裂破碎带和数条褐铁矿化断裂破碎蚀变带，为本区最重要的找矿远景区。

Especially in the south of the mining area , three northeast lead-zinc faults and several broken limonite alteration zone in this area are the most important area of prospecting .

前言：本文围绕与微细浸染型金矿有关的硅化、褐铁矿化、粘土矿化、碳酸盐化等蚀变标志，在黔桂地区进行了相关的地球化学和光谱信息研究。

This paper studies the geochemical and spectral information on the " silification " . " lemonitization " . " clayization " . and " carbonatization " related to finedesseminated-type gold deposits in Qian Gui area .

直接找矿标志为岩体与地层接触带及具辉钼矿化、黄铁矿化、黄铜矿化、硅化、褐铁矿化地段。

The directly sign of deposits is that the contact-belt of magma with stratums , the areas where have been had the mineralization such as molybdenite , pyrite , chalcopyrite , silicon , limonite and so on .

营里金矿床产于燕山晚期闪长玢岩与三叠系和尚沟组长石砂岩的外接触带蚀变矿化破碎带中，褐铁矿化强烈是本区寻找金矿的重要找矿标志。

Yingli gold deposit is located in the altered mineralized fracture zone of the outer contacting belt between the later Yanshanian diorite porphyry and Triassic Heshanggou group feldspar sandstone . Limonitization is the ore finding sign in the district .

它是通过对1：5万比例尺航空磁力测量M－42号异常进行地面检查而发现的基性&超基性岩体，地表有孔雀石、褐铁矿化、铜矿点。

The anomaly in the point M-42 discovered from aeromagnetic survey ( 1 : 50 000 ), coupled with surface investigation , helps to discover the basic-ultrabasic rocks . The iron and copper mineralizations were also discovered from malachite at the surface .

通过实验，比较了活性炭、粉煤灰、褐煤粉与铁组成的微电池反应体系对印染废水的净化处理性能；

In the lab experiments , purification efficiency of different micro-cell systems such as iron-active carbon , iron-flyash , iron - brown coal had been investigated and compared for the treatment of the dying and printing wastewater .