黄铁矿

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。

By combining with pyritethermoelectricity coefficient thermometry result (100℃～240℃) and inclusion equal thermometry result(226℃～230℃and 113℃～153℃) it shows that the heated temperature of the black shale series ofNiutitang formation is between 60℃and 250℃, and the max paleotemperature between 200℃and 250℃,which belongs to the middle-lower temperature sedimentary and rock-forming and ore-forming actions inLower Cambrian black shale series in northern Guizhou.

结合前人黄铁矿热电系数法测温(100℃～240℃)和包裹体均一法测温(226℃～230℃和113℃～153℃)，判定牛蹄塘组黑色岩系的受热温度介于60℃～250℃之间，经历的最高古地温估计为200℃～250℃，属中、低温沉积成岩成矿作用，并以低温(200℃以下)沉积成岩成矿作用为主。

Their characters include (1) the particular configuration of the MT structures;(2) the obvious interface with rich organic matter and pyrite between the MT ribbon cracks and the host rock;(3) the host rocks are characterized by nonstromatolitic micrite limestones with few liminites;(4) the special macroscopic fossils of algae which were simultaneously developed with the MT structures.

这些特征包括：(1)臼齿状构造特别的形态学特征，(2)由微亮晶所充填的臼齿状裂缝具有明显的边界（以富集残余有机质和黄铁矿为特点），(3)臼齿状构造的宿主岩石是不发育叠层石和纹理化构造的隐晶质泥晶灰岩，(4)与臼齿状构造常常共生的极为特别的宏观藻类化石等。

Mineral compositions of phosphate concretions mainly contain apatite, quartz, calcite, barite, pyrite and organic matter, etc.

磷结核的矿物组成主要有磷灰石、石英并含有方解石、白云石、重晶石、黄铁矿有机质等。

"The material mix in this belt is most reminiscent of the stuff found in lava flows on Earth," Lisse said. I thought of Mauna Kea material when I first saw the dust composition in this system - it contains raw rock and it's abundant in iron sulfides , which are similar to fool's gold .

& &这个尘埃巨带中的混合物质使人想到地球上熔岩流中发现的物质，&利斯说，&第一次看见这个恒星系统中尘埃的组成成分时，我想起了夏威夷莫纳克亚山上的物质——其中包含原岩，富有含铁硫化物，类似于黄铁矿。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。