pyrite ['pairait]

pyrite的基本解释

n.

黄铁矿

pyrite所属的单词分类

Mineral & Rock / 矿物与岩石 [120]

yeatmanite  ·  xalostocite  ·  wairakite  ·  pyroclastic flow  ·  petrified wood  ·  metamorphic rock  ·  Druze  ·  tiger's eye  ·  rose quartz  ·  rock cycle

与pyrite相关的网络例句 [注：此内容来源于网络，仅供参考]

In the space, along with increased distance from the main ore-controlling structures, the frequency of P type of pyrite and their thermoelectricity also decreased gradually. Within one lode, from the upper to the lower parts of an ore body, the vertical change of pyrite in thermoelectricity as the follows:① when the ore body is stable, that is when the ore body is uniformly and continuously mineralized, the Dp andαvalues keep increased from shallow to deeper parts;② when an ore body is discontinuously mineralized, the Dp andαvalues have a wavy increasing tendency from the shallow to the deeper;③ when the deeper part of an ore body contains abundant, Co and Ni high mafic dykes, the Dp andαvalues of pyrite decreased from the shallow to the deeper parts of an ore body, that is, an reversed zoning of pyrite thermoelectricity occurs for pyrite in this situation contain more Ni and Co and belongs to N type.④ For the deposits hosted in the Archean metamorphic rocks, because all of the pyrite in this case is N-type, the vertical change of pyrite is not featured by the transition of pyrite type, but by the increased values of Vnp and α from the shallow to deeper parts of an ore body.

在空间域上，水平分带规律为：随远离主干断裂，矿脉中P型的出现频率逐渐降低或热电系数值逐渐变小；在同一条矿脉中，这是由于矿化不均匀性及脉岩的影响，由矿体的上部到下部，它的垂向变化特征可以有如下几种变化形式：①由矿体的浅部到深部，黄铁矿的Dp值、或α值呈稳定升高的趋势时，矿体往往表现为矿化均匀，连续性好、延伸稳定；②由浅部到深部，黄铁矿的Dp值、α值呈波状变化，但总体又具有增大的趋势时，所在的矿体连续性差；③当矿脉的下部发育有大量的基性脉岩时，由于基性脉岩中常含有较高的Co、Ni，使其中黄铁矿的Co、Ni含量较高而呈N型导电，由矿体的上部到下部，黄铁矿的Dp值、α值呈减少的趋势，而造成黄铁矿热电性特征的逆向分带，④产于太古代变质岩中的中深脉状金矿，由于其中的黄铁矿均为N型导电，所以垂向变化规律并不表现为导型的改变，只是Vnp值或α值从矿体的上部到下部由小变大。

At present,the rate laws and reaction mechanisms of pyrite oxidation,pyrite and chalcopyrite formation,uraninite and magnetite dissolution in aqueous solutions are mainly studied,and it is discovered that (1)oxidation rate of pyrite controlled by surface reaction assume fractional dependence on Fe3+ and O2 molalities in acid solutions;(2)Pyrite cannot nucleate directly from solutions below 300 ℃,it can only form initially through sulfidation of a FeS precursor. The rate equation of reaction between FeS and H2S to form pyrite is of the second order;(3)Chalcopyrite is formed by reactions of pyrrhotite or pyrite with Cu2+,the former proceeds via a series of mediate metastable phases of Cu-Fe sulfide,whereas the rate equation of the latter is apparently of the first order which is controlled by surface reaction;(4)The nonlinear behavior of magnetite dissolution at acid pH can be represented by a shrinking core model coupling with surface reaction and diffusion transport.

目前主要研究了水溶液中黄铁矿氧化、黄铁矿和黄铜矿形成、晶质铀矿和磁铁矿溶解的速率定律和反应机理，发现：(1)酸性溶液中黄铁矿的氧化速率对Fe3+和O2浓度呈分数依赖并受表面反应的控制；(2)低于300 ℃时黄铁矿不能从溶液中直接成核，而需初始地通过FeS先驱物的硫化生成，FeS与H2S反应形成黄铁矿的速率方程为二级；(3)磁黄铁矿或黄铁矿与Cu2+反应均可形成黄铜矿，前者经历了一系列准稳的Cu-Fe硫化物的中间物，后者的速率方程为表观一级并受表面反应的控制；(4)酸性pH时磁铁矿的非线性溶解行为可采用表面反应扩散输运耦合的收缩核模型来描述。

Especially, the typically stromatolitic pyrite, micro-strawberric pyrite, microgranular pyrite and rarely helical and silky pyrite have roughly been explained with the biogenic agency.

特别对较典型的叠层石黄铁矿、显微莓球黄铁矿、黄铁矿的微小球粒及较罕见的螺旋状和丝状黄铁矿用生物成因进行了初步解释。

与pyrite相关的网络解释 [注：此内容来源于网络，仅供参考]

pyrite：黄铁矿

黄铁矿(Pyrite)是一种普通的矿物质,存在于车库和地下室混凝土底板以下的回填材料之中. 黄铁矿遇潮气会氧化成石膏状晶体,引起碎石等回填材料膨胀或将混凝土底板胀裂. 其后果是:在混凝土底板上和建在其上的室内构件上有隆起、裂缝.

pyrite：硫化铁

116.美空军研究实验室(AFRL)开发太阳能电池技术217.二硫化铁(Pyrite)薄膜太阳能电池材料的制备及展望

pyrite：二硫化铁

116.美空军研究实验室(AFRL)开发太阳能电池技术217.二硫化铁(Pyrite)薄膜太阳能电池材料的制备及展望

pyrite：自然铜

Purslane Speedwell Herb 仙桃草 | Pyrite 自然铜 | Pyrolusite 无名异

pyrite kiln：黄铁矿窑

pyrite kiln 黄铁矿窑 | remote adjustment 遥控, 远程调整 | live line work 带电工作