1) meteorite mineral
陨石矿物
1.
Shock melting and fractional crystallization of meteorite minerals under dynamic high-pressures and their geochemical significance
动态高压下陨石矿物的冲击熔融和分离结晶及其地球化学意义
2) siderite
[英]['sidərait] [美]['sɪdə,raɪt]
菱铁矿;陨铁;蓝石英,石铁陨星
3) Meteorite
[英]['mi:tiəraɪt] [美]['mitɪə'raɪt]
陨石
1.
On TEM Method for Studying Ringwoodite with High-pressure Phase Minerals in Naturally Shocked Meteorites;
陨石中高压相矿物多形态林伍德石的电子显微研究
2.
Chemical separation and purification of cosmogenic radionuclides ~(10)Be and ~(26)Al in meteorites;
陨石中宇宙成因核素~(10)Be和~(26)Al的化学分离纯化
4) meteorites
[英]['mi:tiər,ait] [美]['mitɪər,aɪt]
陨石
1.
Petrography and mineral chemistry of 100 meteorites collected from the Grove Mountains,Antarctica,were studied and their chemical-petrographic types were assigned.
本文主要报道了南极格罗夫山新回收的100块陨石的岩石学和矿物化学特征。
2.
On the basis of the distribution area, density as well as the diversity of the petrographic, mineralogic and chemical characteristics, we regard the Escarpment zone in the Grove Mountains as a new meteorites enrichment area.
中国南极考察队于 1 998～ 2 0 0 0年两次对东南极格罗夫山地区进行了陨石回收工作 ,共回收 32块陨石 ,根据 1 5、1 6次队回收的陨石的分布范围、密度和岩石化学类型的差异性 ,初步确定格罗夫山阵风悬崖一带是一个新的陨石富集区。
3.
Thermoluminescence studies of meteorites suggest that the level of natural TL in meteorites is determined by competition between build up,due to exposure to cosmic radiation,and thermal decay.
陨石热释光研究揭示了陨石中自然ＴＬ值取决于陨石暴露在宇宙空间时的宇宙射线辐照和自身热衰变之间的平衡。
5) micrometeorite
[,maikrəu'mi:tiərait]
微陨石;陨尘
6) ore mineral
矿石矿物
1.
Scanning electron microscopy and energy dispersive spectrum analysis of the ore minerals from the Liwu copper deposit,Jiulong,Sichuan
四川九龙里伍铜矿主要矿石矿物扫描电镜能谱分析
2.
In this paper, the types and distribution of ores and the stages of mineralization are summarized, the composition and evolution of different types of ore minerals in time and three-dimensional space are emphatically studied and, on such a basis, the influence of the physical chemistry of fluids upon the composition is pointed out.
文章总结和划分了矿床的矿石类型、矿化阶段及其在空间上的分布 ;对不同阶段、不同地段和不同类型的黄铁矿类、毒砂、黄铜矿、闪锌矿、方铅矿和锡石等 6种主要矿石矿物进行了电子探针微区分析。
3.
This paper discusses the possible relationship between ore mineral′s magnetic characteristic and gold enrichment.
作者认为矿石矿物的磁性特征与金富集可能有成因上的联系 :(1)黄铁矿与磁黄铁矿、黄铜矿和方铅矿等相比 ,以极微弱的反铁磁性 ,不易受微弱外电和磁场的影响 ,在电性和晶体结构方面更具稳定性等特征 ,且易吸附纳米级金粒 ;(2 )压力可使矿石矿物出现压磁效应 ,矿石矿物磁性矢量产生各向异性 ,金粒易在磁矢量加大方向发生富集 ;(3)颗粒细小、受多次压力作用、温度接近居里点等因素都能使矿石矿物的磁性加强 ,形成金富集的有利条件。
补充资料：菱铁矿
| 菱铁矿 siderite 铁的碳酸盐矿物，成分为Fe[CO3]。经常有锰、镁等替代铁，形成锰菱铁矿、镁菱铁矿等变种。三方晶系，晶体呈菱面体，晶面往往弯曲；集合体呈粒状、块状或结核状。显晶质球粒状的称球菱铁矿；隐晶质凝胶状的称胶菱铁矿。菱铁矿一般呈灰白或黄白色，风化后呈褐色、褐黑色。莫氏硬度4，比重3.7～4.0，随成分中Mn和Mg含量的升高而降低。热液成因的菱铁矿常见于金属矿脉中；沉积成因的菱铁矿常见于页岩层、粘土层和煤层中。在氧化带易水解成褐铁矿，形成铁帽。菱铁矿大量聚集而且硫、磷等有害杂质的含量小于0.04％时，可作为铁矿石开采。
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说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条