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矿石矿物组合
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  “矿石矿物组合”译为未确定词的双语例句
    Studies on the exploration minerology show that pyritechalcopyritecinnabar-scheelite dineral assemblage,the grade of pyrite≥50 × 10 ̄(-6),the grade of chalcopyrite≥1 ×10 ̄(-6),and the contents of gold>2 grains can be used as the criteria for gold depositprespecting.
    找矿矿物学研究表明,黄铁矿-黄铜矿-辰砂-白钨矿型矿石矿物组合。 黄铁矿品位≥50×10 ̄(-6)、黄铜矿品位≥1×10 ̄(-6)、自然金含量>2粒等矿物组合标型,可作为该区找金的矿物学标志。
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    Gold ores have a mineral association of pyrite, arsenopyrite, chalcopyrite, tetrahedrite, Au Ag series minerals, quartz and siderite, and element association of Au, Cu, Ag, Pb, Sb, As and Fe.
    矿石矿物组合为黄铁矿、毒砂、黄铜矿、黝铜矿族、 Au- Ag系列矿物、石英和菱铁矿。 其成矿元素组合为 Au- Cu- Ag- Pb- Sb- As- Fe。
短句来源
    This paper study on feature of geologicaK composition and sequence of the ore-bearing strata macro fabrics and microfabrics of the ore wall rock alteration physical and chemical condition in the oreforming process.
    本论文主要研究了陕西旬阳盆地下古生代铅锌矿的矿石矿物组合、矿石的结构构造、围岩蚀变、成矿物理化学条件等矿床地质特征,研究分析了产于下古生代典型的铅锌矿床和与成矿关系密切的热水沉积岩。
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    The ore and mineral assemblage show the characteristics of low-to-moderate temperature, Besides,the ore-forming temperature, pressure and depth also reveal the epithermal feature.
    矿石矿物组合显示中—低温成矿特征,成矿温度、压力及成矿深度也均反映出矿床具低温浅成特征。
短句来源
    Combine the ore frame and structure, according to the ore and mineral combination, the formation that thinks the deposit experiences the metallizing phase of hot liquid , the transformating phase of kinetic metamorphism and hypergene phase three period times.
    根据矿石矿物组合,结合矿石结构构造,认为矿床的形成经历了热液成矿期,动力变质变形期和表生成矿期三个期次。 同位素地球化学研究表明,硫同位素组成表明硫主要来源于岩浆硫,并有少量海水还原硫和生物还原硫参与;
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The Iberian pyrite belt located in Spain and Portugal has a length more than 230 km and a width about 35 km. It is one of the largest metallogenic province of Europe. The wellknown pyrite deposits of this belt occurring in the upper palaeozoic eugeosynclinal volcanics, consist of Aljustrel and Neves-Corvo of Portugal; Tharsis, La Zarza, Rio Tinto ect. of Spain. According to the stratigraphic geology, this belt may be subdivided into three groups(from bottom to top): (1) Slate-quartzite group; (2) Volcanic-...

The Iberian pyrite belt located in Spain and Portugal has a length more than 230 km and a width about 35 km. It is one of the largest metallogenic province of Europe. The wellknown pyrite deposits of this belt occurring in the upper palaeozoic eugeosynclinal volcanics, consist of Aljustrel and Neves-Corvo of Portugal; Tharsis, La Zarza, Rio Tinto ect. of Spain. According to the stratigraphic geology, this belt may be subdivided into three groups(from bottom to top): (1) Slate-quartzite group; (2) Volcanic- sedimentary complex; (3) Slate-greywacke group(culm). During the Hercyian orogeny, the rock sequences were intensely folded and suffered a low-grade metamorphism. The volcanic-sedimentary complex overlies conformably on the slate-quartzite group with a variable thickness from a few tens to 800 meters. The geological age of this group ranges from Touraician to Visean, however, upper Devonian acid volca- nics occur at the Cercal anticline in the southmost part of the pyrite belt. The volcanics are felsic(quartz-keratophyric), mafic(spilitic)and occasionally with some intermedate rocks. The felsic rocks largely outnumber the mafic ones and comprise about 70% of the total outcropping volcanic rocks. They are mainly pyroclastic rocks interbeded with thin layers of volcanic breccias and isolated lava flows. Laterally these volcanics change to tuffs or tuffaceous shales, and interfinger rapidly with sediments. No crater vents or feeder channels have been found. It is noticed that the regions of well-developed coares volcanic facies may be the main volcanic centres, The sulfide deposition took place at or near the top of felsic rocks, and at the end of the volcanic cycles, that is during the waning stage of explosive phase. Most massive sulfide ore deposits commonly in group occurring around the volcanic centres, such as Aljustrel with 6 deposits-Algares, Moinho, S.joao, Feitais, Estacao and Gaviao; and Neves-Corvo with 4 deposits-Meves, Corvo, Graca and Zambujal. The orebodies occur in stratiform lenticular or sheet forms of different size, Gene- rally the structure and texture of the ores are banded or microbanded. Framboidal and colloform texture are often present. Certain orebodies are charterized by the ubiquitous presence of clastic sedimentary structures. The stockwork ores generally occur at the footwall of the stratiform sulfide bodies, as a nekwork of pyrite+cha- lcopyrite+quartz+chalorite hosted in genelally altered volcanic rocks, which may be the channelway of the mineralizing solutions. Most stratiform ores are often closely accompanied by metalliferous and silliceous sediments(jasper and chert). The mineralogy, petrology, mineralization and geological enviroments show that the Iberian pyrite belt and thier sulfide ore deposits bear resemblance to the Qilian volcanic belt, which is an important metallogenic province of massive sulfide ore deposits in northwest China. Based on the evolution of the volcanism, the minera- lization can be mainly assigned in time to three epochs: middle Cambrian, middle (early-middle)Ordovician and late Ordovician. The volcanic rocks are classified into tholeiitic(TH)+calc-alkalic(CA)assemblages(south belt)and tholeiitic(TH)+calc -alkalic(CA)+alkalic(A) assemblages(north belt). The major deposits are found mostly in calc-alkalic terrains. Judging from the relationship of the ore deposits to the facies of volcanic country rocks and to the ancient volcanic center in time and space, the Baiyinchang mine is believed to occur in a near-vent sequence consisting of lava, agglomerate, breccia and tuff. Those rocks are considered to be located proximal to an ancient volcanic vent. 4 deposits-Baiyinchang, Xiaotieshan, Tongchanggou and Sigequan have been found. In Qilianshan there are other types of volcanogenic deposits, for example, Honggou copper deposit that bears more resemblance to the Besshi type deposit of Japan, and the Xitieshan stratiform pb-Zn deposit with ore zones from bottom to top: pyrite+galena+sphalerite ore; barite ore; and chert bed. Both types are absent in Portugal Iberian pyrite belt. As a whole, though the deposits of the Iberian pyrite belt and the Qilian metallogenic belt are all volcanogenic in origin, they are not all identical in ore deposit types.

本文是对伊比利亚黄铁矿带进行专业考察部分内容的报道。文中主要对该带地质,特别是其火山岩岩石和黄铁矿型矿床作了比较详细的介绍。指出该带火山岩为由拉斑质玄武岩和碱性玄武岩与碱性流纹岩组成双峰型火山组合,钙碱质火山岩只有很少分布。它们是分别在不同构造环境下演化形成的,在玄武岩-安山岩-英安岩-流纹岩之间并非连续的分异系列。在岩类上主要以细粒酸性火山碎屑岩为主,少见粗粒火山碎屑岩和熔岩。已知黄铁矿型矿床主要产在细粒酸性凝灰岩内。对带内诸如阿尔朱斯特雷尔、内维斯-科沃等著名矿床的地质环境,产出特征,矿床类型,矿石矿物组合和围岩蚀变等作了论述,并与我国祁连优地槽带的火山岩与火山岩组合,以及如白银厂、小铁山和锡铁山等主要火山成因块状硫化物矿床作了比较。

The ore mineral assemblage of Dayishan wollastonite deposit is complex being composed of wollastonite, diopside, idocrase, K—feldspar, albite, calcite and quartz. To evaluate the ore deposit, it is necessary to determine the content of wallastonitt in the ore. The results from the petrographical study lack of representation. The paper has introduced the method of using the analytical data of chemical composition of the ore in conversion of the wollastonite content.

大义山硅灰石矿床矿石矿物组合复杂,由硅灰石、透辉石、符山石、钾长石、钠长石、方解石、石英等组成。矿床评价需要测定矿石中的硅灰石的含量。岩矿鉴定用薄片测定的结果缺乏代表性。本文介绍了用矿石化学成分分析数据换算成硅灰石含量的具体步骤。

The gold ore localities in the As-Sb-Au mineralized belt of the Dongzhi county-Jing county area,Anhui province are distributed in the Archean-Ordovician strata.

安徽省东至县—泾县As—Sb—Au矿化带中的金矿点分布于从震旦系至奥陶系地层中。不同矿点矿石的矿物组合较为相似,但主要金属矿物黄铁矿、毒砂、辉锑矿含量有明显的差别。 至今有些矿点尚未发现有独立的金矿物,探针分析表明金主要呈次显微金分散于金属矿物中,但不同金属矿物中金的含量并没有明显的差别。

 
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