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hydrothermal processes
相关语句
  热液过程
     MECHANISMS OF PARAGENESIS AND SEPARATION FOR NOBL B METALS IN HYDROTHERMAL PROCESSES
     热液过程贵金属的共生分离机制
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  “hydrothermal processes”译为未确定词的双语例句
     Results showed that only the LiFePO_4 powders gotten by hydrothermal processes were pure phase, regular sheet with 2 urn, better performance compared with the products prepared by the other methods.
     其中,水热法制备的LiFePO_4为纯相,并且材料颗粒呈规整的片状,粒径分布均匀,都为2μm左右,小倍率下的充放电比容量和循环性能都明显优于其他两种方法所得的LiFePO_4材料。
短句来源
     At present, many methods have been developed to prepare nano-sized Fe3O4 powders, such as co-precipitation, micro-emulsion mediated process, mechanical trituration, hydrothermal processes, sonochemical method, sol-gel method, and so on.
     近年来,各种改良的以及新型的制备纳米Fe3O4的方法也有很多,如:利用油酸等有机相制备单一分散的纳米Fe3O4,升温水解螯合物制备可控大小的纳米Fe3O4,改良的化学共沉淀法等。 但利用微波法制备纳米Fe3O4的报道在国内外尚属首次。
短句来源
     Hydrothermal processes at seafloor spreading centers are of great importance to base metal mineralization, and many of which have been found to be rich in associated Au or Au-Ag:Some localities can be delimited as independent gold orebody.
     海底扩张中心的热液作用对贱金属矿化具有重要意义,而且其中许多富含伴生组分Au或Au—Ag,有的地段可圈出单独的金矿体。
短句来源
     the Ag enrichment in the Lantian Formation was due to the anoxic environment or hydrothermal processes
     蓝田组存在3个富Ag层段,且与Ag多金属矿床中的矿体分布是对应的; Ag的富集受制于缺氧环境或热水作用;
短句来源
     INQURING INTO THE CLASSIFICATION OF GOLD DEPOSITS RELATED TO VOLCANISM SUBVOLCANISM INTRUSION HYDROTHERMAL PROCESSES
     与火山-次火山-侵入-热液作用有关的金矿床分类探讨
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  相似匹配句对
     HYDROTHERMAL FLUIDS AND GEOLOGICAL PROCESSES
     水热流体与地质作用
短句来源
     Studies on Seafloor Hydrothermal Sulfides and Its Ore-forming Processes
     大洋海底热液硫化物组分特征与成矿作用研究
短句来源
     Hydrothermal Eruption
     水热爆炸
短句来源
     Classification of Q-Processes
     Q过程的分类
短句来源
     ON HYDROTHERMAL ROCK
     关于热液岩
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  hydrothermal processes
Fracturing and fluid flow is episodic, because permeability generated during earthquakes is destroyed by hydrothermal processes during the time between earthquakes.
      
A large number of mineral deposits are associated with hydrothermal processes, especially auriferous deposits.
      
In these hydrothermal processes, metal or metal oxides selectively catalyzed a series of hydrothermal reactions from CH2O to amino acids, whereas the further reactions for the formation of oligopeptides proceeded without any catalyst.
      
Porous anatase layer formed on titanium substrate through hydrothermal processes
      
Fe3Al based iron aluminide was tested under supercritical water oxidation (SCWO) conditions to explore its possible use as a reactor material for hydrothermal processes.
      
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Through detailed field and laboratroy studies, it is found that in the Fenglin mining district and its vicinities, Dongxiang, Jiangxi, volcanics occur in the Zishan formation of lower Carboniferous age and in the lower part of the Huanglung limestion formation of Middle Carboniferous age. They comprise dacite, rhyolite lavas, and acid to acid-intermediate tuff, tuff-breccia, and tufaceous sediments, with a total thickness of more than 20 meters. Interbedded with these chiefly submarine volcanic beds and other...

Through detailed field and laboratroy studies, it is found that in the Fenglin mining district and its vicinities, Dongxiang, Jiangxi, volcanics occur in the Zishan formation of lower Carboniferous age and in the lower part of the Huanglung limestion formation of Middle Carboniferous age. They comprise dacite, rhyolite lavas, and acid to acid-intermediate tuff, tuff-breccia, and tufaceous sediments, with a total thickness of more than 20 meters. Interbedded with these chiefly submarine volcanic beds and other marine sediments, are stratiform pyritic copper beds, consisting chiefly of pyrite, melnikovite, siderite, chalcopyrite, and some sphalerite and galena, which attain a total thickness of some 28 meters, and constitute a mediumsized copper mining district. Above the pyritic copper beds, occur siliceous hematite beds of some 13 meters in thickness, succeeded by chert beds and ferruginous flint of 20—30 meters in thickness, The entire succession in by Huanglung limestone. Most of siliceous hematite beds are tungsten-bearing and those considered to be low-grade tungsten ores measuring some 8 meters in thickness. Tungsten occurs mainly as absorbed ions the ferric oxide layers, averaging about 0.3—0.4% WO_3. Only through later recrystallization accompanied with some intrusive apophyses of granodiorite porphyry, does it occur in minute crystals of ferberite and scheelite. Due to their close association with submarine volcanics and marine sediments, these pyritic copper deposits and the tungsten-bearing hematite beds are considered to be formed by submarine exhalant-sedimentary processes. During the yanshanian period there have been some weak reconstitution and superimposition by hydrothermal processes.

通过野外和室内的仔细研究,在枫林矿区及其外围下石炭统梓山组及中上石炭统壶天群下部,发现有广泛的火山岩,包括英安斑岩、流纹岩,及酸性到中性的凝灰岩,凝灰角砾岩及火山碎屑沉积岩等,总厚度20余米。与这些主要海底火山岩层及其他海相沉积物互层的为层状黄铁矿型铜矿层,它主要是由黄铁矿,胶黄铁矿,菱铁矿,黄铜矿,辉铜矿及少量闪锌矿等组成,其总厚度约28米,构成中型的铜矿山。在黄铁矿型铜矿层之上,有厚达13米的硅质赤铁矿层及20—30米厚的硅质岩层,再往上完全复盖以壶天群灰岩。大部分硅质赤铁矿层都是含钨的,并构成低品位的钨矿床,其厚度为8米,钨主要呈离子状态被吸附在赤铁矿层中,只有在受到花岗斑岩影响的地段,经过后期热液作用,才偶尔见到钨铁矿、钨锰矿及白钨矿的细小晶体。总之,由于这些黄铁矿型铜矿床及含钨赤铁矿层与海底火山岩及海相沉积物具有的密切联系,所以它们被认为是由海底火山沉积作用形成的。并在燕山期又受到微弱的热液迭加及改造作用。

Through detailed field and laboratroy studies,it is found that in the Feng- lin mining district and its vicinities,Dongxiang,Jiangxi,volcanics occur in the Zishan formation of lower Carboniferous age and in the lower part of the Huanglung limestion formation of Middle Carboniferous age. They comprise dacite,rhyolite lavas,and acid to acid-intermediate tuff, tuff-breccia,and tufaceous sediments,with a total thickness of more than 20 meters.Interbedded with these chiefly submarine volcanic beds and other marine...

Through detailed field and laboratroy studies,it is found that in the Feng- lin mining district and its vicinities,Dongxiang,Jiangxi,volcanics occur in the Zishan formation of lower Carboniferous age and in the lower part of the Huanglung limestion formation of Middle Carboniferous age. They comprise dacite,rhyolite lavas,and acid to acid-intermediate tuff, tuff-breccia,and tufaceous sediments,with a total thickness of more than 20 meters.Interbedded with these chiefly submarine volcanic beds and other marine sediments,are stratiform pyritic copper beds,consisting chiefly of pyrite,mel- nikovite,siderite,chalcopyrite,and some sphalerite and galena,which attain a total thickness of some 98 meters,and constitute a mediumsized copper mining district.Above the pyritic copper beds,occur siliceous hematite beds of some 13 meters in thickness,succeeded by chert beds and ferruginous flint of 20—30 meters in thickness,The entire succession in by Huanglung limestone.Most of siliceous hematite beds are tungsten-bearing and those considered to be low-grade tungsten ores measuring some 8 meters in thickness.Tungsten occurs mainly as absorbed ions the ferric oxide layers,averaging about 0.3—0.4% WO_3. Only through later recrystallization accompanied with some intrusive apop- hyses of granodiorite porphyry,does it occur in minute crystals of ferberite and scheelite.Due to their close association with submarine volcanics and marine sediments,these pyritic copper deposits and the tungsten-bearing hematite beds are considered to be formed by submarine exhalant-sedimentary processes.During the yanshanian period there have been some weak reconstitution and superimposition by hydrothermal processes.

通过野外和室内的仔细研究,在枫林矿区及其外围下石炭统梓山组及中上石炭统壶天群下部,发现有广泛的火山岩,包括英安斑岩、流纹岩,及酸性到中性的凝灰岩,凝灰角砾岩及火山碎屑沉积岩等,总厚度20余米。与这些主要海底火山岩层及其他海相沉积物互层的为层状黄铁矿型铜矿层,它主要是由黄铁矿,胶黄铁矿,菱铁矿,黄铜矿,辉铜矿及少量闪锌矿等组成,其总厚度约28米,构成中型的铜矿山。在黄铁矿型铜矿层之上,有厚达13米的硅质赤铁矿层及20—30米厚的硅质岩层,再往上完全复盖以壶天群灰岩。大部分硅质赤铁矿层都是含钨的,并构成低品位的钨矿床,其厚度为8米,钨主要呈离子状态被吸附左赤铁矿层中,只有在受到花岗斑岩影响的地段,经过后期热液作用,才偶尔见到钨铁矿、钨锰矿及白钨矿的细小晶体。总之,由于这些黄铁矿型铜矿床及含钨赤铁矿层与海底火山岩及海相沉积物具有的密切联系,所以它们被认为是由海底火山沉积作用形成的。并在燕山期又受到微弱的热液迭加及改造作用。

The Gaotaigou boron deposit occurred in the metamorphic rocks of the Xinkaihe Formation of the Proterozoic Jian Group, and its occurrence is conformable with the strata. Ore-bodies lay in serpentinite and magnesite—serpentinite of the middle and upper part of ore—bearing beds.There is a gradual transition between the ore-bodies and ore—bearing beds, and iss directly proportional to each other in thickness. Boron—bearing minerals are chiefly boromagnesite and ludwigite. Residua of metamorphic minerals and hydrothermal...

The Gaotaigou boron deposit occurred in the metamorphic rocks of the Xinkaihe Formation of the Proterozoic Jian Group, and its occurrence is conformable with the strata. Ore-bodies lay in serpentinite and magnesite—serpentinite of the middle and upper part of ore—bearing beds.There is a gradual transition between the ore-bodies and ore—bearing beds, and iss directly proportional to each other in thickness. Boron—bearing minerals are chiefly boromagnesite and ludwigite. Residua of metamorphic minerals and hydrothermal mineral assemblage are also observed. All the fractures and veins crosscut the ore-bodies and are later than metallogensis. Boron is derived from sediments, and its concentration coefficient is 3—47 in the metamorphic rock, but there is a higher degree of concentration in magnesian marble and serpentinite, and the concentration coefficient is up to 33—1033. The content of B_2O_3 increases with that of MgO. This Boron deposit pertains to a sedimentary—metamorphic one underwent a regional migmatization and hydrothermal process.

在六十年代初期,对吉南地区硼矿成因曾有不同认识,当时流行着内生硼镁石矽卡岩及混合岩化等成因观点。吉林局则认为是沉积变质成矿,并依此观点指导找矿,取得成效。一九六四年及一九六六年编制的“吉林省集安县高台沟硼矿地质勘探报告”中指出:硼矿的成因是沉积变质,后经混合岩化作用及其热液迭加改造而成矿。地层中硼元素的来源可能与海底火山喷发有关。一九七一年《吉林地质》第3期(当时系内部刊物)上撰文发表,文中列举了大量实际资料,论证了沉积变质成矿的特点。为向广大读者提供硼矿成因材料,现把一九七一年发表的文章重新刊出。

 
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