助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   hydrothermal convection system 的翻译结果: 查询用时:0.01秒
图标索引 在分类学科中查询
所有学科
地球物理学
更多类别查询

图标索引 历史查询
 

hydrothermal convection system
相关语句
  水热对流系统
     Based on the analysis of geothermal geology and hydrothermal convection system, the hot groundwater is formed from the mixing of the deep circulating high temperature structural fissure water with the shallow circulating ordinary temperature karstic water in the hydrothermal convection system.
     根据地热地质条件及水热对流系统分析 ,地下热水是在水热对流系统中由深循环高温构造裂隙水与浅循环常温岩溶水混合而成。
短句来源
  “hydrothermal convection system”译为未确定词的双语例句
     A STUDY ON THE FOSSIL HYDROTHERMAL CONVECTION SYSTEM IN THE QINDAO COMPLEX BATHOLITH OF GRANITOIDS
     青岛花岗岩类复式岩基的古化石热水体系研究
短句来源
     The coupling of ore-formation/ hydrocarbon-formation is a phenomenon of convection-circulation of in the hydrothermal system. Oil accumulation in the hydrothermal convection system has universal significance, which is the basis for oil prospecting in the submarine area of hotwater activity or hotuabnomality.
     成矿/成烃耦合是成矿热液对流循环的一种现象,对流循环系统成油机制可能具有普遍的意义,是在海底热液活动区或热异常区寻找油气藏的依据。
短句来源
  相似匹配句对
     DISCUSSION ON THE MINERALIZATION SYSTEM RELATED TO HYDROTHERMAL CONVECTION
     浅析热液对流成矿系统
短句来源
     Hydrothermal Eruption
     水热爆炸
短句来源
     antle convection
     地幔对流(讲座)
短句来源
     ON HYDROTHERMAL ROCK
     关于热液岩
短句来源
     ON THE OVERSTABILITY CONVECTION
     论振荡型对流
短句来源
查询“hydrothermal convection system”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  hydrothermal convection system
Alkali olivine basalts from Skye were simultaneously contact metamorphosed by Tertiary gabbro and granite intrusions and altered by the hydrothermal convection system that the plutons induced.
      
A hydrothermal convection system extracted Cu, Zn and Pb from sea-floor basalts during a static phase of evolution of the Chitradurga basin and developed the stratabound ore deposit within the pyroclastics and the stringer ores below.
      
The distributing of ore-forming elements indicates the presence of hydrothermal convection system.
      
Coupling mechanism of mineralization and hydrocarbon-forming in hydrothermal convection system: An example from Longtoushan Sn-p
      
A hydrothermal convection system is present above and around the intrusion.
      


Three kinds of uranium-rich ore have been recognized. They are uranium-rich ore type, ore deposit and orebody. Both deposits No. 201 and No. 361 hosted in grant es are attributed to uranium-rich ore deposit. They formed in very favourable conditions such as abundant uranium source derived from granites and probably partly from depth, deep-seated faults, good semi-closed ore traps, stable regime of structure and hydrothermal convection systems and sufficient redox. It has been found that the principal mechanism...

Three kinds of uranium-rich ore have been recognized. They are uranium-rich ore type, ore deposit and orebody. Both deposits No. 201 and No. 361 hosted in grant es are attributed to uranium-rich ore deposit. They formed in very favourable conditions such as abundant uranium source derived from granites and probably partly from depth, deep-seated faults, good semi-closed ore traps, stable regime of structure and hydrothermal convection systems and sufficient redox. It has been found that the principal mechanism of formation of uranium-rich ore lies in keeping on precipilating uranium minerals with little or small quantity of gangue minerals simultaneously settled down from ore-forming solutions. Experiments show that CO_2 escaping from the UO_2~(2+)-CO_2-H_2S-SiO_4~(4-)system is favourable for pitchblende to deposit separately from SiO_2. It may be explained that CO_2 escaping from the system causes increase of pH, which in turn raises the solubility of SiO_2 and prevents it from further deposition.

区分出3种基本类型富矿:富矿类型、富矿床和富矿体。赋存于花岗岩中的201和361矿床均属于富铀矿床。它们形成于非带有利的条件,如丰富的来自花岗岩和可能部分来自深部的铀源;深断裂;良好的半封闭储矿构造;稳定的构造和热液对流系统以及充分的氧化还原。业已查明,持续保持■矿物沉淀而伴生的脉石矿物不沉淀或少沉淀是形成富铀矿的基本机制。实验表明,二氧化碳从UO_2~(2+)-CO_2-H_2S—SiO_4~(4-)体系中逸出,有利于沥青铀矿与SiO_2分开沉淀.其原理是二氧化碳从体系中逸出引起pH的增高,从而提高了SiO_2的溶解度,阻止其沉淀。

The oxygen isotopic characteristics of the Qindao granitoid batholith indicate that most of the plutons were evidently affected by the interaction between meteoric water and rocks to different extents. There are six fossil hydrothermal convection systems, which occurred at the time of their formation. According to the distributions of the δ18O values of the rocks in the batholith, two types can be distinguished on the basis of the δ18O contours in each of plutons, one is lower in δ18O in the inner part...

The oxygen isotopic characteristics of the Qindao granitoid batholith indicate that most of the plutons were evidently affected by the interaction between meteoric water and rocks to different extents. There are six fossil hydrothermal convection systems, which occurred at the time of their formation. According to the distributions of the δ18O values of the rocks in the batholith, two types can be distinguished on the basis of the δ18O contours in each of plutons, one is lower in δ18O in the inner part but higher in the outer part and the other is higher in the inner part but lower in the outer part. They may be related to the circulating patterns of meteoric waters. The results of modelling calculation for the water-rock interaction systems indicate that the temperatures of these systems range from 250℃ to 400℃, and their W/R ratios vary from 0.08% to 0.3%. Meanwhile, it has been found that degassed plutons are different from non-degassed plutons tor weakly degassed plutons) with respect to their hydrogen and oxygen isotopic compositions.Therefore, δ18O-δD diagrams can be uscd as effective measures to distinguish degassed plutons from non-degassed ones.

对青岛花岗岩类复式岩基的氧同位素研究表明,各个岩体的氧同位素组成明显受水岩相互作用的影响。根据样品采集位置和氧同位素分析结果,可以恢复其中六个古化石热水体系,它们包括两种类型:内高外低型和内低外高型,其形成可能与当时大气降水的循环方式密切相关。近似模拟计算表明,发生水岩作用的温度多在250-400℃之间,水岩比的变化较大(0.08%-0.3%)。研究还发现,曾发生过强烈去气作用的岩体与未经去气(或去气较弱)的岩体相比,其氢氧同位素体系受水岩作用影响结果不一样,使用δ18O-δD图可以对它们进行有效的鉴别。

Erze karst-type gold deposit of Muli, Sichuan, discovered in the western margin of Sichuan-Yunnan metallogenic belt, is tectonically located in the transitional belt between Songpan-Gauze fold system and Yangtze paraplateform.The deposit occurs in the Upper Permian marine carbonate formation. The occurence of orebodies is strictly restricted within the Palaeokarst. The orebodies,which have complex morphology and sharp boundaries with enclosing rocks, are generally in sack-like, with rising and falling roof...

Erze karst-type gold deposit of Muli, Sichuan, discovered in the western margin of Sichuan-Yunnan metallogenic belt, is tectonically located in the transitional belt between Songpan-Gauze fold system and Yangtze paraplateform.The deposit occurs in the Upper Permian marine carbonate formation. The occurence of orebodies is strictly restricted within the Palaeokarst. The orebodies,which have complex morphology and sharp boundaries with enclosing rocks, are generally in sack-like, with rising and falling roof as well as bottom commonly developing "fibrous roots". Siderite is the dominant ore mineral, of which about 90percent of an orebody is composed, with minor quartz and pyrite. Native gold,and, secondly, electrum occur in the siderite bodies unevenly.It shows that the origin of the deposit is associated with a meteoric hydrothermal convection system. Two successive stages of ore-forming process are distinguished: the early one followed by the middle-late one. Temperatures range between 156 and 210℃, and depth is less than 1 km. It is suggested that the carbonate formation is the source bed.The solution is charaterized by alkli, weak in reduction, poor in sulfur, and medium salinity. It is interpreted that during the mineralization the tectonic environment is relatively stable, both gentle uplift and ground water convection are the necessary conditions for the karst development which created the best room for migrating solution and ore deposition; after the gold-siderite ore formation deposit formed. It was strongly suffered from weathering, leading to the widespread development of secondary oxide and the further enrichment of gold.It is a rather unusual and very important gold-deposit type, found only in our country so far. Obviously, it is necessary to study it more in detail.

四川本里耳泽金-菱铁矿建造矿床,赋存于上二叠统海相碳酸盐岩层中,矿化受古岩溶的严格控制,组成矿石的基本矿物为菱铁矿,金不均匀地分布于菱铁矿矿体内。成矿溶液来自加热的循环地下水。成矿过程分为早阶段和中-晚阶段。成矿温度为156-210℃,成矿深度小于1km。成矿物质主要来自地层。成矿热液呈碱性和弱还原性,贫硫,含中等盐度.矿床形成时的地质构造环境较稳定。这是我国仅见的一种特殊金矿类型。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关hydrothermal convection system的内容
在知识搜索中查有关hydrothermal convection system的内容
在数字搜索中查有关hydrothermal convection system的内容
在概念知识元中查有关hydrothermal convection system的内容
在学术趋势中查有关hydrothermal convection system的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社