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变质区
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  metamorphism region
     PROBING ABOUT THE DISTRIBUTION LAW OF COAL SORTS IN CHINA—Coal Metamorphism Region and Coal Metamor phism Region Types
     中国煤种分布规律的探讨——煤变质区和煤变质区的类型
短句来源
     On the basis of what is said above we put forward the concept and types of"Coal Metamorphism Region"and specifically divides the"Coal Metamorphism Region"in China.
     在此基础上提出“煤变质区”的概念和类型,并对我国的“煤变质区”进行了具体的划分。
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  “变质区”译为未确定词的双语例句
     GEOCHEMICAL CHARACTERISTICS AND SIGNIFICANCE OF REE IN THE METAMORPHIC REGION OF EASTERN HEBEI PROVINCE
     冀东变质区稀土元素地球化学特征及意义
短句来源
     COAL METAMORPHISM REGION
     中国的煤变质区
短句来源
     In this paper data from coal petrology show that this region is low-medium metamorphosed.
     根据煤岩学资料,句容坳陷为低—中变质区
短句来源
     The research area could be divided into three coal metamorphic zones according to the metamorphic types and their controlled factors, i.e. the Yuxi hydrothermal metamorphic zone, the Yong Xia-Huaibei magmatic metamorphic zone and the Pingding Shan-Huainan geothermal metamorphic zone.
     根据变质作用类型及其控制因素,划分出三个煤变质分区:豫西气水热液变质区、永夏淮北岩浆热变质区、平顶山淮南深成变质区
短句来源
  相似匹配句对
     COAL METAMORPHISM REGION
     中国的煤变质
短句来源
     GEOCHEMICAL CHARACTERISTICS AND SIGNIFICANCE OF REE IN THE METAMORPHIC REGION OF EASTERN HEBEI PROVINCE
     冀东变质稀土元素地球化学特征及意义
短句来源
     Northwest China.
     西北
短句来源
     metamorphic belt in China.
     变质带。
短句来源
     Culture Region
     文化
短句来源
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Jurong depression in South Jiangsu Province is the only region in China where commercial oil flow has been obtained from carbonate reservoirs with hydrocarbon generated from these carbonates. Therefore, the condition of hydrocarbon generation in this region has raised the attention of petroleum geologists, especially, it is much more interested in the low thermal evolution of the organic matters. In this paper data from coal petrology show that this region is low-medium metamorphosed. Analogue test of the carbonates...

Jurong depression in South Jiangsu Province is the only region in China where commercial oil flow has been obtained from carbonate reservoirs with hydrocarbon generated from these carbonates. Therefore, the condition of hydrocarbon generation in this region has raised the attention of petroleum geologists, especially, it is much more interested in the low thermal evolution of the organic matters. In this paper data from coal petrology show that this region is low-medium metamorphosed. Analogue test of the carbonates was carried out on a thermal cracking chromatography and the stage of evolution of the organic matters has been classified in an actual section. The characteristics of the evolution of kerogens have been studied and correlated to the method of critical depth, indicating large scale hydrocarbon, calculated from time-temperature relationship, to study the characteristic of the thermal evolution in this region, the classification of the stage of thermal evolution has been studied by a comparison of the characteristics of evolution of the organic matters in two types of rocks. Finally the potential of hydrocarbon generation is estimated as (1)Potential for liquid hydrocarbons in Permian and Triassic; (2)Condensate and natural gas for Carboniferous, Devonian and Silurian.

江苏南部句容坳陷,在三迭系上青龙组碳酸盐岩地层中获得了工业油流。因而,本区的生油条件得到石油地质工作者的关注,尤其是这个地区有机质演化程度较低,更引起人们对生油岩研究的兴趣。根据煤岩学资料,句容坳陷为低—中变质区。本文通过热解色谱法,对碳酸盐岩进行了模拟实验,应用时间-温度曲线计算的大量生油临界深度,探讨了有机质热演化成烃特征;并比较了碳酸盐岩与碎屑岩有机质演化特点,划分了热演化阶段;最后,预测了各层系生油岩的潜力,三迭系、二迭系具有产液态烃的潜力,而石炭系、泥盆系和志留系则具有产凝析油和天然气的潜力。

The Precambrian crust of China mainly consists of four metamorphic domains, namely, North China, South China, Northwest China and Southwest China metamorphic domains.High temperature metamorphism (granulite facies) prevailed in the northern of North China domain in the Early and Middle Archean (about 2800 -3000Ma and earlier), and the metamorphism which mainly represents medium temperature (ampbibolite facies) metamorphism widely occurred in whole North China in Late Archean (about 2500Ma), resulting in the...

The Precambrian crust of China mainly consists of four metamorphic domains, namely, North China, South China, Northwest China and Southwest China metamorphic domains.High temperature metamorphism (granulite facies) prevailed in the northern of North China domain in the Early and Middle Archean (about 2800 -3000Ma and earlier), and the metamorphism which mainly represents medium temperature (ampbibolite facies) metamorphism widely occurred in whole North China in Late Archean (about 2500Ma), resulting in the first cratoni-zation of this region. In Early Proterozic, continent crust grew up along the craton margin, which was characterized by regional dynamothermal metamorphism, and aulacogens were formed in some weaker belts inside the solidified craton, which was characterized by regional low temperature dynamic metamorphism (greenschist facies).In Northwest China, regional dynamothermal metamorphism widely occur- red during Early Proterozoic. This was followed by cratonization of Northwest China together with North China and the western part of South China around 1800-1900Ma, thus constituting the initial continent craton of China. Regional low temperature dynamic metamorphism (greenschist facies) took place along some aulacogens in Middle-Late Proterozoic.The western part of South China domain was subjected to regional dyna-mothermal rnetamorphism in Early Proterozoic. This was succeed during Middle -Late Proterozoic by the extensive development of regional low temperature dynamic rnetamorphism (greenschist facies) in South China, the major part of which was then cratonized and combined with North China craton and Northwest China craton to form a single major tectonic domain, the craton of China in Late Proterozoic (about 800Ma).The Southwest China metamorphic domain (including Tibet and a part of West Yunnan as well as the southern part of Qinghai), which probaly underwent extensive, regional dynamothermal metamorphism in Late Proterozoic, formed a part of the basenent of the northern margin of the Gondwana craton.Taking the Precambrean basement of China as a whole, the Archean terrains of China are marked by the wide distribution of medium temperature amphibolite facies and by the rather peristent occurrence of high temperature gianulite facies along the northern border of the North China domain and a few other regions. Regional dynamothermal metamorphism, which varied from greenschist to amphibolite facies (later is dominant), was the result of metamorphism chiefly in the Early Proterozoic epoch. Regional low temperature dynamic metamorphism (greenschist facies) was mostly limited in the aulaco-gens after the continental cratonization. It seems that the aulacogens might have formed in a transitional stage to further consolidation of the continental craton or served as the predecessors to further disintegration of the continental craton.

本文对中国早前寒武纪太古期、早元古期、中晚元古期的变质作用的分布、岩石类型、变质相特点、变质相划分及同位素年龄数据等进行了论述。将中国前寒武纪地壳划分为华北、西北、华南、西南四个变质区、各变质区有自己的不同特点和演化历史。前寒武纪地壳演化是陆壳增长的历史,区域高温和中温变质作用是太古代原始地壳特有的变质作用。

On the basis of the analysis of geological characteristics of source rocks in Qiannan depression, the depression is found to have a good hydrocarbon yielding condition. It is rich in source rocks, the organic matter of which is mainly sapropelic type. It has a good potential of hydrocarbon yielding. According to the degree of maturation of organic matter it can be divided into three regions: low maturation region, medium maturation region and over maturation region. The thermal evolution history of s6urce rocks...

On the basis of the analysis of geological characteristics of source rocks in Qiannan depression, the depression is found to have a good hydrocarbon yielding condition. It is rich in source rocks, the organic matter of which is mainly sapropelic type. It has a good potential of hydrocarbon yielding. According to the degree of maturation of organic matter it can be divided into three regions: low maturation region, medium maturation region and over maturation region. The thermal evolution history of s6urce rocks is discussed, and hydrocarbon evolution and structure evolution are analyzed. And finally, some suggestions are made on the direction of exploration.

本文对黔南拗陷生油岩地化特征进行了分析,认为拗陷生油条件好,生油岩丰富,有机质主要为腐泥型,生烃潜力好。按有机质成熟度大致分为三个区即:低值区、中值区和变质区。并对生油岩热演化史作了论述,对油气演化和构造演化进行了分析。最后,对拗陷进一步的勘探方向提出建议,以供参考。

 
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