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metallogenic hydrothermal solution
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     Development of study on magmatic hydrothermal gold metallogenic system
     岩浆热液系统金矿床研究进展
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     METALLOGENIC DYNAMICS
     成矿动力学刍议
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     ON THE METALLOGENIC SYSTEM
     论成矿系统
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     ON HYDROTHERMAL ROCK
     关于热液岩
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     Hydrothermal Eruption
     水热爆炸
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Based on the study on geology, geochemistry, petrochemistry, organic carbon, rare earth elements, trace elements and C, O, S isotopes, it is believed that Longfengchang sulfur and polymetallic ore deposit belongs to the Hereynian strata-bound marine volcanic hot spring ore deposit. The metallogenic hydrothermal solution is mainly composed of circling seawater and underground water and ore-forming elements substantially derived from the bottom strata. This deposit is strictly limited within the middle-lower...

Based on the study on geology, geochemistry, petrochemistry, organic carbon, rare earth elements, trace elements and C, O, S isotopes, it is believed that Longfengchang sulfur and polymetallic ore deposit belongs to the Hereynian strata-bound marine volcanic hot spring ore deposit. The metallogenic hydrothermal solution is mainly composed of circling seawater and underground water and ore-forming elements substantially derived from the bottom strata. This deposit is strictly limited within the middle-lower Carboniferous Jinshe group (C_2j) and Lindi group (C_1l). It can be taken as an ancient example of marine hot spring ore deposits that occur widespreadly in Red Sea and East Pacific Ridge presently. There are three considerations in looking for this type of deposit, i.e. the tectonic setting, the middle-lower Carboniferous strata and the rock association.

闽西南-粤东海西-印支断陷带是我国华南重要成矿带之一,盛产铁、硫多金属矿床.龙凤场硫多金属矿床是其中较典型的代表,对其成因认识不一.经研究认为应属海底火山热泉沉积-迭加改造复合型矿床.

Located geographically in the northeastern border of Junggar Basin, Uygur Autonomous Region of Xinjiang,and geologically in the juncture of Siberia and Kazakhstan Junggar palaeoplate,the Gznliangzi tin orefield constitutes an important part of the Beileikudouke tin metallogenic zone in East Junggar area.Five kinds of orebodies in the orefield have been found,namely cassiterite quartz vein type,greisen type,tin bearing granaite type,alluvial tin type and pegmatitic vein type.The natural forms of the orebodies...

Located geographically in the northeastern border of Junggar Basin, Uygur Autonomous Region of Xinjiang,and geologically in the juncture of Siberia and Kazakhstan Junggar palaeoplate,the Gznliangzi tin orefield constitutes an important part of the Beileikudouke tin metallogenic zone in East Junggar area.Five kinds of orebodies in the orefield have been found,namely cassiterite quartz vein type,greisen type,tin bearing granaite type,alluvial tin type and pegmatitic vein type.The natural forms of the orebodies vary with the host structures,mineralization positions and metallogenic physicochemical conditions,and comprise simple veins,irregularly shaped veins,beaded veins,lens shaped veins and lenticular veins.According to occurrence types of ores,mineraization process,paragenetic association and formation order of ore minerals,mineralization of the Ganliangzi tin deposit underwent a very complex process and can be divided into three metallogenic stages,viz.,mineralization during late stage of magmatic differentiation and metasomatic alteraton,postmagmatic mineralization and superagene leaching mineralization.Geological,geochemical and geochronological studies show that the formation of the Ganliangzi tin orefield was related to the granitic bodies of the Carboniferous collision orogenic cycle.Metallogenic materials came from the lower crust and the metallogenic hydrothermal solution was a typical magmatic one.

干梁子锡矿田位于准噶尔盆地东北缘,构造上处于西伯利亚和哈萨克斯坦-准噶尔板块的交汇部位,是贝勒库都克锡矿带的重要组成部分。地质地球化学和同位素年代学研究表明,干梁子锡矿田的形成与碰撞造山期花岗岩体的侵位有关,属岩浆热液型锡矿,成矿时代为中石炭世

The north of Derbugan metallogenic provice is located in the north of Inner Mongolia Autonomous Region and the north of Heilongjiang Provice.The principal metallogenetic epoch is J 3-K 1.The metallogenic temperatures vary for different genetic types of deposits.Porphyry-type deposits are formed at high-medium temperature;volcanic hydrothermal type,at medium-low temperature;while "New-type" and epithermal type,at low temperature.The sulfur isotopic values of δ 34S form 8 deposits show a high concentration...

The north of Derbugan metallogenic provice is located in the north of Inner Mongolia Autonomous Region and the north of Heilongjiang Provice.The principal metallogenetic epoch is J 3-K 1.The metallogenic temperatures vary for different genetic types of deposits.Porphyry-type deposits are formed at high-medium temperature;volcanic hydrothermal type,at medium-low temperature;while "New-type" and epithermal type,at low temperature.The sulfur isotopic values of δ 34S form 8 deposits show a high concentration on -6‰ to +6‰.The peak values are around +2‰ to +6‰,indicating that the sulfur in the endogenetic polymetals,gold and silver deposits comes mainly form anatectic magma.The oxygen isotopic values of δ 18O from 6 deposits are -4.5‰ and +23.9‰,showing a close relationship to the magmatic oringin.According to the hydrogen isotope of inclusion, the δ 18O H 2O values range from -12.9‰ to +12.6‰,and the δD is mainly in -89‰ to -105‰.Therefore,the oxygen and hydrogen isotopes of ore-bearing hydrothermal solution reflect the characteristics of magmatic water mixed with miscible fluids from surface precipitation,but the epithermal deposits are characterized by meteoric water.The analysis shows that the metallogenic hydrothermal solution of the deposits is derived from magmatic solution and geothermal brine.

该区有色、贵金属矿床的主成矿期为晚侏罗世—早白垩世 .不同成因类型矿床成矿温度亦有差异 ,“斑岩型”属中高温矿床 ,“火山热液型”属中低温矿床 ,“新类型”金矿床和“浅成低温热液型”金矿应属低温热液矿床 .有色、贵金属矿床中S的来源主要与深源岩浆关系密切 ,成因类型应属广义的“岩浆热液型矿床” ,但有少量S来源于容矿岩或为外生S .成矿热液的主体或组成的总趋势 ,是以岩浆水和大气降水的混合水为特征 ,热源来自中生代火山侵入岩浆 ,而莫尔道嘎金矿点是浅成低温热液型 ,其成矿热液的主体是大气降水 .西吉诺山方铅矿包裹体除了显示出岩浆热液的性质外 ,更多地反映了地下热卤水的介质特征

 
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