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石英-正长岩
相关语句
  quartz syenite
     IRON CHEVKINITE IN QUARTZ SYENITE FROM A CERTAIN DISTRICT IN HUBEI
     湖北某地石英-正长岩中的铁硅钛铈矿
短句来源
     A STUDY OF ZONAL STRUCTURE ZIRCON IN QUARTZ SYENITE FROM ZAOYANG COUNTY HUBEI PROVINCE
     湖北枣阳石英-正长岩中的环带状锆石研究
短句来源
     Zircon in quartz syenite from Zaoyang County, Hubei Province, is characterized in largecrystals with zonal structure. Crystal size 10-50mm, short prism with bipyramids, length/widthratio 1.7-2.1. About 600 interbanded greyish white and black brown layerings are recognized in onecrystal.
     湖北省枣阳县石英-正长岩中的锆石,晶体大,粒径达10-50mm。 整个晶体从中心向边缘由约600条灰白色与黑褐色相间的环带组成。
短句来源
  相似匹配句对
     coarse to fine-grained quartz-syenite;
     (3)粗-细粒石英正长岩;
短句来源
     porphyritic fine-grained quartz-syenite.
     (4)似斑状细粒石英正长岩
短句来源
     IRON CHEVKINITE IN QUARTZ SYENITE FROM A CERTAIN DISTRICT IN HUBEI
     湖北某地石英-正长岩中的铁硅钛铈矿
短句来源
     THE CHARACTERISTICS OF THE BIOTITE OF ANLU QUARTZ-SYENITE BELT AND THEIR PETROLOGICAL SIGNIFICANCE
     安庐石英正长岩带的黑云母及其岩石学意义
短句来源
     A STUDY OF ZONAL STRUCTURE ZIRCON IN QUARTZ SYENITE FROM ZAOYANG COUNTY HUBEI PROVINCE
     湖北枣阳石英-正长岩中的环带状锆石研究
短句来源
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  quartz syenite
Their localization is controlled by fault zones of various orders, folds, and stocks and dikes of the Early Mesozoic subalkali quartz syenite and syenite porphyry.
      
Composition and genesis of inner-contact syenites of the Khasurta quartz syenite-monzonite massif, western Transbaikalia
      
The paper reports data on the geological structure, mineralogy, and geochemistry of inner-contact syenites of the Late Paleozoic Khasurta quartz syenite-monzonite massif in western Transbaikalia.
      
Trace element geochemistry of zircons indicates that zircons in both gabbro and quartz syenite have two-generations.
      
Many light rare earth deposits, such as Maoniuping, Dalucao, Panzhihua deposits, are collectively distributed in Panxi rift of Sichuan Province, China, and closely associated with the aegirine quartz syenite-carbonatite complex.
      
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The uranium deposit No. 8411 is temporarily and spatially directly associated with the typical syntectic type quartz-syenite. The uranium deposit occurs in the Jurassic arkose sandstone being located in the exocontact zone of quartz-syenite intrusive body. The intrusive body is exposed in an area about 90 km~2. It may be divided into four intrusive stages according to the time of intrusion: biotitquartz-syenite; orthophyre; coarse to fine-grained quartz-syenite; porphyritic fine-grained quartz-syenite. Mineral...

The uranium deposit No. 8411 is temporarily and spatially directly associated with the typical syntectic type quartz-syenite. The uranium deposit occurs in the Jurassic arkose sandstone being located in the exocontact zone of quartz-syenite intrusive body. The intrusive body is exposed in an area about 90 km~2. It may be divided into four intrusive stages according to the time of intrusion: biotitquartz-syenite; orthophyre; coarse to fine-grained quartz-syenite; porphyritic fine-grained quartz-syenite. Mineral composition of the ore is relatively complicated. Main uranium minerals include pitchblende, uranium black, metatorbernite, autunite, other minerals are various sulfides of Fe, Cu, Pb, Zn, Ni, Co, magnetite hematite, chalcedony and calcite, etc. The intrusive rock has moderate strontium initial ratio (~(87)Sr/~(86)Sr=0.707)characteristic of syntectic type granitoids. The time interval between the ages of host rock (130 m. y.) and ore deposition (108 m. y.) is small (<22 m. y.). Oxygen isotope study of the ore shows that the hydrothermal fluid responsible for the formation of the deposit is composed of magmatic water and meteoric water. δ~(34)S_(FeS2)=-2.3‰—+20.5‰(40 samples), δ~(34)S_(av).=+10.44%. These data indicate a mixed feature of sulfur in the hydrothermal fluid coming from the upper mantle and the crust. Results of gas-fluid inclusion study and thermometric calculation yield a temperature of the hydrothermal fluid about 100—300℃. The pitchblende has been formed between 170—200℃. The uranium and other metallic material of this deposit have been mainly differentiated from the quartz-syenite magma. The others have been drawn from the host rock. It is a meso-epithermal uranium deposit and has composite genesis. The mechanism of formation of uranium deposit No. 8411 is remarkably different from that of uranium deposits related to transformation type granitoids in South China.

8411铀矿床在时间上和空间上,与某典型的同熔型石英正长岩体直接伴生。该矿床赋存于石英正长岩体外接触带侏罗系长石石英砂岩中。岩体出露面积约90Km~2,按侵入先后分为:(1)黑云母石英正长岩;(2)正长斑岩;(3)粗-细粒石英正长岩;(4)似斑状细粒石英正长岩。矿石的矿物组成较复杂,主要铀矿物为沥青铀矿、铀黑、准铜铀云母及钙铀云母。其他矿物有Fe、Cu、Pb、Zn、Ni、Co的硫化物,及磁铁矿、赤铁矿、微晶石英、方解石等。石英正长岩体的锶同位素初始比值中等(~(87)Sr/~(86)Sr=0.707),具同熔型花岗岩类的特征。该矿床的矿岩时差小(<22百万年)。矿石的氧同位素研究结果表明,成矿热液中的水由岩浆水和大气降水组成。矿石中40个黄铁矿δ~(34)S=-2.3‰-+20.5‰,其平均值δ~(34)S=+10.44‰,这表明成矿热液中的硫具有深部硫和地壳硫的混合特征。矿石中气-液包裹体测温及地温计计算得出该矿床矿化热液温度约为100—300℃,沥青铀矿形成温度约170—200℃。该矿床成矿物质主要来自石...

8411铀矿床在时间上和空间上,与某典型的同熔型石英正长岩体直接伴生。该矿床赋存于石英正长岩体外接触带侏罗系长石石英砂岩中。岩体出露面积约90Km~2,按侵入先后分为:(1)黑云母石英正长岩;(2)正长斑岩;(3)粗-细粒石英正长岩;(4)似斑状细粒石英正长岩。矿石的矿物组成较复杂,主要铀矿物为沥青铀矿、铀黑、准铜铀云母及钙铀云母。其他矿物有Fe、Cu、Pb、Zn、Ni、Co的硫化物,及磁铁矿、赤铁矿、微晶石英、方解石等。石英正长岩体的锶同位素初始比值中等(~(87)Sr/~(86)Sr=0.707),具同熔型花岗岩类的特征。该矿床的矿岩时差小(<22百万年)。矿石的氧同位素研究结果表明,成矿热液中的水由岩浆水和大气降水组成。矿石中40个黄铁矿δ~(34)S=-2.3‰-+20.5‰,其平均值δ~(34)S=+10.44‰,这表明成矿热液中的硫具有深部硫和地壳硫的混合特征。矿石中气-液包裹体测温及地温计计算得出该矿床矿化热液温度约为100—300℃,沥青铀矿形成温度约170—200℃。该矿床成矿物质主要来自石英正长岩岩浆,部分成矿物质则汲自成矿围岩,它属中-低温复成因铀矿床,其成矿机理与华南改造型花岗岩有关的许多铀矿床有明显的差异。 8411铀矿床在空间上和时间上,与某典型的同熔型石英正长岩侵入体有关,是一个以岩浆期后热液作用为主的复合成因铀矿床。剖析该矿床的成因,对于研究华南两类不同花岗岩型铀矿床特征,具有一定意义。

The " Miaoxi pattern" granites,including late Yanshanian( 127-92Ma ) Miaoxi, Yaocun and Huangong kaligranite and quartz-syenite batholithos, are located in Yinjahui-Xuanchen synclinore. The rocks consist mainly of perthite, quartz, ferro-biotite, magnetite, sphene, apatite zircon, topaz, fluorite and moissanite, as well as a few hypothermal quartzes, with higher K, Na, Al, Ga, Rb, Zr, Nb, Y, REE, F, Cl and lower Ca and Mg contents. In the rock the contents of REE are between 221-301ppm, (La/Yb)N 4.79-6.75, (Ga/Yb)N...

The " Miaoxi pattern" granites,including late Yanshanian( 127-92Ma ) Miaoxi, Yaocun and Huangong kaligranite and quartz-syenite batholithos, are located in Yinjahui-Xuanchen synclinore. The rocks consist mainly of perthite, quartz, ferro-biotite, magnetite, sphene, apatite zircon, topaz, fluorite and moissanite, as well as a few hypothermal quartzes, with higher K, Na, Al, Ga, Rb, Zr, Nb, Y, REE, F, Cl and lower Ca and Mg contents. In the rock the contents of REE are between 221-301ppm, (La/Yb)N 4.79-6.75, (Ga/Yb)N 0.51-0.70, (La/Sm)N 3.28-5.68,δCe 0.97-1.05 and δEu 0.42-0.57.The rock fo mation is characterized by high alkaline, anorogenic and anhydrous environment, belonging to the A-type granites named by W.J. Collines.

“庙西式”花岗岩系指分布在皖南殷家汇、宣城复问斜中的庙西、姚村、花园巩诸岩体。形成于燕山晚期(127—92Ma),呈岩基产出。岩石类型为钾长花岗岩、石英正长岩。主要矿物组合为条纹长石、更长石、石英(均有少量高温石英)、富铁黑云母、磁铁矿、榍石、磷灰石、锆石、碳硅石、钍石等。诸岩体富钾钠,贫钙镁,铝过饱和,镓、铷、锆、铌、钇、重稀土及氟氯等成分富集,是造山期后、在较高温度、较大氧逸度和少水的情况下成岩的,具有A型花岗岩的特征,可与澳大利亚加博、穆布拉A型花岗岩类比。

The quartz-syenite belt, extending from the city of Anqin to Lujiang county in Anhui province, includes Huangmeijian, Chengshan and Dalongshan igneous bodies. By detailed research on its biotite, it has been concluded that the initial magma substance came from the depth, and the belt formed because of the lack of water and higher fO_2. The trends of magma evolution in the parts of the belt are different, as a result of differences among emplacement environments. The poor content of Fe in residual magma of Huagmeijian...

The quartz-syenite belt, extending from the city of Anqin to Lujiang county in Anhui province, includes Huangmeijian, Chengshan and Dalongshan igneous bodies. By detailed research on its biotite, it has been concluded that the initial magma substance came from the depth, and the belt formed because of the lack of water and higher fO_2. The trends of magma evolution in the parts of the belt are different, as a result of differences among emplacement environments. The poor content of Fe in residual magma of Huagmeijian body favored mineralization of W, Sn, Nb and Ta; the rich content in Fe in residual magma of Dalongshan favored Fe mineralization.

安庆庐江地区发育一条石英正长岩带,包括黄梅尖岩体、大龙山岩体和城山岩体,通过对岩带的黑云母详细研究,查明岩带的初始成岩物质来源较深,岩带形成时岩浆相对贫水,而氧逸度却较高。由于岩带侵位地质环境的差异等因素,导致岩带不同部位的岩浆演化趋势不同。其中黄梅尖岩体残余岩浆贫铁,有利于W、Sn,Nb、Ta矿化,而大龙山岩体残余岩浆富铁,有利于铁矿化。

 
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