脉岩
- 与 脉岩 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In contrast, the ε(322 Ma) values of five woiframite separates from the topaz-quartz vein ores range from -4.16 to -8.05, much lower than values of the greisen massive ore.
云英岩型钨矿石的形成作用与亏损地幔源岩浆活动有关,而黄玉-石英脉型钨矿石则很可能是壳源岩浆活动的产物。
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The WO3 content of the W-bearing topaz-quartz veins and that of greisen blocks range from 1.23% to 1.86%(1.55% on average) and 0.26% to 0.54%(0.40% on average) respectively.
研究表明,红尖兵山钨矿床的矿化类型大体可划分为云英岩型和黄玉-石英脉型。
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In the world, the type of industrial cobalt deposits chiefly includes copper-cobalt sulphide deposits, cobaltiferous copper-nickel sulphide deposits, cobaltiferous laterite nickel deposits, multi-metal nervation cobaltiferous deposits, cobaltiferous skarns ferreous deposits, cobaltiferous iron pyrites deposits, cobaltiferous lead-zinc deposits.
世界上具有工业意义的含钴矿床主要有:硫化铜钴矿床、含钴硫化铜镍矿床、含钴红土型镍矿床、多金属脉状含钴矿床、含钴矽卡岩铁矿床、含钴黄铁矿矿床和含钴铅锌矿床。
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The kimberlite has the intensive magnetism, low resistivity, and high content of Cr、Ni and Nb. Its geophysical and geochemical prospecting anomaly over the earth's surface are mostly shaped in ellipse and ribbon, which is paragenetic with fracture structure.
金伯利岩的分布严格受断裂构造控制,矿体呈管状、脉状,具有成群、结带分布的特征;它具有磁性强、电阻率低、微量元素Cr、Ni 、Nb含量高的特征。
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1:250000 geological mapping has further revealed the mysteries of the tectonics of the Qinghai-Tibet Plateau. The Altun Mountains are not of the Tarim massif, but a part of the Kunlun-Qilian-Qinling orogenic system; the Altun fault is a large transform fault; the Muztag-Maqên suture zone and Jinshajiang suture zone are both Variscan ones; the Songpan-Garzê area in the Triassic was a huge turbidite basin on the southern margin of Laurasia; the Gangdise belt underwent the important Indosinian orogenic movement; an ocean basin that persisted from the Paleozoic to Triassic did not exist, i.e. the so-called Paleo-Tethys or permanent Tethys was not in existence in the Qinghai-Tibet Plateau. In the Paleozoic, most parts of China, including the Sino-Korean, Yangtze and Tarim massifs and the Qinghai-Tibet Plateau, were located in south of the main ocean basin—the Central Asian-Mongolian sea way—of the Paleo-Asia ocean, belonging to the northern margin of Gondwana. The Yarlung Zangbo and Bangong -Nujiang belts were twins in the Tethyan Ocean, which began to develop into two ocean rift belts in the Triassic. The Tethyan Ocean with the Yarlung Zangbo belt as the main ocean basin belt began to be subducted in the Late Triassic and experienced a process of pulsatory plate convergence orogeny including the Indosinian, Yanshanian and Himalayan stages.
1:25万地质填图进一步揭开了青藏高原地区大地构造的奥秘:阿尔金山是昆仑,祁连-秦岭造山系的一部分;阿尔金断裂确是一条大型转换断层;木孜塔格-玛沁缝合带和金沙江缝合带均是华力西缝合带;松潘甘孜三叠系沉积盆地是劳亚大陆南部边缘的浊积岩盆地;冈底斯带曾经历了重要的印支造山运动;不存在从古生代延续到三叠纪的大洋盆地,即不存在所谓古特提斯或永久特提斯;古生代时期,在青藏高原地区亦不存在具古生物,古地理分隔意义的大洋盆地,当时,包括中朝,扬子,塔里木以及青藏高原地区在内的中国大部分均位于古亚洲洋主洋盆——中亚-蒙古带之南,属冈瓦纳大陆结构复杂的北部边缘;雅鲁藏布江和班公湖-怒江带是特提斯洋中的孪生姊妹,它们均是从三叠纪起就发展成大洋裂谷带的;以雅鲁藏布江带为主洋盆带的特提斯洋,从三叠纪晚期开始消减,经历了印支,燕山,喜马拉雅3个阶段脉动式板块汇聚造山过程。
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The beryls were studied in this paper by using the electron microprobe analyses and back scattered-electron imaging.
利用电子探针和背散射电子成像技术对该岩脉中绿柱石进行了较系统分析。
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This simplification does not place our analysis in jeopardy of being oversimplified, at least in terms of the plane shape of the dike complex.
这种简化不会使我们的分析处于过于简化的危险,至少采用岩脉组合的平面形状不会这样。
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The Nanping granitic pegmatite is one of the most important rare-metal deposits in China. In this pegmatite field the No. 31 granitic pegmatite is the most highly evolved and well mineralized one, where beryl is the most important beryllium mineral.
福建南平花岗伟晶岩是中国重要的稀有金属花岗伟晶岩之一,其中31号脉是分异程度最高、稀有金属成矿作用最重要的岩脉,绿柱石是其中最主要的铍矿物。
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Study on the lithology and petrology (fine-grained cold-quenching ring of the enclaves, the reverse vein, the complex enclaves, the plagioclase phenocryst from both host rock and enclaves that is consist on the crystal form, composition and light, et al.), petrogeochemistry (Y/Nb=2.77~6.82, La/Nb=0.91~4.33, Ba/Nb=0.13~37.86, et al.), Sr and Nd isotope most ISr between 0.7031~0.7041,εNd(t=5.2~7.1 and LA-ICP-MS zircon U-Pb dating (the host rock age is 311±12Ma, and enclaves is 306±7Ma), believe the Huangyangshan pluton is crust-mantle hybrid genesis.
通过岩石学和岩相学(包体细粒淬冷边,反向脉,复合包体以及寄主岩石和包体中斜长石斑晶在形态、成分、光性上的一致性等),岩石地球化学(Y/Nb=2.77~6.82,La/Nb=0.91~4.33,Ba/Nb=0.13~37.86等),Sr和Nd同位素(ISr多数在0.7031~0.7041,εNd在5.2~7.1之间)以及LA-ICP-MS锆石U-Pb测年(寄主岩石为311±12Ma,包体为306±7Ma)综合研究认为黄羊山花岗岩是壳-幔源岩浆混合成因的。
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The phyllite, gold-bearing untramylonite and gold-bearing quartz-vein of PEG geochemistry partition mode are Pt-Pd type.
铂族元素地球化学研究表明,千枚岩、超糜棱岩、含金石英脉铂族元素CI球粒陨石标准化分配模式属于Pt-Pd型。
- 推荐网络例句
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I can not make it blossom and suits me
我不能让树为我开花
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When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.
当温度高于 80 °C 左右时,滚道或滚动元件褪色是很常见的特征。
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The lawyer's case blew up because he had no proof.
律师的辩护失败,因为他没有证据。