查询词典 volcanic
- 与 volcanic 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Based on the previous study, teleseismic waveform data, observed in the West Yunnan and volcanic area, is gathered to study their S wave velocity structures by the receiver function. Underneath structure features are shown in those areas, and their geodynamical implication is also discussed. The receiver function approach and nonlinear inversion proceedings are reviewed in this paper; the basic theory of the neighborhood algorithm is also analyzed.
本文在前人工作的基础上,收集了滇西地区和五大连池以及腾冲火山区远震波形数据,开展了接收函数非线性反演研究,揭示出滇西地区以及五大连池和腾冲火山区深部结构方面的一些重要地学特征,并探讨了相关的地球动力学问题。
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Tectonism in geosynclinal, platform and diwa stages, rifting, plate tectonics, magmatic intrusion, volcanic activity, hydrothermalism, metamorphism, hot deposition and related mineralization are manifestations of large-sdaled korizontal and vertical of HACONS fluids in the asthenosphere.
地壳中槽、台、裂谷、地洼、板块构造、岩浆侵入、火山、热液、变质、热沉积以及有关的成矿作用乃是软流层中幔汁大规模水平和垂直活动的种种表现方式。
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The minerogenetic geotectonic background of typical copper deposits is proved according to the geotectonic evolution,genetic type of deposit, the genetic type of metallogenic mother rock and metallogenic epoch, and the results show: Gongpoquan volcanic rock type copper deposit formed in late eu-geosyncline phase, Gongpoquan porphyry copper deposit formed in orogenic phase, Baishantang copper deposit formed in geosynclinal phase.
综合考虑区域大地构造演化史、矿床成因类型、成矿母岩岩石类型及成岩成矿时代来论证北山地区典型铜矿床成矿大地构造背景,结果表明公婆泉铜矿区斑岩型铜矿形成于褶皱造山期、火山热液型铜矿形成于优地槽期,白山堂铜矿形成于地槽期。
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Youfangxi-Erbahuo area is situated in Late Hercynian Nanxingan geosynclinal fold belt and developed with Mesozoic volcanics, strong Yanshanian intermediate-acid magrnatism and a series of volcanic-subvocanic hydrothermal Ag polymetal ore deposits.
摘要内蒙油房一二把伙地区位于华北地台北缘南兴安晚华力西期地槽褶皱带,中生代火山岩系发育,燕山期中酸性岩浆活动强烈,形成了一系列火山、潜火山热液型银多金属矿床。
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Volcanism ; volcanic earthquake ; geotherm ; Yunnan
火山活动;火山地震;地热;云南
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Nalaqi structure belt ; the time of the main strata ; the ophiolite and glaucophane schist ; the background of the formation of Dahala Junshan volcanic rock ; characteristics of the texture ; Xinjiang China
那拉提构造带;地层时代;蛇绿岩和蓝闪片岩;大哈拉军山火山岩系形成背景;结构特征;中国新疆
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The original Seluohe Group contains at least four parts: Late Archean metamorphic rocks (zircon SHRIMP protolith ages 2517~2534 Ma), Late Paleozoic metamorphosed volcanic-sedimentary strata (zircon SHRIMP 252 Ma), Permian gneissic granitic complex (zircon SHRIMP 260 Ma), and Jurassic mylonitized granites (zircon SHRIMP 168 Ma).
原划分的色洛河群至少由4部分组成:新太古代变质火山-沉积地层(锆石SHRIMP年龄为2517~2534 Ma)、晚古生代变质火山-沉积地层(英安岩锆石SHRIMP年龄为252 Ma)、二叠纪片麻状杂岩体(锆石SHRIMP年龄为260 Ma)和侏罗纪糜棱岩化花岗岩(锆石SHRIMP年龄为168 Ma)。
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Chemical analyses of ores sampled from different elevation at the representative Zoujiashan uranium deposit indicate that Fe〓O〓, FeO, MgO and P〓O〓 increase evidently with depth which is related to alteration of haematite, chlorite and apatite, Na〓O and Na〓O+ K〓O also increase with depth, reaching a maximum of Na〓O at 911 meters below the surface, which suggests alkaline alteration increases downwards. At depth of 90 meters below sea level, where the boundary of the two cycles of the volcanic rocks is located, CaO reaches the maximum, representing maximum of alteration of fluorite.
对典型矿床不同富集标高矿体的化学全分析结果表明:随深度增加,Fe〓O〓、FeO、MgO及P〓O〓的含量有明显增高的趋势,这与赤铁矿化、绿泥石化及磷灰石化有关;-90m标高的CaO含量最高,达17.67%,反映这一部位的萤石化最发育;Na〓O及Na〓O+K〓O的含量由浅入深也存在明显的增高趋势,且Na〓O的含量在911m深处为最高,这充分显示碱交代作用从上到下有增强的趋势,而钠长石化在911m处最强烈。
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Statistics over the last decade show that over 80 per cent of all natural disasters are of meteorological or hydrological origin. In the 1950s, losses from all natural disasters, including those of hydrometeorological origin, earthquakes and volcanic eruptions, were estimated at US$ 4 billion per year and in the 1990s at US$ 40 billion.
过去10年的统计显示,超过80%的自然灾害是气象和水文灾害。20世纪50年代,包括水文气象灾害以及地震和火山喷发在内的所有自然灾害造成的损失估计为每年40亿美元,到了90年代则为400亿美元。
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In this area, there is also observed the occurrence of Neoproterozoic diabase and hypabyssal, composite intrusive rocks of alkalic feldspar granite. The volcanic rocks and intrusive rocks have close spatial association and close age.
杭州河上地区是浙西北上元古界上墅组火山岩发育的典型地区,同时还发育新元古代辉绿岩和碱长花岗岩板状复合浅成侵入体。
- 推荐网络例句
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But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
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Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
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Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。