玄武岩类
- 与 玄武岩类 相关的网络例句 [注:此内容来源于网络,仅供参考]
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There are nine stages of activity of different time basalt from Late Archean to Late Tertiary in Fujian Province,which last two billion years.
福建境内各时代玄武岩类的活动期次从晚太古代至晚第三纪共有9次之多,时间间隔达20多亿年,各自所属的层位年代均比较明确。
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This paper presents new data of electronic microprobe analvses on clinopyroxenes from the layers of picrite and associated basalt in this area. It is shown that the clinopyroxenes from the picrite are exclusively diopside, whereas those from the basalt are diopside and augite, suggesting a continuous variation in composition.
本文对该地区苦橄岩及其共生的玄武岩中单斜辉石的矿物化学成分进行了电子探针分析,结果表明,苦橄岩中的单斜辉石全部为透辉石,玄武岩中的单斜辉石种属有普通辉石和透辉石两类,但玄武岩中的单斜辉石成分呈连续演化关系。
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Firstly, the volcanics and shaly sand were separated with FMI static images and conventional logging data. Then, the image characteristics of all typical volcanics were analyzed with the dynamic FMI images to establish the FMI image patterns of volcanic lava (including rhyolite, dacite, andesite, and basalt) and volcaniclastic rock (including volcanic breeds and tuff).
首先利用FMI静态图像和常规测井曲线将砂泥岩与火山岩区分开来;然后利用FMI动态图像分析了火山岩各种岩性的图像特征,归纳总结出火山熔岩类(流纹岩、英安岩、安山岩、玄武岩)和火山碎屑岩类的FMI图像模式。
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The lava includes sub-alkali and alkali series. The former includes picrite-basalt, basalt, basaltic andesite, andesite, dacite and rhylite etc; the latter includes tephrite, trachybasalt, basaltic trachyandesite, trachyandesite, trachyte and pantellerite etc.
其中熔岩类有亚碱性系列和碱性系列,前者包括苦橄玄武岩、玄武岩、玄武安山岩、安山岩、英安岩、流纹岩等,后者有碱玄岩、粗面玄武岩、玄武粗安岩、粗安岩、粗面岩、碱硫岩等。
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The dyke swarms can be divided into pyroxenite, diabase, gabbro-diabase. They, together with the snychronogenic trachyte and basalt distributed in the area, constitute a suite of bimodal volcanic rock association, indicating that an extension event of the crust occurred in this area during the end of Early- Paleozoic.
该岩墙群主要岩石包括有辉石岩、辉绿岩以及辉长辉绿岩,它们与该区同时代粗面岩和玄武岩类一同构成本区一套具双峰式火山岩特征的岩石组合,指示了该区在早古生代末期曾发生一次地壳伸展扩张事件。
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The Yiyang paleovolcanic suite in Hunan is recognized at Shizuitang and Dadukou, Yiyang City, Hunan Province, covering an area of about 1km^2 and 16km^2 respectively. The volcanic suite consists predominantly of komatiites and tholeiites.
湖南益阳古火山岩分布于益阳市石咀塘和大渡口两地,出露面积分别约为1km^2和16km^2,主要由科马提岩类和拉斑玄武岩类组成。
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Trachyte has as the same isotope feature as the basalts, indicating that they were derived from the same source, and resulted from products during different evolution phases of the same magma source, which is similar to that of the basalts in Emeishan.
该区粗面岩类与玄武岩的同位素特征类似,说明二者具有相同的源区,并可能代表了同源岩浆不同演化阶段的的产物,这与峨眉山地幔柱岩浆活动的玄武岩与粗面岩所具有的演化关系相同。
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The SiO2 content of the dike swarms varies from 50.22% to 61.10% and they are basic-intermediate rock series, mainly basic. The Al2O3 content is generally higher than 15% and they are high aluminum basaltic rocks. The lower magnesium index (Mg#=42.77~62.28) and TiO2 content (0.97~2.41%) illuminate that they suffered magnesium-iron minerals' fractional crystallization and that they did not crystallize from original basaltic magma. The values of Na2O/K2O are all above 1, indicating lower K character. Chemically discriminated, these dike swarms are sub-alkaline rock series.
岩墙群的SiO2含量为50.22~61.10%,属于基性和中基性岩类,以基性为主;它们的A12O3含量普遍高于15%,属高铝玄武岩类;具有较低的镁指数(Mg#=42.77~62.28)及TiO2含量(0.97~2.41%),说明它们经历了镁铁质矿物的结晶分异作用,也指示它们不是由原始玄武岩浆结晶;Na2O/K2O都大于1,显示出低钾的特点;岩石化学判别,岩墙群岩石属亚碱性系列。
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The deep-seated xenoliths entrained by the Cenozoic Hannuoba basalts can be divided into three groups according to their mineral assemblages:Ⅰ Granulites, including felsic granulites, noritic granulites, and dominantly, two-pyroxene granulites,Ⅱ Pyroxenites, including websterites, spinel pyroxenites, and garnet pyroxenites;Ⅲ Peridotites, including spinel lherzolites and spinelgarnet lherzolites.
根据新生代汉诺坝玄武岩中深源岩石捕掳体的矿物组合类型,将其分为主要的三大类:麻粒岩类中包括长英质麻粒岩、苏长质麻粒岩和二辉麻粒岩,辉石岩类包括二辉石岩、尖晶石辉石岩和石榴子石辉石岩,橄榄岩类则包括尖晶石二辉橄榄岩和尖晶石-石榴子石二辉橄榄岩。
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Organic matter, pH, cation exchange capacity and contents of potassium, sodium, magnesium, copper, zinc, manganese, cobalt, iron, selenium, iodin and fluorin were determined of rock and soil samples from six main geological background areas within the main ruminant production base, in Yunnan Province, China. Results showed: 1 the red earth area of Paleozoic basalt and red earth area of carbonate the highest; the yellow-red earth area of mixture of carbonate, clasolite and basalt follows, except for its content of Co, which is relatively lower; and the purple earth area of Mesozoic clasolite, the yellow-red earth area of clasolite and the dark red earth area of Precambrian metamorphite are the lowest
对云南省反刍动物生产基地所属的6个主要地质背景区的土壤和岩石样品的K、Na、Mg、Cu、Zn、Mn、Co、Fe、Se、I和F元素及土壤的有机质、阳离子交换量和pH进行测定分析,结果表明:晚古生代玄武岩红壤区和碳酸岩盐红壤区土壤各种矿质元素都比较高,有机质含量与CEC都较高,特别是Ⅴ区最为显著;碳酸岩盐、碎屑岩和玄武岩混合型黄红壤区除了Co含量较低外,其他元素含量都居中等或偏上水平,有机质含量与CEC仅次于第1类背景区;碎屑岩紫色土区、变质岩赤红壤区和碎屑岩黄红壤区大多数矿质养分相对都比较低,有机质含量与CEC最低。
- 推荐网络例句
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I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""
客人们在卡罗利娜·埃凯家里,举止就文雅一些,因为卡罗利娜的母亲治家很严厉。
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Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.
由著名品牌 Herm è s 设计,这件高贵的制服是香港本土制造,是我们第一套不配帽子的制服。
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Do not 'inflate' your achievements and/or qualifications or skills .
不要 '夸大' 你的业绩或成果,条件或者技能。