volcanic [vɔl'kænik]
- volcanic的基本解释
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adj.
火山的, 猛烈的
- The islands are volcanic.
- 这些岛屿是由火山构成的。
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n.
火山岩
- 相似词
- 拼写相近单词
- volcanian
- volcanically
- volcanicity
- volcaniclastic
- volcanics
- volcanism
- volcanist
- volcanists
- volcanite
- volcanize
- volcanic所属的单词分类
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Personal Qualities / 个人品质
[393]
above average · well-respected · short-tempered · drugged · cool · dextrous · crabby · zealous · wonderful · willing
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A good many mico-landblock of the early Neoproterozoic-Cambrian volcanic rock that distribute in the Tianshan orogenic belt and on its both sides, and the Carboniferous-Permian volcanic rocks that widely distribute in the Tianshan and adjacent regions are selected for subject investigating in this paper. Renewing the ocean-land format and ocean-land conversion process of Tianshan orogenic belt in the Paleozoic is the masterstroke for this paper. On the basis of detailed field investigation, many subjects, such asregional lithology、geochemistry、structural geology、volcanic sedimentology geology、sotope geochronology and synthesis analysis study of geophysics data, are adopted as instrumentality in the paper, this study lays emphasis on the formation, evolution and dynamics of early Neoproterozoic-Cambrian and Carboniferous-Permian volcanic rock in the Tianshan and its adjacent regions to find out Carboniferous-Permian volcanic rock property, eruptive sequence, time and space distribution characteristics, to resume and reconstruct evolution process of Carboniferous-Permian volcanic rock, and to explore connection of magmatism process and lithosphere stretching action of neopaleozoic ocean-land transformation in the Tianshan region.
本文选择分布于天山及其两侧的诸多微陆块上新元古代—早寒武世火山岩和天山地区广泛发育的石炭纪—早二叠世火山岩为研究对象,以恢复重建天山造山带古生代洋陆格局和洋陆转换过程为主线,在详细的野外工作基础上,综合运用区域岩石学、地球化学、构造地质学、火山沉积学、同位素地质年代学、区域地球物理资料综合分析研究等多学科手段,重点研究天山及其邻区新元代—早寒武世和石炭—二迭纪火山岩系的形成演化及其动力学,查明天山石炭纪火山岩系的性质、喷发序列、时空分布特点,恢复重建其形成演化过程,探索天山地区晚古生代洋陆转换过程中火山岩浆作用与岩石圈拉伸作用的关系。
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Our project is based on Cenozoic volcanic rocks and deep seated xenoliths in it to reconstruct the source composition and ctructure. We did field investigation, collection of samples, determination of age and composition characteristics of selected samples. The new achievements are following. 1 recognized a potassic metasomatic source of the Cenozoic volcanic rocks through an integrated research of volcanic rocks and their sources. 2 analysis of TM images suggests the Tuoyun basin is a basin with a volcano group instead of a simple volcano-tectonic basin. We found several volcanic craters and cone, and detected three such craters. 3 systematic reseach of volcanic sections and collection of samples both of volcanic rocks and xenoliths, the later includes peridotite, granulite, gneiss and variety of megacrysts. This is propitious to our further research at this rigion. We would like to point that we collected some peridotite large than 20cm in diameter. It could used to variety of analysis and end the history without mantle chemistry records in the region. 4 we got a U-Pb SHRIMP age of 3.87 Ma for the Kangxiwa basalt.It is the youngest record of U-Pb SHRIMP age in China and provide a chronology restriction for last uplifting of Tibet plateau. 5 the investigation of alkali syenite-synogranite in Taxkogan suggests that the origin of Parmir syntex is related to the Cenozoic magmatism.
本项目立足于从火山岩属性和深源捕掳体反演源区成分与结构两个途径,利用火山岩综合研究成果对地幔源区进行了初步反演,提出源区经受过强烈钾质交代的观点;对重点工作区TM图像进行了初步解译,新发现若干了火山口,并对其中三个火山口作了实地查验,为进一步全面深入开展该区的火山地质学及相关科学问题打下了良好基础,认为托云盆地是一个火山群,而不是一个单一的火山构造盆地;系统测制了火山岩剖面,新采集了一批重要的火山岩和深源岩石捕虏体样品,为下一步工作打下基础,特别是采集到了直径打20cm的幔源橄榄岩包体,可用于各种测试,将可以结束西部造山带没有地幔岩化学分析结果的历史;对康西瓦玄武岩进行了测年分析,取得了我国目前最年轻的锆石U-Pb SHRIMP年龄,对青藏高原挽近地质时期的隆升提供了年代学约束;对帕米尔东缘塔什库尔干碱性岩体的动力学意义进行了探讨,提出青藏高原西部构造结的形成与岩浆活动有关的观点。
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Sub-volcanic rocks include andesitic porphyrite, rhylitic porphyry, cryptoexplosive breccia as well as autobreccia etc.(2) Volcanic lithofacies——through the observation of cores, identification of thin sections and interpretation of well logs and seismic data, there are 8 kinds of lithofacies for the volcanic rocks of Yingcheng Formation are identified: fallout facies, effusion facies, pyroclastic flow facies, base surges facies, lahar facies, eruption-sedimentary facies, subvolcanic facies and extrusion facies.(3) Three types of eruption——i. e. explosion, effusion and surge.(4) Two kinds of eruptive environments——Subaerial (e. g. volcano in Well Shangshen 3) and subaqueous .(5) Three remarkable volcanic apparatus in Shengping-Wangjiatun area——layered, micro-shield and cone volcanoes according to volcanic processes and lithofacies distribution.
次火山岩有安山玢岩、流纹斑岩、隐爆角砾岩及自碎角砾岩等;(2)火山岩相——通过岩芯观察、镜下鉴定、测井与地震资料解释,营城组火山岩中发育8种岩相类型,即爆发空落相、溢流相、火山碎屑流、基底涌流相、喷发沉积相、火山泥石流相、侵出相和次火山相等;(3)火山喷发的形式——有爆发、溢流和涌流三种;(4)火山喷发环境——有陆上(如尚深3井火山)和水下两种;(5)火山机构类型——根据火山作用特点和岩相分布特征,在升平—汪家屯地区识别出三类截然不同的火山机构,即层火山、微型盾火山和渣锥火山。
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volcanic:火山岩
两年之后,他们就用当时最先进的技术设计生产了步枪和手枪,并把其卖给了火山岩(volcanic)连发武器公司. 火山岩连发武器公司将这些枪加以改进,研制设计了著名的火山岩步枪和手枪. 当史密斯和韦森把生产出的枪全部销售给火山岩公司后,
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volcanic:火山的
Venus金星 | Volcanic火山的 | Watchdog管理人员
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volcanic:火山喷发岩
火成岩 igneous rock | 火山喷发岩 volcanic | 混合金属层状氢氧化物(MMLHC) mixed metal layer hydroxide compound
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volcanic:火山岩质的
volcanic 火山的 | volcanic 火山岩质的 | volcanized fiber container 硬质纤维板集装相
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volcanic eruption:火山爆发
火山爆发(volcanic eruption) 庞贝古城灰飞烟灭公元79年8月的一天,古罗马帝国最繁荣(prosperous)的城市庞贝(Pompeii)因维苏威火山爆发而在18小时之后消失.
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