火山作用
- 名volcanism;volcano
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流体温度-密度-盐度关系化学模式显示,水下亚系统是一种火山作用形成的富含NaCl向海底释放的流体系统,该系统形成块状硫化物矿床;
The chemical model of fluid temperature density salinity system indicate that subaquatic subsystem is a fluid system , which is rich in NaCl , is formed by volcanism and spreads toward the bottom of sea , and in which massive sulfide deposits are formed .
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研究表明,大规模火山作用之后铀成矿开始发生,其时间跨度延续了50Ma,成矿作用在时间上是一个相对连续的过程。
The research indicates that large volcanism is followed by uranium metallogenesis with time span of 50 Ma . Metallogenesis is a relatively continuous process , but main metallogenesis in the orefield can be divided into two stages .
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该区火山作用存在三个主要组分端元:(1)低SiO2,低K,LIL富集程度低的端元;
The source can be divided into three end-members : ( 1 ) low SiO2 and K , and slightly enriched in LIL ;
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中国东部中新生代火山作用的pTtc模型与岩石圈演化
PTtc model of Mesozoic and Cenozoic volcanisms and lithospheric evolution in eastern China
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北祁连山是中国重要的铜多金属成矿带之一,与海相火山作用有关的块状硫化物(VHMS)矿床是主要成矿类型。
North Qilian mountains is one of the most important copper mineralized belts in China , Volcano-associated massive sulfide ( VMS ) deposition is the main type in the area .
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构造活动和火山作用对干酪根成烃转化的影响
Influence of tectonic activity and volcanism on hydrocarbon generation of kerogen
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凹陷中新生代火山作用强烈,也具有多期性。
The volcanism is strong in Cenozoic and has several periods .
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盆地形成后期火山作用微弱。
In the late period of basin formation volcanism is weak .
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燕山地区中生代火山作用成因及其对深部过程的制约
Mesozoic Volcanism and Constraint on Deep Geological Process in Yanshan Area
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北祁连山元古宙末-寒武纪主动大陆裂谷火山作用
The Late-Proterozoic-Cambrian Active Continental Rift Volcanism in Northern Qilian Mountains
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新疆东准噶尔陆相火山作用与金、铜成矿
Continental volcanism and Au-Cu metallogenesis in East junggar , Xinjiang
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义县期火山作用对沉积环境影响包括:义县期各沉积环境火山作用产物及火山岩风化产物的充填;
The influences include : infilling of both volcanic and weathering materials ;
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南极南设得兰群岛中-新生代火山作用与地质环境
Mesozoic-Cenozoic volcanism and geological environment in the South Shetland islands , Antarctica
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天山石炭&二叠纪大火成岩省裂谷火山作用与地幔柱
Carboniferous-Permian Rift-Related Volcanism and Mantle Plume in the Tianshan , Northwestern China
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东南沿海地区新生代火山作用和地幔柱
Cenozoic Volcanism and Mantle Plume along Southeast Coast of China
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冲绳海槽及邻区火山作用与形成演化
Magmatism and Evolution of Okinawa Trough and Adjacent Areas
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福建早中生代火山作用研究进展
On Research of Early Mesozoic volcanism in Fujian Province
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这种沉积有机质在火山作用下形成的油气称为有机一无机混合成因的油气。
Such hydrocarbon is called hydrocarbon generated by mixed organic and inorganic actions .
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中国东部新生代火山作用时代与构造环境变迁
Geochronology of Cenozoic Volcanism in East China and global changes of tectonic environment
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早石炭世晚期至早二叠世时期,东准噶尔地区陆相火山作用广为发育。
Late Early Carboniferous-Early Permian continental volcanism is widely spread in East Junggar .
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浙江东南沿海地区中生代火山作用与铅-锌-银的成矿关系
The Mesozoic volcanism and the Pb-Zn-Ag metallogeny on the coast of southeastern Zhejiang Province
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北祁连山早古生代洋脊-洋岛和弧后盆地火山作用
Post-ALL Early Palaeozoic Mid-Ocean Ridge-Ocean Island and Back-Arc Basin Volcanism in the North Qilian Mountains
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印度&亚洲大陆主碰撞过程的火山作用响应
Response of volcanism to the India-Asia collision
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从白垩纪至新生代,火山作用主要与裂谷作用有关。
From the Cretaceous Period to the Cenozoic Period , the volcanism was mainly related to the rifting ;
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火山作用是地球自形成和演化至今的一种基本的地质作用,为现代物质文明提供了重要物质基础。
The volcanic activity is a basic geological process , and provides important foundation for the modern material civilization .
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盆地构造活动和火山作用可以促进干酪根的成烃转化。
Tectonic activities and volcanism in the basin have an influence on hydrocarbon generation of kerogen and its change .
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新生代玄武岩分布地区的热水非均属于现代火山作用直接影响的产物。
All the thermal waters from this ares do not belong to the direct products of modern volcanic action .
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我国与火山作用有关的银矿床占大、中型银矿床总数的33.5%。
In China , silver deposits related to volcanism take up33.5 % of all large and middle silver deposits .
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与海相火山作用有关的铁-铜-铅-锌矿床成矿系列类型及成因初探
A Preliminary Study on the Metallogenic Series Type of Fe-Cu-Ph-Zn Ore Deposits Related to Submarine Volcanism and Its Origin
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同时我们希望弄清过去很少能观察到的火山作用过程。
At the same time , we hoped to learn about processes of volcanism that have rarely been observed before .