地幔柱
- 网络plume;mantle plume;Superplume
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近几十年来,对地幔柱的研究和探索取得了重要进展,尤其是动态地幔柱模式(timedependent)的提出将这一研究热点推向了新的台阶。
In the recent decades , much advance has been achieved in understanding the movement and origin of identified upwelling mantle plume , of which the hypothesis of time-dependent mantle plume model provide a new thought for its evolution and plume-related magmas .
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塔里木库鲁克塔格古原洋裂谷与地幔柱
Kuruktag ur-ocean rift and mantle plume in the Tarim Basin
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峨眉地幔柱轴部的榴辉岩-地幔岩源区:主元素、痕量元素及Sr、Nd、Pb同位素证据
The Axial Zone Consisting of Pyrolite and Eclogite in the Emei Mantle Plume : Major , Trace Element and Sr-Nd-Pb Isotope Evidence
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利用新资料分析了Afar地幔柱与板块构造事件对红海演化过程的影响程度。
New data provide a more complete analysis on how the Afar plume and plate-scale tectonic events interacted the Red Sea Basin evolution .
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结果表明,少数样品的Pb同位素与Hanan和Graham定义的C组分相似,而大多数样品则不在C组分范围之内,说明除地幔柱物质外,有岩石圈物质的加入。
Minor samples have the same Pb isotopic composition as C component defined by Hanan & Graham , whereas most of the samples are without C component , suggesting lithospheric materials besides mantle plume .
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峨眉地幔柱-岩石圈的相互作用:来自低钛和高钛玄武岩的Sr-Nd和O同位素证据
Emei Mantle Plume-Subcontinental Lithosphere Interaction : Sr-Nd and O Isotopic Evidences from Low-Ti and High-Ti Basalts
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相反,厚度较小的HT和LT2玄武岩则可能是意味着地幔柱活动影响的减弱。
In contrast , the less abundant HT and LT2 basalts may imply a weakening of the influence of the mantle plume activity .
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根据南部非洲CMB上存在一尖锐边界S波低速异常体(超级地幔柱)的最新研究成果,利用地震层析成像及重力场理论,对该异常体的结构进行了探讨。
On the basis of the seismic tomography data we find that there is a low velocity body of S waveform on the CMB under south Africa .
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基性火山岩有磁性玄武岩与拉斑玄武岩两个岩浆系列,且富集LREE与LIL,其岩浆源区为与洋岛玄武岩源相似的富集地幔柱源。
The basic rocks , which belong to alkali and tholeiitic magma series , enriched in LREE and LIL . The magmatic source of basic volcanic rocks was enrichment mantle being analogous to oceanic island basalts sources .
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17件锆石U-Pb的谐和年龄(858-778Ma)可能是麻粒岩受新元古代地幔柱活动影响,在快速冷却和抬升过程中发生角闪岩相退变质作用的时代。
Seventeen zircon U-Pb concordant ages ( from 858 to 778 Ma ) show the time of amphibolite-facies retrogressive metamorphism of the Panxi granulites . Amphibolite-facies retrograde metamorphism took place during rapid cooling and uplift of the Panxi granulite , which was probably correlated with the Neoproterozoic mantle plume activities .
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地幔柱可能有不同的根源深度,沿幔柱上升的地幔流在200-350km深度转变为水平流动。
Mantle plumes marked by hotspots on the surface of the earth can have varied depths of origins . Rising flow within plumes can deflect by several thousand kilometers and turn to lateral flow at depths 200 ~ 350 km .
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地幔柱构造理论研究若干问题及研究进展
Some problems and advances in the theoretical studies of mantle plumes
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渤海湾盆地构造演化的地幔柱模型研究
The Mantle Plume Model for the Evolution of Bohai Bay Basin
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阐明了地幔柱构造与板块构造的关系。
The relation between mantle plume and plate motion is summarized .
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地幔柱起源于上下地幔还是核幔边界?
Origin from upper mantle-lower mantle boundary or the core-mantle boundary ?
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地幔柱构造与地幔动力学&兼论其在中国大陆地质历史中的表现
Plume Tectonics and Mantle Dynamics : On Their Records in Chinese Continent
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海南地幔柱上地幔结构新的地震学约束
New seismic constraints on the upper mantle structure of the Hainan plume
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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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地球化学急变带与地幔柱资源系统
Geochemical Steep Zones and Resource Systems of Mantle Plumes
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大火成岩省是地幔柱作用引起的吗?
Were large igneous provinces caused by mantle plumes ?
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地幔柱及其成矿作用综述
A review on mantle plume and its ore-forming process
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物质的粘度对于地幔柱的形成和发展起着重要作用;
Viscosity played an important role in the process of mantle plume upwelling ;
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上地幔的热状态:对地幔柱没有作用
The thermal state of the upper mantle ; no role for mantle plumes
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南海区域的上地幔活动特征及印支地幔柱
The upper mantle activation in South China Sea and the Indosinian mantle plume
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秦岭地幔柱源岩浆活动及其动力学意义
Magmatic activities from plume-source in the Qinling orogenic belt and its dynamic significance
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地幔柱假说及其发展
The hypothesis of mantle plumes and its development
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地幔柱是相对静止的。
( 3 ) mantle plumes are stationary .
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华北太古宙从地幔柱体制向板块构造体制的转化
Archean geotectonic transition of systems from mantle plume to plate tectonics in North China
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中国东南大陆边缘中新生代地幔柱活动的岩石学记录
Petrological Records of the Mesozoic_Cenozoic Mantle Plume Tectonics in Epicontinental Area of Southeast China