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mantle fluid activity
相关语句
  地幔流体活动
     Alteration and enrichment of K2O in rock are derived mainly from mantle fluid activity.
     岩石钾交代与钾质升高归根于富碱的地幔流体活动
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  “mantle fluid activity”译为未确定词的双语例句
     The tectonic positions and their mean- ing on the depth of lithosphere and mantle fluid activity , affected not only the diamonds potential but also the heterogeneity of kimberlitic sources.
     金伯利岩产出的构造部位及由此所反映的岩石圈厚度、地慢流体活动强度的差异,不仅影响金伯利岩含金刚石性,而且也是地幔源区不均一性的影响因素
短句来源
     Tectonic unit margin and intracontinental extended belt are the places of mantle fluid activity, alkali metasomatism and large deposits localization.
     大地构造单元边缘与陆内张裂活动带是地幔流体交代活动场所和大型矿床形成地。
短句来源
  相似匹配句对
     THE MANTLE FLUID AND METALLOGENY
     地幔流体与成矿作用
短句来源
     COMPOSITION OF MANTLE FLUID
     地幔流体组成
短句来源
     ④fluid;
     4流体;
短句来源
     Mantle eyes
     海湾扇贝外套眼由短柄与外套膜边缘相连,是由一个皮下眼囊构成。
短句来源
     ON FLUID AND MINERALIZATION
     论流体与成矿作用
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There are six kimberliric fields in Eastern North China paltform. These kimberlites located at the center (such a. diamond - bearing kimberlites in Fuxian and Mongyin),north ridge (such as diamond-poor kimberlites in Tieling) , and west ridge ( such as barren kimberlites in Hebi and Shexian ). Based on the discussion of sources constrained on trace elements , Sr and Nd isotopic elements , the kimberlites in represen- tative fields are chosen to invest ggeochemical characters of their sources, and the het- erogeneity...

There are six kimberliric fields in Eastern North China paltform. These kimberlites located at the center (such a. diamond - bearing kimberlites in Fuxian and Mongyin),north ridge (such as diamond-poor kimberlites in Tieling) , and west ridge ( such as barren kimberlites in Hebi and Shexian ). Based on the discussion of sources constrained on trace elements , Sr and Nd isotopic elements , the kimberlites in represen- tative fields are chosen to invest ggeochemical characters of their sources, and the het- erogeneity of the sources are discussed moreover. The tectonic positions and their mean- ing on the depth of lithosphere and mantle fluid activity , affected not only the diamonds potential but also the heterogeneity of kimberlitic sources.

华北地台东部有6个金伯利岩岩区,它们分布于古陆核的中心(如富矿的复县一蒙阴)、北缘(如贫矿的铁岭)及西缘元古代裂陷带(如无矿的涉县一鹤壁)。本文在不相容元素、同位素源区约束讨论的基础上,选择代表性的金伯利岩进行源区地球化学定量反演,进而讨论了源区的不均一性。金伯利岩产出的构造部位及由此所反映的岩石圈厚度、地慢流体活动强度的差异,不仅影响金伯利岩含金刚石性,而且也是地幔源区不均一性的影响因素

K2O content and variation reflect the evolution of the rock and K-metasomatism. Kmetasomatism is one of the indicators of favorable rock and ore location. Alteration and enrichment of K2O in rock are derived mainly from mantle fluid activity. Upward mantle fluid metasomatizes the upper mantle and crust rocks, forming alkali-enriched rock, mobilizes elements forming different deposits. Tectonic unit margin and intracontinental extended belt are the places of mantle fluid activity,...

K2O content and variation reflect the evolution of the rock and K-metasomatism. Kmetasomatism is one of the indicators of favorable rock and ore location. Alteration and enrichment of K2O in rock are derived mainly from mantle fluid activity. Upward mantle fluid metasomatizes the upper mantle and crust rocks, forming alkali-enriched rock, mobilizes elements forming different deposits. Tectonic unit margin and intracontinental extended belt are the places of mantle fluid activity, alkali metasomatism and large deposits localization. Gold mineralization has a special relationship to K-metasomatism.

钾质高低及变化可反映岩石演化程度和钾交代作用。发生钾交代的岩石为成矿有利岩石和找矿标志。岩石钾交代与钾质升高归根于富碱的地幔流体活动。上升的地幔流体交代上地幔和地壳岩石形成富碱岩石和碱交代岩,并活化迁移不同围岩中成矿元素形成各种矿床。大地构造单元边缘与陆内张裂活动带是地幔流体交代活动场所和大型矿床形成地。许多矿床包括金矿床和钾交代关系密切。

Diamonds derived from kimberlites within craton and form lamproites within cycle-craton are generally xenocrystals with complex growth history. Based on the consideration of multistage crust-mantle interaction events and multicycle mantle fluid activity within continental lithosphere,and the combination with the discontinuous growth reflected by inter-structure of diamond and the FTIR research results in situ, a conclusion can be drawn that the diamonds with complex growth were the production of the carbonatic...

Diamonds derived from kimberlites within craton and form lamproites within cycle-craton are generally xenocrystals with complex growth history. Based on the consideration of multistage crust-mantle interaction events and multicycle mantle fluid activity within continental lithosphere,and the combination with the discontinuous growth reflected by inter-structure of diamond and the FTIR research results in situ, a conclusion can be drawn that the diamonds with complex growth were the production of the carbonatic melts or the incompatible elements-rich CHON fluid interaction with the pre-existed diamonds in lithospheric mantle during cratonic accretion. The results of 1.1~1.2Ga derived from different methods probably show that a strong accretion and modification took place beneath the lithosphere mantle in the eastern part of the North China Block.

产于克拉通地块及其边缘褶皱带金伯利岩和钾镁煌斑岩中的原生金刚石 ,其主体上属地幔捕虏晶并具复杂的生长历史。从克拉通岩石圈存在复杂多发的壳幔相互作用和多层次的流体活动事件的角度 ,结合金刚石的精细内部结构所反映的不连续生长及微区原位傅立叶变换红外光谱研究成果 ,认为具复杂生长环带的金刚石是克拉通地块内部增生过程中的地幔流体对已形成金刚石间的相互作用的产物。这一认识有助于增进金刚石微观结构与地块内部改造事件有机联系的研究。地幔交代作用的介质成分主要为SiO2 不饱和的碳酸岩熔体或富含不相容微量元素的CHON流体。多种年龄数据所给出的 1 1~ 1 2Ga结果 ,可能反映华北地块东部的岩石圈深部存在一次明显的地幔增生改造过程。

 
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