镁铁质岩
- 网络mafic rock;Zomara
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认为该断裂带两侧的地壳结构有较大差异,北侧地壳为二层结构,上地壳中发育有高密度、强磁性、高速度的镁铁质岩;
There is appreciable difference in crustal structure on the two side of the fault zone : the crust on the northern side has a two-layer structure and there occur very dense , strongly magnetic and high-velocity mafic rocks ;
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金川超镁铁质岩元素及稀有气体同位素地球化学特征
Element and noble gas isotopic geochemistry of ultramafic rocks in Jinchuan
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论超镁铁质岩型温石棉矿床成矿模式
The minerogenetic model of chrysotile asbestos deposits in ultramafic rocks
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第1期岩石为层状超镁铁质岩系,具韵律层结构。
The first period intrusive rocks are layered ultramafic rocks that have rhythmic structure .
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辽宁-吉林东部地区超镁铁质岩包体的微量元素地球化学特征
Trace geochemical elemental characteristics of ultramafic inclusions in eastern part of Liaoning-Jilin district , China
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依据测定结果分析了超镁铁质岩中稀土元素及其他微量元素的地球化学特征:认为,超镁铁质岩为上地幔经历部分熔融后残留的地幔物质。
According to geochemical characteristics of REE and others trace elements , indicating that ultramafic rocks are refractory residue left after partial melting of the upper mantle .
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依此计算了中国11种酸性岩、19种中性(含正长)岩、8种镁铁质岩和4种超镁铁质岩的10个主成分和68个微量元素的平均含量。
On the basis of our results , abundances of 10 major compositions and 68 trace elements of 11 acidic rocks , 19 intermediate rocks , 8 basic rocks and 4 ultramafic rocks have been calculated .
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在查阅大量的有关菱镁矿床成因的资料后,结合本人在该矿区长期工作所积累的经验,提出该菱镁矿的成因可能与超镁铁质岩有关。
According to a great amount of information on the magnesite deposit and long-term working experience in the study area , the author proposed that the origin of the magnesite deposit might have related to ultramafic rock .
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黑龙江五星铜镍、铂钯矿床镁铁质杂岩的元素地球化学特征与岩石成因
Element geochemical characteristics and petrogenesis of mafic complex rocks in the Cu-Ni and Pt-Pd deposit of Wuxing in Heilongjiang
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而且,这种情况在塔里木盆地及周缘地区十分发育的镁铁质岩浆岩中具有广泛的代表性。
And this case is representative among the well-developed mafic magmatic rocks in the Tarim Basin and its peripheral areas .
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阿尔泰造山带东段的乌恰沟地区发育大量镁铁质侵入岩(岩脉或小岩体),包括闪长玢岩和具堆积结构的角闪辉长岩和橄榄辉长岩。
Mafic intrusive rocks in Wuqiagou area , eastern part of Ahai Orogenic belt , include diorite porphyrite , olivine gabbro cumulates , and hornblende gabbro cumulates .
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北桐柏地区镁铁质麻粒岩锆石U-Pb年代学及变质作用东秦岭-桐柏-大别山碰撞造山带北部早古生代变质火山岩系特征及其形成环境
Zircon U-Pb geochronology and metamorphism of mafic granulite from North tongbai , central china . the characteristics of the metavolcanic rock series of Early Palaeozoic era and the structural environment of their genesis in the northern part of the East qinling-tongbai-dabie collision type orogenic belt
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豫南高压镁铁质麻粒岩的初步研究
Preliminary study of high pressure mafic granulites in southern Henan Province
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镁铁质大火成岩省是地幔柱岩浆活动的直接产物,一般与聚敛板块边界无关。
Mafic LIPs are generally thought to have a mantle plume origin and not directly related to convergent plate boundaries .
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东南极拉斯曼丘陵出露的麻粒岩相泥质片麻岩和镁铁质麻粒岩经历了复杂的变形变质历史。
Granulite facies pelitic gneiss and mafic granulite outcropping in the Larsemann Hills , East Antarctica , underwent a complicated deformational metamorphic history .
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这些岩石一般都展示了平衡的矿物共生结构,但在镁铁质麻粒岩的单斜辉石中普遍发育斜方辉石(易变辉石)的出溶片晶。
All metamorphic rocks exhibit an equilibrium texture , but exsolution lamellae of orthopyroxene ( pigeonite ) occur in all clinopyroxenes in mafic granulites .
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镁铁质大火成岩省可分为:大陆溢流玄武岩、火山被动陆缘、大洋高原玄武岩、大岩墙群和大层状侵入体。
Included as mafic LIPs are continental flood basalts , passive volcanic margin and oceanic plateau basalts , giant dyke swarms and large layered intrusions .
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高压基性麻粒岩与榴辉岩的抬升转换作用&信阳超镁铁质火山角砾岩管的捕虏体研究
Elevation and translation between high pressure mafic granulite and eclogite : research into xenoliths from ultramafic volcanic breccia pipe , xinyang , Henan province , China
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东南极内陆-格罗夫山存在一套经历了麻粒岩相变质作用的镁铁质麻粒岩和斜长角闪岩。
Mafic granulites and amphibolites crop out in the Grove Mountains ( GMs ), 450km south of Zhongshan Station on the coast of Prydz Bay , East Antarctica .
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地幔柱岩浆作用形成的镁铁质大火成岩省中,出现的少量花岗岩是非造山、板内或A-型花岗岩,而不会是S-型花岗岩。
In the mafic large igneous province formed by plume magmatism , the granites associated with continental flood basalts are non-orogenic , intra-plate and A-type granites rather than S-type .
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镁铁质火成岩作为分布最为广泛的典型幔源岩石,已成为探索地幔化学性状及示踪岩石圈深部过程的主要研究对象。
Mafic igneous rock , a widely distributed and typical mantle-derived rock , has become a major research source for revealing possible mechanisms for the chemical evolution of the mantle .
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海山顶部的岩石是由蛇纹石化超镁铁质方辉橄榄岩组成。
The rocks at the top of the seamount consist of serpentinized ultramafic harzburgite .
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扬子地块西缘新元古代镁铁超镁铁质岩研究进展
Advance in the Study of Neoproterozoic Mafic-Ultramafic Rocks in the Western Margin of the Yangtze Craton
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新疆北部三个与岩浆型Ni-Cu硫化物矿床有关的镁铁&超镁铁质岩的地球化学特征对比研究
Comparison on Petrologic Geochemistry of Three Mafic-ultramafic Intrusions Associated with Ni-Cu Sulfide Deposits in Northern Xinjiang
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与镁铁-超镁铁质岩密切相关的铜镍硫化物矿床是铜、镍、铂族元素(PGE)资源的重要矿床类型。
Cu-Ni sulphide deposit related to mafic-ultramafic rocks is the main type of copper , nickel , platinum group elements ( PGE ) deposits .
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3)洋内岛弧下地壳(镁铁和超镁铁质岩);
3 ) Low crust from intra-ocean island ( mafie-ultramafic rocks );
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内蒙古镁铁质&超镁铁质岩型铜镍矿床成矿条件与找矿远景分析
Metallogenic conditions and prospecting for copper-nickel type deposits in mafic-ultramafic rocks in Inner Mongolia
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东天山镁铁质-超镁铁质岩带岩石特征及铜镍成矿作用
Petrological characteristics and copper-nickel ore-forming processes of Early Permian mafic-ultramafic intrusion belts in East Tianshan
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本文综述了近年来的研究成果,介绍了与镁铁质-超镁铁质岩有关的矿床类型和成矿作用。
This paper summarizes recent research results and introduces ore deposit types and mineralization related to mafic-ultramafic rocks .
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大别山北部镁铁-超镁铁质岩带中的榴辉岩主要有两种产状,一是产于变形较强(面理化)的橄榄岩中,另一种是产于片麻岩中。
The eclogites from the mafic-ultramafic belt in the Northern part of the Dabie Mountains are distributed as lenses in the foliated peridotites and the ortho-gneisses .