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The PGE distributive patterns are the PtPd type, the Pt/Pd ratios of 0.32-0.68 are between the values of enriched sulfide tholeiite (0.38) and primitive upper mantle (1.36), and the similarity of partition patterns of chondritenormalized REE, MORB-normalized trace element and primitive mantle normalized PGE for the rocks of the three phase zones, indicate the Baimazhai intrusive body I formed by the evolution, liquation, intrusion and diagenesismetallogenesis of basaltic magma.
铂族元素配分模式为Pt-Pd型,w/w比值为0.32~0.68,介于富硫化物拉斑玄武岩(0.38)和原始上地幔(1.36)之间,以及稀土元素配分模式、微量元素蛛网图和铂族元素配分模式中不同岩石配分曲线的相似性揭示3个相带不同岩石之间的高度一致性,展示基性-超基性岩形成于玄武质岩浆演化、熔离及岩浆一次性侵入、分异成岩成矿的特征。
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Petrographic and REE and trace element geochemical studies of these rocks and Nd isotope analysis of amphibolite indicate that the protoliths of the Mengjiatun Formation complex are sandstone, mud-rich sandstone and island arc tholeiite.
对这些岩石的岩相学,稀土元素,微量元素地球化学的研究和斜长角闪岩Nd同位素的初步分析,表明孟家屯岩组的原岩建造为一套砂岩,富泥质砂岩和岛弧拉斑玄武岩组合。
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By contrast, the Jilinbaolige lead - zinc - silver ore deposit was hydrothermal deposit which related to Indosinian intermediate-acidic magmatism. Tuff which was one of host rock of the deposit was intermediate volcanic rocks belong to potassium and aluminium rich tholeiite series.
相比之下,吉林宝力格铅—锌—银矿床的容矿围岩之一的凝灰岩属富钾和铝、拉班玄武岩系列的中性火山岩。
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The Mg-rich volcanic rocks consist of high-Mg decite and high-Mg basalt which are the products of congenetic magma,in Ashele are, Xinjiang. In comparison with tholeiite, their εNd are obviously low, implying that they are contaminated by the oceanic sediments during their forming process.
阿舍勒富镁火山岩由高镁英安和高镁玄武岩组成它们可能是同源岩浆的产物,与共生的拉斑玄武岩相比,富镁火山岩钕同位素明显富集,反映在其形成过程中受到了大洋沉积物的混染。
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Through the contrast analysis on the chemical constitution of the magnetic iron ore and the plagioclaseamphibolite in Nanling ultra poor magnetite, and the analysis of graphs of and (FeO+Fe2O3+TiO2)Al2O3MgO, combining the geological features of mining area and the ore body characteristics, the conclusion can be drawn as follows: the plagioclaseamphibolites including magnetite and the plagioclaseamphibolite in Nanling mining area are formed from the oceanic tholeiite with rich iron after the deteriorating, and their genesis types should be the ultrapoor iron deposit of weathered residual origin.
通过对南岭超贫磁铁矿的磁铁矿石、斜长角闪岩化学成分的对比分析,结合矿区地质特征和矿体特征,对矿体进行n-n和w( FeO+Fe2O3+TiO2)-w(Al2O3)-w 图解分析,结果显示南岭矿区的含磁铁斜长角闪岩和斜长角闪岩是大洋富铁拉斑玄武岩经变质作用而形成的,矿床的成因类型为风化残积型超贫铁矿床。
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The petrology and geochemistry indicate that the protoliths of aluminum-rich gneisses are aluminum-rich pelitic and pelitic arenaceous sedimentary rocks, the protoliths of basic granulites are continental tholeiitic basalts. Therefore, the khondalite series may be produced at continental margin.
岩石学及地球化学的初步研究表明富铝的片麻岩的原岩为富铝的泥质和泥砂质沉积岩,所夹基性麻粒岩的原岩可能为大陆拉斑玄武岩,这套孔兹岩系的原岩可能形成于大陆边缘环境。
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alkali basalt:碱性玄武岩
它们是酸性侵入岩和碱性玄武岩 碱性玄武岩(alkali basalt) 基性碱性火山岩的总称. 比一般玄武岩富碱,而二氧化硅、氧化钙较低. 主要矿物为斜长石(中长石-拉长石)、橄榄石、富钙辉石和钛辉石,橄榄石与辉
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labradorite:拉长石;富拉玄武岩
labradophyre 拉长斑岩 | labradorite 拉长石;富拉玄武岩 | LABS 横坐标
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kulaite:闪霞绿玄岩
1880 PERIDOTITIC KOMATIITE 橄榄镁绿岩 | 1990 KULAITE 闪霞绿玄岩 | 1910 LABRADORITE 富拉玄武岩 淡辉长岩