basalts

The host rocks are quenched-shattered amygdaloidal basalts at the tops of the basalt floods and carbonolithintercalations in the basalt floods.

矿化主岩为玄武岩流顶部的淬碎玄武质角砾岩和玄武岩流之间的含炭沉积岩；

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The REE of calc-alkali basalt and tholeiite are characterized by lower amounts of REE and LREE-depleted distribution pattern and which reflect that the basalts were formed by the partial melting of LREE-depleted and slightly HREE-rich mantle.

钙碱性玄武岩系列和拉斑玄武岩系列玄武岩具有低的REE含量和亏损的LREE配分型式，表明它是由LREE亏损和HREE略有富集的地幔部分熔融形成；

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For the basic lavas with subduction-type signatures, we can judge whether they are really island-arc or active continental margin basalts by studying Zr contents and Zr/ Y ratios or Zr/ Y-Zr diagram.

对于那些具有消减带信号的基性熔岩，可以根据Zr含量和Zr/Y比值，或利用Zr/Y-Zr图解，判断它们是否真正是岛弧或活动大陆边缘玄武岩。

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The pyroxenes from the remaining sections and localities investigated are augites, whose chemical compositions show an evolutionary trend characteristic of calcium-rich clinopyroxenes in tholeiitic basalts.

其他剖面和地区多为普通辉石，且具拉斑质岩系富钙辉石的成分和演化特点。

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Petrological and geochemical characteristics and tectonic implication of Cenozoic basalts in TUNKA basin in Baikal rift belt

贝加尔裂谷带通京盆地新生代火山岩石学与地球化学特征及其构造意义

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Age dating by thermoluminescence for Quaternary basalts in Penglai and other place, shangdong

山东蓬莱等地第四纪玄武岩的热发光年龄

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PREMA ( FOZO) is a popular end member of mantle for all ocean island and flood basalts, probably representing the lower mantle.

PREMA（FOZO）则是洋岛玄武岩和溢流玄武岩公共端员。

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The Tianshan basalts may result from a mantle plume.

天山玄武岩可能是产生于地幔柱头.

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Yingcheng group's volcanic rocks in Shengping field areof rhyolites, andesites, basalts, felsites and volcanic fragmental rocks.

升平气田白垩系营城组火山岩主要为流纹岩 、 安山岩 、 玄武岩 、 霏细岩及火山碎屑岩.

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According to petrochemistry characteristics, middle basalts are named quartz tholeiite primarily and southern ones olivine tholeiite.

根据岩石化学特征命名，中部样品主体为石英拉斑玄武岩，南部样品则为橄榄拉斑玄武岩。

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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.

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。

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It was shown that the amphibolite was transformed from oceanic tholeiitic basalts and the leptynite was converted from acidic sedimentary rocks.

结果表明，该区的斜长角闪岩是由大洋拉斑玄武岩变质而成，变粒岩则是由酸性沉积岩变质而成。

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These basalts are characterized by enriched large ion lithophile elements and high field strength elements, strong fractionation between light and heavy rare earth elements, no negative Nb anomaly, that resemble to geochemical characters of ocean island basalts.

论文通过对玄武岩地球化学的研究，发现营城组玄武岩富集大离子亲石元素和高场强元素，轻重稀土分异强烈，无Nb负异常，显示与OIB类似的地球化学特征。

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This paper reports the petrological and geochemical characteristics of Permian alkaline and tholeiitic basalts in the Shuanghu Area, central Qiangtang Block.

对青藏高原羌塘地块中部双湖地区发育的二叠系碱性系列和拉斑系列玄武岩进行了详细的地球化学研究。

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It is the suture zone between Qinling and Yangtze plates. It is a tectonic melange, consisting of tectonic blocks of ultrabasic rocks, gabbros ( accumulative gabbros), diabasic dike swarms, mid& ocean ridge basalts and island arc volcanic rocks.

它是秦岭与扬子之间的缝合带，为一典型的蛇绿构造混杂带，由超基性岩、辉长岩（堆晶辉长岩）、辉绿岩墙群、洋脊玄武岩和岛弧火山岩构成。

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Discovery of cyclic stria on the surface of columnar joints in Cenozoic basalts in eastern Zhejiang and its significance

浙东新生代玄武岩柱状节理面旋回条纹（cyclic stria）的发现及其意义

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The NEBs are sodium-rich but potassium-poor, and differ from the vast majority of normal arc basalts in their higher Nb/ La ratios and minor negative to positive anomalies in Ba, Nb and Ti.

富Nb玄武质岩富钠贫钾，具有微弱负-正Ba、Nb和Ti异常以及高的Nb/La比值，不同于大多数正常岛弧玄武岩。

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The basalts have low TiO 2 and P 2O 5 content and are enriched in LIL and LREE.

玄武岩具有低TiO2和P2O5含量且富集LIL和LREE元素。

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The Quaternary basalts in Shandong Province contain mantle xenoliths of varied quantities and sizes.

山东省第四纪玄武岩中含有数量、大小不等的幔源包体.

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Characteristics of three-component mixing of oceanic basalts and three-layer mantle structure model

大洋玄武岩的三元混合特征及地幔的三元结构模式

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Penghu Islands, mainly composed of basalts, enjoy well-developed columnar joints that create many dramatic geological and landscape types of scenery.

澎湖群岛主要由玄武岩构成，岛上有各式各样独特的地质、地貌景观。

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The component derived from the subducting makes a contribution of at most 20%, that results in the intensive enrichment of Pb in the basalts in the Trough.

俯冲组分是岩浆源中的另一个主要成分，贡献量为20%左右，是造成海槽区玄武岩中Pb强烈富集的重要原因。

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Ophiolites exposed in Dongqiao are mainly composed of metamorphic peridotites, gabbros and basalts.

西藏东巧蛇绿岩主要由变质橄榄岩 、 辉长岩及玄武岩等组成.

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The basalts were intruded by numerous silica dykes, some of which terminate in the sedimentary layers.

玄武岩被无数的二氧化硅矿脉侵入, 其中一些终止于沉积岩层.

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Lied in the west of Guizhou, the Emeishan basalts do appear to the high distinguishability both on the TM images and panchromatic aerophotos.

贵州西部峨眉山玄武岩无论是在航天影像（TM）上，还是全色航空相片上，均有较高的可识别性。

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Petrogenesis research and tectonic environment analysis about Mesozoic-Cenozoic basalts from southern Hunan

湘南中新生代玄武岩成因研究及构造环境分析

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The basalts in this region also contain abundant megacrysts of augite and anorthoclase and rare megacrysts garnet.

本区玄武岩还含有丰富的普通辉石巨晶和歪长石巨晶，而石榴石巨晶罕见。

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Research on petrology and geochemistry of Cenozoic Neogene basalts on Jiangsu-Anhui border revealed that basalts had the characteristics of alkali basalt system rich in Titanium 、 al-kali 、 lithophile element.

本文通过对苏皖嘉山一盱眙地区新生代晚第三纪玄武岩的岩石学、岩石化学及岩石地球化学的研究表明该区玄武岩具有富钛、富碱和贫铝的特点、属大陆碱性玄武岩系列。

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A Study on Geologic Features and Effusive Hazards of Shield-forming Basalts in the Tianchi Volcano

天池火山造盾玄武岩地质特征与溢流性灾害研究

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The transitional basalts are indistinguishable with tholeiitic basalts in Re-Os isotope geochemistry, but they are different in other elemental and isotopic aspects in previous studies.

过渡玄武岩与拉斑玄武岩的Re-Os同位素性质是一致的，与以往的观察有所不同。

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