碱性玄武岩

三类变火山岩均相对富Na，在地球化学分类图解上样品主要位于碱性玄武岩区域。

The three types of rocks in the orefield are relatively rich in Na and the main samples plot in the area of alkali basalt in the geochemical classification diagram .

碱性玄武岩中的某些巨晶单斜辉石&Ⅰ：晶体结构和晶体化学

Some megacryst Clinopyroxenes from alkali basalt & ⅰ: crystal structure and crystal chemistry

吉东碱性玄武岩K2O含量与岩浆来源深度、岩石年龄的相关性分析

Correlation analysis on k_2o content with magma genetic depth and diagenetic age for Cenozoic Alkali Basalts in Eastern Jilin Province

相比之下，橄榄安粗岩系列比碱性玄武岩系列更富K、Al、Ti、Si。

It seems that shoshonite is richer in K , Ti , Si and poorer in Mg , Fe , Ca than alkaline basalt series .

富碱火山岩的稀土元素组分及球粒陨石标准化型式表明，碱性玄武岩的稀土元素特征亦表现为Eu亏损不明显，轻稀土相对富集。

The REE characteristics and the chondrite-normalized patterns of the alkali-rich volcanic rocks show that there is no significant loss of Eu , relatively enrich LREE .

赣中地区早中生代OIB碱性玄武岩的厘定及构造意义

Early Mesozoic OIB type alkaline basalt in central Jiangxi Province and its tectonic implications

北带玄武岩属碱性玄武岩系列，南带玄武岩属拉斑玄武岩系列；北带玄武岩富集Rb、Th、Ta、Nb，与洋岛碱性玄武岩稀土曲线一致；

The basalt in the north zone belongs to the alkaline basalt series , enriched in Rb , Th , Ta and Nb , showing that its characteristics are consistent with those of oceanic island basalt .

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；

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 .

N-MORB标准化蛛网图和球粒陨石标准化图解表明，本区洋岛拉斑玄武岩和洋岛碱性玄武岩具有共同的岩浆源区。

In addition , the N-MORB-normalized spider diagram and the Chondrite-normalized REE pattern show that the two kinds of rocks were generated from the same parental magmatic source .

以其不相容元素比值，相当于Gough岛EMⅠOIB型洋岛玄武岩，其构造环境判别图进一步印证了海西期火山岩形成于洋岛碱性玄武岩环境。

Its contents are similar to those of EM ⅰ OIB from the Gough islands , and show ocean island alkaline basalt characteristics including the discriminant diagrams of tectonic settings for volcanics , which implies that the Hercynian volcanics were formed in tectonic environment of ocean island .

大部分样品属碱性玄武岩系列，个别属拉斑玄武岩系列。

Basalt series and only one sample belongs to tholeiite series .

碱性玄武岩晶洞中钠沸石的矿物学研究

Mineralogical studies of natrolite in geode of the alkali - basalt

花岗岩和碱性玄武岩中锆石的稀土元素特征

Characteristics of RE elements in zircons from granite and alkaline - basalt

基性岩套由拉斑玄武岩-碱性玄武岩组成。

Basic suite consists of tholeiite and alkali - basalt .

超碱岩，超基性岩基性岩套由拉斑玄武岩-碱性玄武岩组成。

Ultrabasic rock Basic suite consists of tholeiite and alkali-basalt .

母岩浆属钙碱性玄武岩系列；

Its parent magma belonged to calc-alkaline basaltic series .

晚期的碱性玄武岩喷发，标志裂谷作用的消亡。

Eruption of the later alkali - basalt indicates thc subduction of rifting .

与碱性玄武岩有关刚玉巨晶的多阶段成因&包裹体的证据

The Forming of Corundum Megacrysts Related to Alkali Basalt in Changle , Shandong

中国东部新生代碱性玄武岩及幔源捕虏体中的流体组成

The Composition of the Fluids in Alkali Basalts and Mantle-Derived Xenoliths in Eastern China

江苏碱性玄武岩中橄榄石和辉石的成分及演化

Composition and evolution of olivine and pyroxene in alkali basaltic rocks from Jiangsu Province

六合-仪征第三纪碱性玄武岩的钕-锶同位素组成

Neodymium and strontium isotopic compositions for later tertiary alkalic basalts from liuhe-yizheng , jiangsu province , china

较合理地解释了结合带内，大洋拉斑玄武岩、洋岛玄武岩、大陆碱性玄武岩共存的地质特征。

Association of continental alkaline basalt with oceanic tholeiite and oceanic island basalt in the junction is reasonably interpreted .

据构造环境判别图判别，安山岩类又具洋岛碱性玄武岩的特征。

In the light of tectonic discrimination diagrams , the andesite is characterized by alkaline basalt of ocean-island setting .

岩石化学、球化学特征表明，该组火山岩属碱性玄武岩系列大西洋型（质类型）具洋岛特征。

It belong series of the alkaline basalt , and have character of island ocean in geochemistry and petrochemistry .

矿床为碱性玄武岩，以位于大断裂次级构造上为特征。

The deposit is located in alkali basalt which is controlled by the secondary structural zones of the Dunha-Mishan fault .

鲁西费县中生代玄武岩形成于119Ma，为碱性玄武岩。

Mesozoic basalt in Feixian , western Shandong , is composed of alkaline basalt with K-Ar age of 119 Ma .

通过岩石化学、稀土元素、微量元素分析，确定该岩群的原岩为钙碱性玄武岩。

By the petrological , REE and trace element analyses , this group-complex has been determined to be calc-alkaline basalt .

蓬莱玄武岩是一种碱性玄武岩，由磁铁矿、橄榄石、普通辉石和碱性长石组成。

Penglai basalt , an alkali basalt , consists of magnetite and those silicate minerals suchas olivine , augite and alkali feldspar .

今后应重视碱性玄武岩型宝石矿床的研究和找矿评价工作。

Henceforth , a great attention should be devoted to the research , prospecting and assessment of the alkaline basaltic gem deposits .

微量元素比值蛛网图和稀土元素配分型式具有岛弧钙碱性玄武岩的特征。

The spider diagram of trace element ratio and the REE distribution patterns show the characteristics of the island arc calc alkaline series .