玄武岩

在斯开岛的特洛登尼许半岛，玄武岩尖塔俯瞰着拉塞海峡。

On Skye 's Trotternish Peninsula , basalt pinnacles loom over the Sound of Raasay .

甘孜&理塘蛇绿混杂岩带历经30余年的研究与争论，无论持何种观点者，均未能在带中找到N型洋脊玄武岩。

N-type Oceanic Ridge Basalt had been not found in the Garg ê - Litang Ophiolite M é lange Zone in the past 30 years .

同位素稀释质谱法对年青玄武岩K－Ar年龄的测定

Determination of K-Ar Ages on Some Young Basalts by IDMS

皖苏鲁新生代玄武岩的Sr－Nd同位素组成及其含义

Sr-Nd isotope geochemistry of Cenozoic basalts from anhui , jiangsu and Shandong Provinces

高Ti和低Ti玄武岩；

High_Ti and low_Ti basalts ;

角砾状黑云母片岩的REE具有洋脊拉斑玄武岩特征；

The REE of breccia biotite schist represents feature of oceanic tholeiite .

古生代岛弧区与富钠高碱玄武岩拉斑玄武岩有关的Au（Cu、Ni、Cr）成矿亚系列；

Au ( Cu , Ni , Cr ) subseries related to Na-rich and high-alkaline basalt and tholeiite of paleozoic arc island (ⅱ);

纳米SiO2表面改性玄武岩纤维的性能研究及作用机理

Study on the property and mechanism of basalt fibers modified by the sizing containing nano-SiO_2

矿物组成特征研究表明，蛋白石坡缕石层的矿物组分（Si、Mg、Al）来源于盆地周围玄武岩淋滤的浅层地下水。

It is proposed that the components for the minerals ( Si , Mg , Al ) were supplied by shallow groundwater that is from surrounding basalt .

玄武岩的MnO-TiO2-P2O5判别图的修改与补充

Revision and supplement on mno-tio_2-p_2o_5 discriminant diagram of basaltic rocks

浙东新生代玄武岩柱状节理面旋回条纹（cyclicstria）的发现及其意义

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

与世界典型地区玄武岩相比，该区玄武岩具有富集包括Zr，U，Th在内的不相容元素的特征。

Comparing with the typical basalts in the world , the Kangxiwar basalt characterized by enrichment of incompatible elements , including Zr , U and Th .

马里亚纳海槽玄武岩K-Ar定年及其地质意义

K-Ar dating of Mariana Trough basalts and its significance

根据试验结果分析得到矿渣、玄武岩、石灰岩、花岗岩及片麻岩矿料与沥青稀释液在25°C~145°C范围内反应的单位表面活化能及指数常数。

Through calculating analysis , the unit apparent activation energy and the pre-exponential constant in the temperature range of 25 ° C ~ 145 ° C of heavy slag , basalt , limestone granite , gneiss were obtained .

始新世太平洋板块以俯冲作用为主，诱发了区域近南北向伸展构造事件，并形成具有EMⅠ富集地幔混染特征的玄武岩；

The subduction of Pacific Plate during Eocene induced the S-N extension event and basalts with EM ⅰ and EM ⅱ enriched mantle contamination were formed .

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。

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 .

拉斑玄武岩SHRIMP锆石年龄352Ma，说明蛇绿岩的形成可持续到晚泥盆世&早石炭世。

Tholeiite has a zircon SHRIMP U-Pb age of 352 Ma , suggesting that the formation of the ophiolites may have continued till the Late Devonian-Early Carboniferous .

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 .

金红石矿床含矿岩石常量元素总体上与玄武岩接近，但以低硅、高钛、高CO2、高碱度为特征。

The most common elements are close to basalt 's in Rocks of containing ore , but SiO 2 is lower and TiO 2 , CO 2 and alkalinity are higher .

玄武岩桉树人工林土壤中的Fe、Mn与P素有效性关系密切，且在还原条件下的土壤Mn对磷的固定作用更大；

The Fe and Mn elements in the plantation soil are closely correlated to the efficiency of P element , and the soil Mn has greater fixation effect on P under the condition of reduction .

在空间上，K2O的含量大体与日本海裂谷带玄武岩相当，而远远高于日本岛弧玄武岩的含量。

At space , the content of potassium oxide ( K_2O ) is as many as that of the basalt of Japan Sea rift belt , but is much higher than that of Japan Island arc .

对京石高速公路路面进行罩面补强，采用聚酯纤维砼、SBS改性沥青及玄武岩，可有效的防止病害的产生，值得推广应用。

The cover-layer construction for Jing-Shi expressway applying polyester fiber concrete , SBS modified asphalt and basalt , can prevent effectively the disease of pavement , and is worth being popularized .

相对主体拉斑玄武岩，东川碱性火山岩贫REE特别是LREE，推测源区发生过先期熔融事件。

Compared with the dominant tholeiites the alkaline volcanics from Dongchuan district are less enriched in LREE , probably resulting from earlier melting events in their source .

单斜辉石相对富含Al2O3、FeO和TiO2，与中国东部新生代玄武岩中单斜辉石巨晶的成分相当。

The clinopyroxene contains rich Al_ ( 2 ) O_ ( 3 ), FeO and TiO_ ( 2 ) which is equivalent to the clinopyroxene giant crystal in Cenozoic basalt in eastern China .

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 .

富Nb玄武岩以相对高的TiO2含量、低的LILE/HFSE和LREE/HFSE比值以及（La/Nb）MN＜2为特征，是岛弧环境的典型产物。

Nb - enriched basalts are characterized by relatively higher TiO2 contents , lower LILE / HFSE and LREE / HFSE , and ( La / Nb ) MN < 2.They are typical productions of island arc environment .

相反，厚度较小的HT和LT2玄武岩则可能是意味着地幔柱活动影响的减弱。

In contrast , the less abundant HT and LT2 basalts may imply a weakening of the influence of the mantle plume activity .

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。

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 .

地球化学研究表明，其为典型的大洋拉斑玄武岩（MORB型玄武岩）。

The study of geochemistry indicates that these metabasic volcanic rocks are characterized with N-type MORB ( mid-ocean ridge basalt ) .

采用X射线衍射技术分析发现玄武岩岩石为晶态结构，而经熔融、拉丝转变为连续玄武岩纤维时，纤维呈非晶态结构，具有近程有序远程无序的结构特征。

The crystal structure of the basalt and basalt fiber were analyzed by X-ray diffraction spectrometer , the results indicated that the basalt was crystal structure . But after melting and drawing , the basalt fiber became non-crystal structure and character with short-range order and long-range disorder .