火山岩

新西兰陶波酸性火山岩Sr－O同位素体系

Sr-O Isotopic System of Taupo Acidic Volcanic Rock in New Zealand

年代为0.58±0.13Ma的反极性火山岩的资料肯定了安比拉（Emperor）事件的存在。

The reversed polarity shown by the volcanic rock dated 0.58 ± 0.13 Ma has confirmed the occurrence of Emperor event .

浅成-次火山岩黑云母Cu，Au成矿示踪意义

Biotite as A Tracer of Cu and Au Mineralization in Hypergene-Subvolcanic Plutons

华南火山岩及铀成矿相关的Sr，Nd，Pb同位素演化规律研究

Research on evolutionary laws of sr , nd , Pb isotopes of uranium metallization and volcanic rocks in South China

在整个康定岩群内可以应用长英质火山岩稀土元素分布型式平缓和明显负Eu异常的特点来优选勘查靶区。

Flat chondrite-normalized REE pattern and negative Eu anomaly of felsic volcanic rock may be used for choose prospecting target in the Kangding Group .

其喷发的火山岩不整合覆盖于晚更新世湖光岩组地层之上；在岩石学上具有独特的火山岩岩相特征和化学成分（高MgO，低SiO2）。

These volcanic rocks are characteristic of volcanic lithofacies and of chemical composition of higer MgO and lower SiO_2 in petrology .

南设得兰群岛利文斯顿岛鲍勒斯山组火山岩的~（40）Ar/~（39）Ar年龄及地质意义

40 ar / 39 ar ages and their geological significance of the volcanic rocks of Mount Bowles formation in Livingston island , South Shetland Islands

一致表明研究区具有寻找与火山岩有关的浅成热液型Pb、Zn矿床和斑岩型矿床有关的Mo多金属矿产的良好潜力。

Agreed that the study area good exploration potential for looking for volcanic-related epithermal Pb and Zn deposits and Mo polymetallic mine closely related to porphyry deposits .

火山岩样品的预处理及其对K-Ar年龄值的矫正

Preprocessing of Volcanic Rocks and Its Influence to Age of K-Ar Dating

通过主元素、稀土元素、Sr、Nd、Pb同位素地球化学特征并结合板块俯冲模式来讨论长白山地区新生代火山岩系的形成和演化。

Major element , REE and Sr , Nd , Pb isotope geochemistry is dealt with for the cenozoic volcanic rocks in Changbaishan area , Northeast China .

幔型次火山岩主要与黄铁矿型Cu、Pb、Zn多金属矿化有关，属海相火山岩矿床系列。

Subvolcanic rocks of the mantle type related to Cu , Pb and Zn multi-metal mineralization of the pyrite type belong to the series of ore-bearing volcanic rocks of the marine facies .

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 .

深大断裂的活动与分布控制着CO2气藏的形成与分布；火山岩储集物性的优劣控制着CO2气藏的形成；

The activity and distribution of deep big faults controlles the formation and distribution of carbon dioxide gas reservoirs , The reservoirs ' quality of volcanic rock controlles the formation of carbon dioxide gas reservoirs .

南天山西段古生代火山岩Ar-Ar年龄新资料

New Ar-Ar Geochronologic Data of Paleozoic Volcanic Rocks in the Western Segment of Chinese Southern Tianshan

以其岩枕巨大（5～8m）、形态多样构成独特的火山岩景观。

The gigantic pillow lava , characterized by huge pillow bodies ( 5 to 8 m ) and diverse shapes , constitutes a distinctive landscape of volcanic rocks .

以K－Ar稀释法和40Ar／39Ar阶段加热法对利文斯顿岛百尔斯半岛的熔岩和次火山岩测定了同位素年龄。

K Ar dilution and 40 Ar / 39 Ar step heating methods have been chosen in dating the isotopic ages of the volcanic and intrusive rocks of Byers Peninsula , Livingston Island .

本文从SrNdPb、UPb同位素及岩石化学、稀土元素地球化学方面讨论了燕辽地区中生代火山岩的年代学特点、成因及形成的构造环境。

Based on the Sr-Nd-Pb and U-Pb isotopes , the petrochemistry and the rare earth element geochemistry , this paper discussed the chronological characteristics , the genesis and the tectonic environment of the Mesozoic volcanic rocks in the Yanshan-Liaoning region , northeastern China .

采用多孔介质&火山岩为载体的上向流曝气生物滤池（BAF），研究了限制供氧条件下，无有机碳源时反应器的硝化反硝化特性。

Adopting upflow biological aerated filter ( BAF ) with porous medium-lava as carrier with the nitrification and denitrification characteristics of the reactor with no organic carbon source were studied under the oxygen-limited condition .

结合多种测井方法，以地层元素测井（ECS）技术为主要手段，对火山岩进行了岩性识别研究，建立了一套火山岩储集层的岩性识别方法。

Combined with ECS ( Elemental Capture Spectroscopy ) logging and other logging technologies , it studies on the lithology identification of the igneous rock . A set of evaluating methods of igneous hydrocarbon reservoir are established .

岩石的U-Ra平衡系数研究表明，火山岩类存在明显的U-Ra不平衡现象，而花岗岩提供成矿铀源应发生在16000a以前。

U-Ra equilibrium coefficients of rocks indicate that there is obvious U-Ra disequilibrium phenomenon in volcanic rocks , and the time when granites provided uranium source occurred 16000 a ago .

利用岩石化学方法判别及ESCORT专家系统分析可知，独山岩体属于发育在秦岭洋洋壳上的岛弧火山岩，它为独玉的形成准备了物质条件。

It can be known by means of petrochemistry differentiation and ESCORT expert systematic analysis that the Dushan lithosome belongs to island are volcanic rock breeding on the oceanic lamella of Qinling Ocean , which gets the material conditions ready for the formation of Dushan jade .

高镁火山岩接近于原始岩浆的组成，岩浆源区与地球平均成分BSE的成分特征相近，起源深度为下地幔，为该地幔岩较高程度的部分熔融（＞25%）而形成的。

High-Mg volcanic rocks approach the primitive mantle compositions , and their magmatic source is close to the composition of BSE , derives from the lower mantle and formed by this type - mantle rocks ' fractional melting highly ( > 25 % ) .

明确早期175~120（11O）Ma为高钾钙碱性火山岩系列且具向酸性岩系列过渡的特征；

The volcanic rocks formed in early stage , from 175-120 ( 117 ) Ma , are high-K calc-alkali series , with a trend of transition to acid rock series .

该区含油气的火山岩主要为中石炭世巴山组（C2b），包括熔岩（安山岩和玄武岩）和火山碎屑岩。

Oil - and gas-bearing volcanic rocks in this area belong to the Bashan group ( C_2b ) . The rocks are mainly lava ( including andesites and basalts ) and pyroclastic ones .

伸展盆地的晚期阶段，在中酸性火山岩系与上覆碳酸盐岩接触带中产出赵卡隆式VHMS矿床，具有Ag-Fe-Pb-Zn金属组合特征，形成于浅水环境；

In the late stage of the extension basin , the " Zhaokalong-type " VHMS deposits showing the association feature of elements ( Ag-Fe-Pb-Zn ) formed in the contract strip between the intermediate-acidic volcanic rocks and the overlying carbonate rocks and developed in the shallow-water facies .

作者通过对武当群的所有年龄测定数据重新作了综合分析之后认为：1.变酸性火山岩的下限年龄大于1900Ma；

The authors analyzed and interpreted again all the age data in the Group using some new dating methods . The integrated analysis indicates the ' following : ( 1 ) the lower limit of the ages of the meta-acid volcanic rocks should be older than 1900 Ma ;

强烈蚀变火山岩地层组构及其防塌钻井液研究

Characteristics of altered pyroclastic rock and preparation of anti-sloughing drilling fluid

我国东部白垩纪蚀变火山岩中的斜发沸石和丝光沸石

Clinoptilolite and mordenite in Cretaceous altered pyroclastic rock in eastern China

用于火山岩预测的地震属性提取及有效性分析方法研究

The abstraction of seismic attributes and its effectiveness in volcanic prediction

自然电场法勘探火山岩地区地下水的研究

A study of self-potential method in hydrogeological exploration of volcanic area