火山活动

通过K-Ar同位素年代学研究，将长江源区新生代的火山活动划分为3期：第Ⅰ期（40.1～35.1Ma）火山喷发较弱，形成小范围分布的细粒安粗岩和斑状粗面岩；

Based on K-Ar isotope chronological research , Cenozoic volcanism in the source region of the Yangtze River is divided into three phases . In the first phase ( 40.1-35.1 Ma ) volcanism was weak , forming fine-grained latite and porphyritic trachyte of limited distribution .

中国东北地区的转型中国东北东部中生代火山活动与泛太平洋板块

Mesozoic volcanism in the eastern part of Northeast China and Transpacific plate

火山活动产生了温泉和沸腾的泥浆池。

Volcanic activity has created thermal springs and boiling mud pools .

很多海洋岛屿都是因火山活动而形成的。

Many oceanic islands are volcanic .

B阶段为第一次火山活动和生物灾难事件；

Stage B is " the first volcanic activity and biological hazard ";

济阳坳陷火山活动和CO2气藏的关系研究

The relativity of igneous activity and co_ ( 2 ) gas reservoir in Jiyang Depression

火山活动带来的幔源CO2和H2贡献了合成生烃机制；

Its mantle-derived CO2 and H2 contribute compound mechanism for hydrocarbon generation ;

Mn/Ca和Cd/Ca比值的正异常段反映三期（Q1，Q2，Q3）围区的火山活动影响。

Positive anomalous Mn / Ca and Cd / Ca reflect three periods of volcanic activity enclosed areas .

本文利用腾冲火山活动区及周围地区的地方震尾波资料，根据尾波散射理论，研究了火山地区及周围地区的地壳Q值。

Based on the theory of coda scattering , the authors have studied the crustal Q values around Tengchong and adjacent areas using the coda observed in Tengchong and nearby areas .

对于NCAR模式，如果强迫足够大，气候系统将会经历失控增暖。《失控的陪审团》简介但前两次突然变暖可能与火山活动沉寂有关。

The climate system , at least in the NCAR model , will suffer a runaway warming provided that forcing is sufficiently large .

典型的化石资料、区域地层对比以及较为精确的SHRIMP同位素测年资料为这一时期的火山活动建立起了较为精准的时间标尺。

Based on a typical fossil data , regional stratigraphic correlation , as well as more accurate information SHRIMP dating for the volcanic activity during this period to establish a more accurate time scale .

成矿前和成矿期的海底火山活动带来了Mn、Co、Ni、V等，藻礁捕获成矿元素形成地球化学异常和矿体。

Metallic substances , Mn , Co , Ni and V , were introduced in by the submarine volcanic activities before and during the metallizing phase , and the geochemical anomalies and ore bodies are produced by the metallogenic elements captured by algae reefs .

进一步研究发现，火山活动导致了古生态环境中As、Hg、S等有毒、有害元素异常的增高。热河生物群灾难事件的发生层位（如SYP1的39层）多是古生态环境的突变层位。

A comprehensive research confirms that the volcanic activity resulted in the high level of toxic element abnormal , such as As , Hg and S. The disaster beds of Jehol Biota correspond to the beds with paleo-environmental mutation .

该岛是法属波利尼西亚群岛中社会群岛链之一部分，火山活动可分三期：早期（1.71.3Ma），中期（1.30.6Ma）和晚期（0.60.3Ma）。

This island is one of Society Islands , French Polynesian Archipelago .

有关火山活动对降水的影响目前已有了一些研究，但由于降水序列中火山信号较弱，同时还有ENSO等其他因子的影响，客观地分辨出火山的影响较复杂，目前尚无一致结论。

The influence of volcanic eruptions on precipitation is relatively complex , and there is no consistent conclusion due to the weak volcanic signals in the precipitation series and the influence of other factors such as ENSO .

通过对黑龙江及呼伦贝尔盟地区晚中生代（J3～K1）大地构造背景、火山活动情况、地质和钻井资料等综合研究，提出断裂和火山活动是表征本区构造特征的两个重要方面。

Fault and volcanic activity are two important aspects in structure features of sedimentary basin in Late Mesozoic era according to the geotectonic background , volcanic activity and geological data of wells .

藏北高原的隆升与岩石圈地幔的拆离、地壳拉伸减薄及火山活动密切相关，由此推测藏北高原的主要隆升起始期为40Ma左右。

Therefore , the authors infer that the beginning of the main uplift of the northern plateau occurred at about 40 Ma ago .

合成孔径雷达干涉差分测量（D-InSAR）技术是近几年发展起来的新技术，主要用于地面沉降、山体滑坡、冰川移动、火山活动、地震等地表微小形变的监测。

Differential interferometry on Synthetic Aperture Radar ( D-InSAR ) technique , as a new ground monitoring technology , can be used for the monitorings of earthquake , volcanic activity , glacial drift , land subsidence , landslide and other small surface deformation .

侏罗纪末～早白垩世初的火山活动除有熔岩（146Ma，137Ma）喷出外，还发育有辉长岩侵入体（135Ma）和辉绿岩岩墙（129Ma）等次火山岩。

The Late Jurassic-Early Cretaceous activity produced basaltic and basaltic andesitic lavas ( 146Ma , 137Ma ), followed by gabbro intrusion ( 135Ma ) and aplite dyke ( 129Ma ) .

火山活动发生在印度-欧亚板块碰撞（50Ma左右）后形成的构造环境中，受陆内水平剪切-走滑断裂带控制。

The volcanic activities in the studied region occurred in the post-collision tectonic setting of Indian-Eurasia plate collision ( about 50 Ma ) and were controlled by intra-continental horizontal shear faults .

火山活动影响最显著的高度是平流层70hPa约15～22km高空，由此高度向上或向下，火山活动的影响都逐渐减小；

The influence of the volcanic activities is most notable at the stratosphere of 70 hPa about 15 ~ 22 km high . Above or below this height , the influence of volcanic activities decreases gradually .

菲律宾地震和火山活动研究概况

An outline of research on earthquakes and volcanism in the Philippines

这个地区几百万年来火山活动强烈。

For millions of years , the area was highly volcanic .

如果别处的火山活动启动也不要感到惊讶。

Do not be surprised if other volcanic activity commences elsewhere .

这些鱼的死亡与最近的火山活动无关。

The deaths are unrelated to recent activity in the volcano .

Ⅱ级为火山活动亚带；

The ⅱ grade be the second zone of volcanic activity ;

多期次火山活动形成的循环地热系统。

Geothermal convection system related to multiple episodes of volcanic activities .

广西东南及西南部中生代火山活动旋回划分

Division of Mesozoic volcanic cycle in Southeast and Southwest Guangxi

此火山口里有个显示残馀火山活动的内火山锥。

The crater in residual volcanic activity that the volcanic cone within .

赣南中生代火山活动时代及岩浆来源

The Mesozoic volcanic age and the source of magma in South Jiangxi