岩浆

It is noted that the gradient of isolines of stresses varies greatly around they oungest Dayingshan-Maanshan volcanoes. The microseisms in this area are relatively frequent, which explain the magma is still active in the volcano.

值得注意的是在最年轻的打鹰山-马鞍山火山群周围地区的应力等值线梯度变化较为激烈，这一地区的微震活动也相对较为频繁，表明火山体内的岩浆系统仍在活动。

The results show that although the moon has mare lavas of widely varying compositions and ages, the bulk erupted between3.8 billion and three billion years ago.

结果指出，尽管月球月海岩浆有非常不同的组成和年龄，但大部份都在38~0亿年前爆发。

Elemental and isotopic data suggest that the chemical variations of the HT and LT lavas can not be explained by crystallization from a common parental magma.

元素和同位素数据表明，HT和LT熔岩的化学变异不是由一个共同母岩浆的结晶分异作用所产生。

Elemental and isotopic data suggest that the chemical variation of the mid-Neoproterozoic rift-related basic lavas in South China cannot be explained by crystallization from a common parental magma.

元素和同位素数据表明，华南新元古代中期裂谷基性熔岩的化学变化不是由一个共同的母岩浆结晶分异作用所产生。

Plate tectonics; ocean ridge; magmatism; ocean crust; lithosphere; Benioff Zone; Precambrian; seafloor magnetic lineations; mantle; basalt; transform fault; metamorphism; metamorphic facies; Strontium isotope; sulphide ore

关键词：板块构造；洋脊；岩浆作用；洋底壳；岩石圈；贝尼奥夫带；前寒武纪；海底磁性线壮构造；地幔；玄武岩；转换断层；变质作用；变质相；锶同位素；硫化矿

Long-living hydrothermal process is the force of ore-forming substance activiation , and continuous reforming activiations , including magma activiations and volcano activiations , are the base of hydrothermal process .

长期的热液活动是成矿物质活化、迁移的动力，而长期的地壳活化作用，包括岩浆活动和活山活动，是热液活动的基础。

Tectonic setting is neither important nor unique cause for controlling the basalt magma ingredients, though it can affect them.

摘 要：大地构造环境对玄武质岩浆成分有影响，但却不是主要的，更不是唯一的因素。

Up to date the reserves discovered at shallow targ ets has exceeded 70% of total in Bohai Sea.Neotectonismis chara cterized by:(1)different Q and N center of subsidence,and angular unconformity b etween Q and N;(2)basalt effusion and magma activities frequently;(3)regular dis tribution of earthquake center;(4)intensive later faults (15-2Ma)forming multit ude anticiline in Nm-Ng formations.

目前浅层的油气储量占总储量的70%以上，这是由于海域新构造运动控制了晚期成藏，表现为：第四纪沉降中心与Nm晚期沉降中心不吻合，使得Q与N之间地层呈角度不整合；玄武岩喷发及岩浆活动频繁；沿渤南及郯庐断裂带天然地震震中有规律分布，晚期(15～2Ma)断裂极其发育，在Nm—Ng组地层内形成众多的背斜圈闭。

The petrological study and studies in element and isotopic geochemistry indicate that the pluton belongs to high-potassium calc-alkaline I-type granite, whose magma came from basic basalt in the thicken crust bottom by partial melting, and are of syn-collisional features. The pluton provides a direct petrological evidence of the plate collision and amalgalation.

岩石学、元素和同位素地球化学研究表明，岩体属于高钾钙碱性Ⅰ型花岗岩，岩浆来源于加厚地壳底部基性玄武质岩石的部分熔融作用，属同碰撞型花岗岩，是板块碰撞拼合的直接岩浆岩证据。

Melt structure plays an important role in governing physical and thermodynamic characteristics of magmas.

熔体结构对岩浆的物理和热力学性质起着重要的制约作用。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。