岩浆

Tne spilite-quartz keratophyre are thought to most probably crystallize from basic and acidic magmas contaminated by the convective circulating hot brine on seafloor.

细碧岩-石英角斑岩建造很可能为基性及酸性岩浆受对流循环的海底热卤水一定的混染作用后结晶形成。

Finally, it can be concluded for the first time that there was a large time gap between diagentic process of the volcanic rocks related to the Dapingzhang VHMS deposit and the ore-forming process, then a ore-forming model of the Dapingzhang deposit can be made, that is, the deposit passed through two important stages: the ore-forming metals concentrated during formation of the Early Palaeozoic spilite-quartz keratophyre on the island-arc belt, and the mineralization caused by the Late Palaeozoic magmation.

最后，首次提出与块状硫化物矿床有关的火山岩成岩过程和成矿过程可以有较大的时间间隔。在此基础上建立了大平掌矿床的成矿模式，并认为成矿作用可能经历了两个重要阶段，即早古生代岛弧型细碧岩-石英角斑岩建造形成过程中成矿元素的初始富集和晚古生代岩浆活动最终导致成矿。

Most of zircon grains from lamprophyre have 206Pb/238U weighted average ages of 46.2±2.1Ma, representing the time of lamprophyre forming.

研究区辉绿玢岩锆石多数颗粒的206Pb/238U加权平均年龄为46.2±2.1Ma，代表了岩浆侵位结晶形成辉绿玢岩的年龄。

Type III is composed of latite and benmoreite, which are enriched in Al and Ti, with Na2O/K2O≥1.1 and no negative Eu anomaly (δEu=0.93–1.06), and Th/Ta and Ta/Hf ratios indicate a continental intraplate extensional environment. Its formation is probably related to underplating of basaltic magma.

第Ⅲ类由安粗岩，歪长粗面岩组成，富Ti，Al，Na2O/K2O≥1.1，Eu无异常(δEu=0.93～1.06)，Th/Ta，Ta/Hf值显示大陆板内伸展环境，其形成可能与玄武质岩浆的底侵作用有关。

The volcanic rocks consist of trachytic basalt, basaltic latite, latite and trachyte. The characteristics of this volcanic sequence are: low TiO2 and silica saturation, high alkalis, high K2O/Na2O value and Fe2O3/FeO value, high and variable Al2O3, enrichment in Rb, Sr, Ba, Zr, U, Th and LREE.

岩石硅近饱和，全碱含量（尤其是K2O）高，K2O／Na2O、Fe2O3／FeO比值大，Al2O3含量高且变化大，TiO2含量低，富集Rb、Sr、Ba、Zr、Th、U和LREE等元素，稀土配分为轻稀土富集型，锶、铅、氧等同位素显示了岩浆的幔源特征。

The results show that the cavities formed during the magmas intruding upwards and cooling prepared spaces for laumontite crystallization.

结果表明：岩浆上侵冷却过程中形成的孔洞为浊沸石的形成提供空间条件，在孔洞周围发育的微裂隙，有利于CO2等气体散失的同时，也为岩体中长石提供Ca(上标 2+)、Al(上标 3+)离子进入孔洞中提供通道。

Petrogenesis simulation indicates that the Tianheyong primitive basaltic magma may have been the product of polybaric melting column with nonmodal partial melting processes of enriched lherzolite, which straddle the boundary of garnetand spinelfacies lherzolite.

岩石成因模拟表明，形成天和永玄武岩的原生岩浆是在变压、部分熔融的条件下富集地幔源区岩石非实比熔融的产物，变压熔融柱穿切了Sp/Gt二辉橄榄岩相边界。

The implication,charters,studying method and important point of fluid,present situation offluid studying and its developing level at home and abroad,and important means of relation-ships of fluid with plate structure ,metamorphism,lithogenesis and mineralization have beenelaborated in the paper.

本文阐述了当今国内外流体的研究现状、发展水平、流体的涵义、性质、研究方法和研究重点及其与板块构造、变质作用、岩浆作用、成矿作用、成矿作用的重要意义。

Now, Sr isotopes can be used not only to constrain the origin and evolution of magma and hydrothermal ore-forming solutions, calculate the scale and degree of lithogenesis and ascertain the relations between fluids and rocks, but also to study sea-level fluctuation, plate movement, ocean-floor spreading and lithogenic evolution.

现在，锶同位素不仅在示踪岩浆及成矿热液的来源和演化、计算晚期成岩改造作用的规模和程度及流体/岩石比等方面已趋于成熟，并且越来越广泛运用于海平面变化、板块活动、海底扩张、成岩演化等方面的研究。

The ore-bearing fluid of the Dabaoshan deposit is related to magmatic thermal dynamic process, and volcanogene hydrothermal sedimentary polymetallic deposit on seabed was formed. The Fankou Ore-bearing fluid is related to circulation hydrothermal in deep formation, and middle-lower temperature Pb-Zn-Ag-Hg polymetallic sedimentary deposit by sea-floor thermal spring and overflowing was formed. The Hongyan ore-bearing fluid is related to the compaction water that formed by the basin's lithogeny process, and low temperature and pyrite only was formed.

大宝山型流体与岩浆热动力作用有关，形成海底火山热液沉积多金属矿床；凡口型流体与深部建造的循环热液有关，形成中低温海底热泉喷溢沉积铅锌银汞矿床；红岩型流体与盆地成岩压实水有关，形成低温单一黄铁矿矿床。

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。