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Magellan's images show a wide variety of interesting and unique features including pancake volcanoes which seem to be eruptions of very thick lava and coronae which seem to be collapsed domes over large magma chambers.

麦哲伦的图像显示各种有趣而独特的功能,包括煎饼火山这似乎是火山喷发的熔岩和非常厚coronae这似乎是倒塌的圆顶大岩浆分庭。

Underground volcanic magma and crustal movement in direct response to the surface.

火山是地下岩浆及地壳运动在地表的直接反应。

GroupⅠ, the peridotite inclusions with typical pyrolite textures (metamorphic and deformation textures);(2) GroupⅡ, the peridotite and olivine-pyroxenite inclusions with metamorphic and deformation textures and overlaid mineral reaction textures or relic magmatic crystalline textures or/and cumulate textures; and (3) GroupⅢ, the pyroxenite inclusions with crystalloblastic texture and cumulate textures.

深源岩石包体的岩相学表明,鲁西深源岩石包体具有三种结构类型:①具有典型地幔岩结构的橄榄岩类岩石包体;②具有变质变形结构,并叠加有矿物反应结构以及残留有岩浆结晶结构的橄榄岩、橄辉岩类岩石包体;③具有变晶结构或堆晶结构的辉石岩类包体。

The 43-57km lithospheric mantle could be consist of a suite of cumulates with crystalloblastic texture, cumulate texture and relic magmatic crystalline textures, such as orthopyroxenite, websterite, clinopyroxenite and olivine-pyroxenite. The lithospheric mantle of 43km to Moho discontinuity could be spinel harzbergite and minor spinel lherzolite, in which the spinel harzbergite and minor spinel lherzolite xenoliths are discoveried. The Moho in the region could be an transitional zone composed of cumulates in petrology.

它既包括了具变晶结构的斜方辉石岩、二辉石岩,又包括了具有残留岩浆结晶结构与堆积结构的橄辉岩和辉石岩;向上至莫霍面,应为尖晶石方辉橄榄岩,并有少量尖晶石二辉橄榄岩,本区发现的尖晶石二辉橄榄岩(T7-21)和尖晶石方辉橄榄岩(T35、T58)可能来自该层;本区莫霍面在岩石学上可能为一个由堆积岩组成的过渡带(3~5km)。

After analysis of hydrocarbon to different kinds of ore, rock and inclusion, it is discovered that organic materials had been more or less participated in the mineralization process of Au, Ag, Sn, Pb, Zn, Cu, Sb deposits (include some mid-high temperature deuteric hydrothermal deposits). At the same time, higher content of hydrocarbon has been well preserved to present, even more than tens thousands uμl/kg.

首次系统地对各类矿石、岩石、矿物气液包裹体等进行了烃类组分分析,结果发现,各种金、银、锡、铅、锌、铜、锑等金属矿床(包括岩浆期后中高温热液矿床)的成矿过程均不同程度地存在有机物的参与,至今仍存在很高的烃气含量,甚至高达几万μl/kg。

Typically occur within diamondiferous kimberlites and are used as mineralogic tracers in the search for diamond deposits by prospectors.

在这种火山岩浆的管道之一,通常是两种类型的特点,成为酷火成岩要么称为金伯利或者钾镁煌斑岩。

Dioritic magmatic enclaves have been discovered in the subvolcanic ring dikes for the first time by this study. These enclaves have typical back-vein and quenched margin where there are a lot of needle-like apatites.

首次在相山北部次火山岩岩墙中发现的辉石闪长质岩浆包体,具有典型的反向脉及淬冷边,其淬冷边内含有大量的针状磷灰石。

As for sulfur isotopic composition, the general feature of two types deposits is a single peak distribution. All δ〓s values of the ores are near zero. The difference of different deposits lies in that the δ〓s values (1. 8-5. 2‰) of LDT are of small positive value and are similar to that of the metamorphic rocks and dioritic porphyrites in the region while the δ〓s values of SDT are always near zero. Features above suggest that two types of deposits have closely genetic relationship to metamorphic and magmatic rocks.

硫同位素组成上,两类金矿床共同的特征是均具有明显的单峰塔式效应,且δ〓S值均位于0值附近不大的变化范围内;不同的是,近程式金矿的δ〓S平均值均接近于0,与该类金矿具密切成因联系的岩体的δ〓S值也接近于0值,而远程式金矿的δ〓S平均值均为小的正值,变化范围为1.8~5.2‰,区内太古代变质岩及矿区内闪长玢岩脉的全岩δ〓S值位于这一区间内,反映了远程式金矿床其成矿物质不仅来源于重熔岩浆,同时还可能部分来源于变质岩围岩。

It is suggested that the dioritic enclaves and their host granite were derived from the same parental magma that resulted from partial melting of the Neoprot-erozoic depleted-mantle-sourced juvenile crust.

综合岩石学、地球化学和同位素等方面的对比研究,笔者认为八大石闪长质包体属于同源包体,为寄主花岗岩同源母岩浆经结晶分异作用形成的早期产物

The dioritic enclaves and their host granite have positive in εNd(+4.15 and +3.06)values and relatively low (87Sr/86S r)i(0.70412 and 0.70475) with fairly similar model ages tDM(812 M and 944 Ma, respectively.

闪长质包体和寄主花岗岩具有正的εNd(+4.15和+3.06)、较低的(87Sr/86S r)i(0.70412和0.70475)和相近的模式年龄tDM(812 Ma和944 Ma),暗示其母岩浆来自新元古代时从亏损地幔分离出来的初生地壳源区。

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