查询词典 mantle rock

Until now, some studies showed that major source of ore-forming materials come from wall rock or upper mantle.

目前，有关研究认为此类矿床成矿物质主要来源于矿床的围岩或上地幔。

According to metamophic core complexes, syn-tectonic intrusive rock and its isotope dating data, divide Songliao basin evolution history into three stages: 1 orogenic period land-land collision; 2 post orogenic period mantle delamination, metamophic core complexes uplift and collapse extension; 3 weak extend stable depression in continent.

根据变质核杂岩、同构造侵入岩以及同位素年龄资料，将松辽盆地构造演化历史划分三个阶段：(1)造山期的陆—陆碰撞；2造山期后的地幔拆沉，变质核杂岩上拱和塌陷伸展断陷；(3)弱伸展稳定大陆内坳陷。

All of these characteristics indicate that the magma which produced the garnet clinopyroxenite was formed mainly by melting of the clinopyroxene from the mantle source with residual garnet. The phases of the rock before exhumation might have been clinopyroxene + garnet.

这些特点表明形成石榴单辉辉石岩的岩浆为地幔源区残留石榴石、主要熔出单斜辉石的高程度部分熔融的产物，折返前可能由单斜辉石＋石榴石相组成。

The crust-mantle background and space distribution of palaeogene source rock in the east of China,the tectonic background,sediment and basin environment,state of organic matter,abundance of organic matter and type of organic matter in source rocks and geothermal field characters are analyzed.

对我国东部下第三系源岩发育的壳幔背景及空间展布、源岩发育的构造背景、沉积和盆地环境、有机质赋存状态、有机质丰度、类型及地温场特征等方面的研究表明，秦岭-大别和郯庐断裂的生成演化是区内下第三系盆地发育的主要构造控制因素，渤海湾北东向裂谷型盆地规模大、切割深，有效烃源岩最为发育；南华北近东西向-北西西向断陷型盆地规模小、切割浅，有效烃源岩相对最不发育；而立交桥型的南襄盆地有效烃源岩发育程度介于两者之间。

On the basis of an integrated analysis of the geochemical features of these volcanic rock associations,this paper concludes that thebasalts originated mainly from interaction between mantle-derived magma and low-crustal materials, and rhyolitic volcanic rocks resulted from thermal and chemical interaction between basaltic magma and the upper part of crustal materials.Basalts and rhyolites in different cycles have different source regions,and they are products of multiperiodic pulsive layer partial melting.

根据对火山岩地球化学特征的综合分析表明，玄武岩主要为幔源岩浆与下部地壳岩石相互作用的产物，而流纹岩则为玄武岩浆与上部地壳物质进行热及成分交换的结果，不同旋回的玄武岩和流纹岩有不同的源区，为多次脉动分层部分熔融的产物。

The ultramafic rocks outcropped at the Altyn region are all harzburgites. Remant grains of primary minerals have melted residual texture and elastic deformation texture under high temperature and pressure. The whole-rock analyses show their low TiO〓 contents (0.01～0.04%), low Al, Ca and high MgO contents and wide Mg〓 range (89.35～95.57). Rare earth patterns have two types, namely tabacco pipe-shped and LREE-shaped, of which the former is often seen. The chondrite-nomalized Yb values of these analyses are all lower than 1. The spinels have low Ti and high Cr content and most spinels have Cr# higher than 60. All of the above characteristics show that the ultramafic rocks in the Altyn fault zone are components of metmorphic peridotites of ophiolite from depleted mantle source and most ophiolites from this zone belong to supra-subduction zone type ophiolite with a few mid-ocean ridge basalt type.

阿尔金露头区的超基性岩全为方辉橄榄岩，残余的新鲜矿物颗粒发育有熔融残余结构和高温高压下塑性变形结构，全岩分析显示样品TiO〓的含量低，为0.01～0.04％，具有低的Al和Ca，MgO含量高，Mg〓为89.35～95.57；稀土配分型式有两种，即烟斗型和LREE亏损型，前者占绝大多数，Yb球粒陨石标准化后的值全都小于1；尖晶石低Ti高Cr，大部分尖晶石的Cr〓大于60，上述特征说明阿尔金超基性岩是蛇绿岩的地幔橄榄岩成员，来自亏损的地幔源区，阿尔金蛇绿岩大多属于俯冲带之上型蛇绿岩，有少量的大洋中脊型蛇绿岩。

Sulfur and Oxygen Isotope in Sulfate ①δ~(34)S values of sulfate in karst water are close to those of evaporite gypsum found incarbonate rock area, which implies that sulfate in karst water comes from gypsum dissolution,not from mantle.

5氦同位素~3He／~4He比值及R／Ra比值的分析表明，岩溶热水的氦同位素主要为大气、壳源氦混合而成，无明显三元混合特征，指示了当地热水中不存在岩溶水与幔源热水的混合。

The outgas types and amount of different gas resource varied with the different geological conditions and evolution processes. There are four outgas models including the model in which inorganic gas directly overflows from mantle matter through lithospheric fracture,the model of heat flow piercement outgas,the model of volcano-magma outgas,and the model of carbonate rock outgas due to heat metamorphism.

对气藏成藏条件和深部壳幔结构的研究表明，松辽盆地存在多种类型无机&气源&，由于赋存的地质条件和演化过程不同，不同气源脱气的方式、脱出气体的类型、脱气量也大不相同，共有4种主要的模式：地幔物质沿超岩石圈断裂直接脱气模式；热流底辟体脱气模式；火山—岩浆成因模式；碳酸盐岩热变质成因模式。

Through the channel way of the connnection of the base of Xujiaweizi linked system of faults with partial chamber,the carbonate dioxide gas in the mantle\|derived heat flow diapris move up into appropriate volcanic rock encirclement along the faults, and form gas pool.

对芳深 9、芳深 7、芳深 6井的天然气组成及甲烷同位素分析表明，松辽盆地北部昌德CO2 气为幔源无机气，该CO2 气是以由徐家围子连锁断层系下延与局部岩浆房相接作为通道，幔源热流底辟体中的CO2 气顺断层上移至合适的火山岩圈闭中而成藏

Cu-Ni sulfided mine complex locate in BaimaZai of JinPing County is sub alkali iron-super iron, it"s zoning is clear and it"s Ni-Cu-Co melting first and enrichment, its rare earth is rich in right lean light rare earth, but Eu in olive rock is serious to be bad, Gd-Tb is tittles negative abnormity. Above-mentioned show that the mineral is cone from mantle, and didn t mix with crustal substance, and continent tholeiite magma turning into continent tholeiite emplacement after by surging.

金平白马寨铜镍硫化矿床杂岩体分带明显、属亚碱性铁质-超铁质岩、具Ni-Cu-Co三元素先熔离，后富集的规律、稀土配分为右倾斜轻稀土富集型，但橄榄岩铕亏损显著，Gd-Tb微小负异常，显示成矿物质来源地幔，与地壳物质无混染和大陆拉斑玄武岩浆上涌后变为大洋拉斑玄武岩浆侵位特点。

In her eyes, because that is the doorway toher heart * the place where love resides.

女人的漂亮必須從她的眼睛中去看，因為那是她心靈的窗戶和愛居住的地方

I will send some postcards to you.

我会向你发送一些明信片。