Based on major and trace elements and isotope geochemical data, it is inferred that Sandouding suite is formed by magma melting of Late Archeozoic continent tholeiite source, and its geochemical variation is controlled by hornblende fractional crystallization. Besides fractional crystallization, the geochemical variation of Huanglingmiao suite is related to the mixing between dacitic magma and felsic magma. Dalaoling suite is probably derived from early Precambrian volcanics.

根據(jù)巖石化學(xué)和同位素組成推斷，三斗坪巖套的源巖主要是晚太古代大陸拉斑玄武巖欧美激情中文字幕第八页视频，母巖漿相當(dāng)于英安質(zhì)黄片免费区，巖套內(nèi)的成分變化主要受角閃石分離結(jié)晶作用控制；黃陵廟巖套除受分離結(jié)晶作用影響外精品国模一区二区，成分變化主要與英安質(zhì)母巖漿和某種長(zhǎng)英質(zhì)巖漿的混合有關(guān)欧美美女在线看；大老嶺巖套的源巖亦為早前寒武紀(jì)火山巖。

Also on the analysis of geochemical data, it is sugested that the composition of eclogite is not simple butacombination of terrestriaI tholeiite and basic volcanic tuff and marl.

同時(shí)根據(jù)地球化學(xué)資料等分析尤物在线草草一区二区，認(rèn)為榴輝巖的成分不是單一的能看的黄色网站福利，一部分為大陸拉斑玄武巖、一為基性的火山凝灰?guī)r和泥灰?guī)r国产黄色无码一级视频。

On the basis of the study on the petrology, Trace element, and isotopic geochemistry, the primary magma of volcanic rocks can be divided into two series according to their originated rocks and degree of partial melting. One is the basanite-alkaline basalt-Olivine tholeiite magma series, which are generated by partial melting from spinel Iherzolite; the other is nephelinite magma-alkaline picritic basalt magma, which are generated by partial melting of the garnet Iherzolite.

巖石化學(xué)www.yazhouav、微量元素、同位素地球化學(xué)證據(jù)都表明99r热，華北人人操人人舔久久舔、華南地區(qū)的火山巖根據(jù)源巖和局部熔融程度的不同，可以分為兩個(gè)原生巖漿系列：一個(gè)是源巖為尖晶石二輝橄欖巖美女视频黄都是全免费的色欲，隨著局部熔融程度的增加啊～好痛别进去了啊视频，形成的碧玄巖巖漿-堿性玄武巖巖漿-橄欖拉斑玄武巖巖漿；另一個(gè)是源巖為石榴石二輝橄欖巖888888.网站男人的天堂，隨著局部熔融程度的增加形成的霞石巖巖漿-堿性苦橄玄武巖系列国产日韩91。

They have distinctive compositions, and display the compositional trends: from Mg and Ca-enrichment towards Fe-enrichment from big phenocryst—the core of small phenocryst—the rim of small phenocryst and microcrystals, typical characterisitc of tholeiite series.

這三種類(lèi)型的輝石在成分上有明顯的差異，從大斑晶輝石—小斑晶輝石核部—小斑晶輝石邊部和基質(zhì)輝石成年女人一级毛片免费看，成分由富鎂高清免费91黄色视频日韩A级片、鈣向富鐵方向演化，顯示出拉斑玄武系列的特點(diǎn)。

In this paper, the petrology, mineralogy and geochemistry of basic-ultrabasic volcanic rock, granite and skarn related to the Sn-Cu skarn-type ore and the vein-type ore in Laochang ore field have been researched systematically, some conclusions are summarized as follows:In Gejiu tin-polymetallic district, the middle Triassic volcanic rocks belonging to calc-alkaline basalt-tholeiite serie, mainly consist of pyroxene, hornblende, feldspar, chlorite and phlogopite; All the granites are peraluminous granites related to the Yanshanian collision-orogeny. Laoka granite closely related to the tin-polymetallic deposits emplaced in the post- orogenic.The metal elements show obviously vertical zones with the variety of skarn types in dimensional extension; The occurrence of garnet skarn and diopside skarn alternately developed in the horizontal zones of the contact between granite and carbonatite are mainly related to two factors: one factor is the infiltration metasomatism of post-magmatic hydrothermal solution, the another is the metrical strata of marble and calcic-dolomite developed in country rocks.

本文重點(diǎn)以老廠(chǎng)礦田中的接觸帶錫銅礦床和脈狀礦床為研究對(duì)象东北老妓女叫床粗话对白，采用化學(xué)分析午夜催催精免费福利视频、ICP-MS、X射線(xiàn)粉晶衍射分析亚洲中文字幕超碰无码资源、電子探針等測(cè)試手段99黄色视频在线观看高清资源在线观看，對(duì)本區(qū)與成礦相關(guān)的基性-超基性火山巖、花崗巖亚洲国产三级视频免费看、夕卡巖精品丝袜国产自在线拍Av、電氣石-石榴石等進(jìn)行了系統(tǒng)的地質(zhì)地球化學(xué)研究，研究表明：個(gè)舊礦區(qū)中三疊紀(jì)個(gè)舊組地層中的火山巖為鈣堿性玄武巖-拉斑玄武巖系列欧美无遮挡一区二区三区，巖石為輝石-角閃石-長(zhǎng)石-綠泥石-金云母組合男人天堂网站；本區(qū)的花崗巖為過(guò)鋁質(zhì)花崗巖，主要與燕山期碰撞造山作用有關(guān)欧美色图亚洲热图一区二区，錫多金屬成礦與形成時(shí)代最晚免费人妻无码不卡中文视频、分異較好的花崗巖關(guān)系密切；本區(qū)夕卡巖中的有用共生組份隨著夕卡巖類(lèi)型及其礦物組合的不同具有明顯的分帶性欧美国产地址。

The geochemical characteristics of basic to intermediate-basic igneous rocks indicate that they belong to a tholeiite suite. Their chondrite-normalized REE patterns are of nearly flat and slightly LREE-enriched type, and their primitive mantle-normalized and MORB-normalized trace element spidergrams are generally similar; the LILEs Cs, Ba, Sr, Th and U are enriched, while Rb and K and the HFSEs Nb, P, Zr, Sm, Ti and Y are depleted. All these show comagmatic evolutionary and genetic characteristics.

基性—中基性巖漿巖的地球化學(xué)特征表明其屬于拉斑玄武巖系列，稀土元素分布型式呈REE近平坦型—LREE輕微富集型真人无码A级毛片免费久久，微量元素原始地幔標(biāo)準(zhǔn)化的蛛網(wǎng)圖和MORB標(biāo)準(zhǔn)化蛛網(wǎng)圖上的分布型式總體很相似迷奷漂亮的女教师AV在线播放，富集大離子親石元素Cs，Ba特级黄色视频毛片，Sr18禁啪啪丝袜福利网，Th，U而相對(duì)虧損Rb久久久久久久黄色网站，K和高場(chǎng)強(qiáng)元素Nb久久一区精品网站，P，Zr欧美美女A片一级， Sm蜜月aⅴ，Ti和Y，顯示同源巖漿演化成因特征6080国产午夜精品。

The PGE distributive patterns are the PtPd type, the Pt/Pd ratios of 0.32-0.68 are between the values of enriched sulfide tholeiite (0.38) and primitive upper mantle (1.36), and the similarity of partition patterns of chondritenormalized REE, MORB-normalized trace element and primitive mantle normalized PGE for the rocks of the three phase zones, indicate the Baimazhai intrusive body I formed by the evolution, liquation, intrusion and diagenesismetallogenesis of basaltic magma.

鉑族元素配分模式為Pt-Pd型66J836影院，w/w比值為0.32~0.68，介于富硫化物拉斑玄武巖(0.38)和原始上地幔(1.36)之間免费乱操视频，以及稀土元素配分模式国产特黄A片AAA免费看、微量元素蛛網(wǎng)圖和鉑族元素配分模式中不同巖石配分曲線(xiàn)的相似性揭示3個(gè)相帶不同巖石之間的高度一致性，展示基性-超基性巖形成于玄武質(zhì)巖漿演化国产免费黄色、熔離及巖漿一次性侵入欧美热精品视频在线播放、分異成巖成礦的特征。

The compositions of major elements from the rocks are consistent with those of basalt and have evolutional current of tholeiite.

巖石的主量元素組成和玄武巖一致，并且具有拉斑玄武巖演化趨勢(shì)亚洲色视频A片。

Metabasic volcanic rocks are a transitional type between island-arc tholeiite and mid-oceanic tholeiite.

而變質(zhì)基性火山巖屬于島弧拉斑玄武巖與大洋拉斑玄武巖的過(guò)渡類(lèi)型欧美性爱黄页，它們形成于拉張盆地。

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.

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