钾质花岗岩
- 与 钾质花岗岩 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The intermediate-basic volcanic rocks with SiO2 content less than 57.48 wt% are high in Al2O3(20.22-16.34 wt%) and K2O, enriched in large ion lithophile elements, show obvious Nb, Ta negative anomaly, these are same to the basalts which formed in island arc. The andesite, dacite and rhyolite rocks with SiO2 content between 62.11-75.19 wt%, are similar with the I-type granitic rocks formed in island arc in their geochemistry. It is suggested that the Jueluotage area of East Tianshan was in island arc setting during Late Carboniferous, when the subduction of the ancient Asian Ocean was in progress.
其中w(SiO2)小于57.48%的中基性火山岩具有高w(Al2O3)(16.34%~20.22%),较富钾,富集大离子亲石元素,具明显的Nb、Ta负异常;w(SiO2)介于62.11%~75.19%之间的安山岩、英安岩和流纹岩岩石化学特征与准铝质的Ⅰ型花岗质岩石相似,其地球化学特征也反映出岛弧花岗岩的特点,表明东天山觉罗塔格地区路白山一带在晚石炭世仍处于古亚洲洋向南俯冲的岛弧环境。
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The formation process of the rocks is divided for thefirst time into three cycles corresponding to J2, J3, and K1, respectively, and each cycle into early,middle, and late periods based on intruding contact relationship among different types ofgranitoids.3. A detailed study on the petrological characteristics of different cycles of theMesozoic granitoids supports classification of the rocks into three lithological associationsincluding A-type, high-K calc-alkaline, and calc-alkaline granitoids, of which the first associationbelongs to alkaline series, and the others belong to calc-alkaline series. It is shown that thelithologies change from diorite, quartz monzonite, and granodiorite to monzonitic graniteand syenogranite with periods from early to late in each cycle.4. A preliminary summarization hasbeen made on the evolution characteristics of the rocks.
首次将中生代花岗岩类划分为J2旋回、J3旋回、K1旋回等三个旋回,并依据不同岩石类型间的侵入接触关系,将每个旋回又划分为早、中、晚三期。3、在详细研究区内中生代不同时期花岗岩类岩石特征的基础上,首次将区内中生代花岗岩类划分为碱性系列碱质A型花岗岩类以及钙碱性系列高钾钙碱性花岗岩类和钙碱性花岗岩类等二个系列三种岩石组合类型,确定每个旋回从早期到晚期,岩石均具有从闪长岩、花岗闪长岩、石英二长岩-二长花岗岩-正长花岗岩演化的趋势。4、初步总结了区内中生代花岗岩类的演化特征。
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The original defined adakitesare sodium igneous rocks, they are tonalite, trondhjemite or (plagioclase-rich) granodiorite in whole-rock chemistry; however, the K-rich "C-type" adakite defined by Chinese scholars are potassic igneous rocks, they are granite, quartz monzonite and (alkali feldspar-rich) granodiorite, etc.
最初定义的埃达克岩是钠质火成岩,其全岩化学成分相当于英云闪长岩、奥长花岗岩和花岗闪长岩;而富钾的"C型埃达克岩"全岩化学成分相当于花岗岩、石英二长岩和花岗闪长岩。
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Being rich in potassium, alkali and calcium, this belt is a series of potassic and alkalic granitoids and belongs to A-type granites. However, this kind of A-type granitoids was not formed at the end of orogeny.
岩石地球化学研究显示,该岩带的各种岩石类型都具有富钾、富碱和富钙的特点,属于钾质碱性花岗岩类,可归属为A型花岗岩类。
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The rocks are potassium-high (K2O=4.10%~5.27%, 4.86% on average) and alkali-rich (Na2O+ K2O=7.12%~8.24%, 7.85% on average) ones, and have an average K2O/Na2O value of 1.63, ACNK values of 0.90~1.05 (0.96 on average) and KN/A values of 0.71~0.89 (0.78 on average), thus belonging to metaluminous to weakly peraluminous granitoids of shoshonite series and K-high calc-alkaline series.
岩石高钾、富碱,K2O含量为4.10%~5.27%,平均4.86%;Na2O+K2O为712%~8.24%,平均7.85%;K2O/Na2O值平均为163;ACNK值在0.90~1.05之间,平均为0.96;KN/A在0.71~0.89之间,平均为0.78,属钾玄岩系列与高钾钙碱性系列准铝质-弱过铝质花岗岩类。
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The original defined adakitesare sodium igneous rocks, they are tonalite, trondhjemite or (plagioclase-rich) granodiorite in whole-rock chemistry; however, the K-rich "C-type" adakite defined by Chinese scholars are potassic igneous rocks, they are granite, quartz monzonite and (alkali feldspar-rich) granodiorite, etc.
最初定义的埃达克岩是钠质火成岩,其全岩化学成分相当于英云闪长岩、奥长花岗岩和花岗闪长岩;而富钾的&C型埃达克岩&全岩化学成分相当于花岗岩、石英二长岩和花岗闪长岩。
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The experimental products include crystal phase quartz, feldspar (alkila-feldspar, albite, K-feldspar), zinnwaldite and topaz, a melt phase and a trace vapour. The solid products were been studied by optics method, electron microprobe and X-ray analysis. The results show that liquidus temperature raises slightly and solidus temperature falls down obviously and that the upper temperature limit raises for the stability field of quartz and topaz, and falls down for the stability field of alkila-feldspar as F contents in crease.
实验淬火产物包括结晶相石英,长石(碱性长石,钠长石、钾长石),铁锂云母和黄玉及玻璃相和微量流体,对固相淬火产物进行了系统和详细的显微观察及电子探针和x射线分析,研究了F对钠长花岗岩液、固相线温度、相关系和相组合的影响和含F钠长花岗岩的结晶序列和熔体演化、F在流体和熔体之间的分配及F对花岗质熔体结构的影响,对含黄玉矿物组合进行了一系列热力学矿物平衡计算,获得如下重要结论
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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。
- 推荐网络例句
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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.
另一方面,更重要的是由于城市住房是一种异质性产品。
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Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.
气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。
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You rap, you know we are not so good at rapping, huh?
你唱吧,你也知道我们并不那么擅长说唱,对吧?