分异作用

相反，w（SiO2）>54.4%的粗安岩、粗面岩和粗面英安岩可能来自陆壳或经历了壳内分异作用。

On the contrary , the trachytes and trachyandesites , with SiO_2 > 54.4 % , were likely to be resulted from the crust or related to intracrustal differentiation .

这是岩浆结晶分异作用的显著特征。

This is the role of magmatic differentiation salient features . 4 .

单个岩床的厚度在1－200m之间，较厚的岩床有明显的结晶分异作用。

The thickness of sill varies from 1m to 200m .

元素地球化学研究表明，该岩体略为富集LREE，Eu的亏损不明显，表明岩浆结晶分异作用较弱；

According to the element geochemistry , these mafic dykes are characterized by moderate LREE enrichment and no obvious Eu anomalies , which means the weak magmatic fractionation .

主量元素Harker图解表明，岩石成分变化与结晶分异作用无关，主要与岩浆起源有关。

Harker diagrams of major elements indicate that the changes of rock composition have nothing to do with the fractional crystallization , mainly with the origin of the magma .

这些过碱性花岗岩的岩浆分异作用很微弱，特征是稀土含量高。

These rocks are characterized by high abundances of REE .

结晶分异作用为花岗岩的主要成岩方式。

Crystallization differentiation for granite is the main diagenesis mode .

反映原始地貌要素保存程度的相分异作用；

Facies differentiation reflecting degree of original geomorphic elements ;

新城－黄陂走滑韧性剪切带的动力分异作用

Dynamic differentiation of XINCHENG-HUANGPI right-lateral ductile shear zone

变质分异作用中的质量迁移

Mass Transfer in Processes of Metamorphic Differentiation

近海砂矿主要是在海水动力条件下由于机械沉积分异作用，使陆源碎屑中的有用矿物富集而成的。

Offshore sand deposit is formed by concentration of useful minerals under sea dynamic condition .

在干热的气候条件下，变性土稀土元素较之沉积母岩分异作用不强烈。

Under dry and hot climate , REE fraction weakly in contrasting with parent sedimentary rocks .

结果表明，区内花岗质岩浆的演化受对流分异作用控制。

The results show that the evolvement of granitic magma is controlled by the convective fractionation .

重力流沉积的机械分异作用

Mechanical differentiation of gravity flow sedimentary

结晶分异作用中微量元素的行为以及熔体和固相成分的相互关系

Behaviours of trace elements and relationships between the compositions of solid phase and melt during crystallization differentiation

研究表明，伟晶岩存在局部岩浆分异作用，岩浆具不混溶性及非均匀性。

The existence of local magmatic differentiation , immiscibility and heterogeneity was proved for the pegmatite magmas .

地壳下部及上地幔物质分异作用对地震成因机制的影响

The influence of the differentiation of the upper mantle and the lower part of crust on the earthquake mechanism

它们很可能是由地壳硅铝层重熔的花岗岩浆经结晶分异作用而形成的。

It is most possible that the massifs are of magmatic origin from fractional crystallization of crust-remelted granitic magma .

侏罗纪为钾质碱性系列，古近纪为钙碱性系列，而且前者岩浆源较浅，岩浆分异作用差。

The Jurassic volcanic rocks are belong to K alkaline and came from shallow crust with weak repartition of magma .

这些特征表明，本区三类主体岩石为岩浆结晶分异作用的产物；

All these characteristics show that three kinds of main body rock in this area are the product of crystallization differentiation .

油气田中油气的分异作用&以塔里木盆地牙哈凝析油气田为例

Differentiation Process inside Oil and Gas Fields : Example from the Yaha Oil and Gas Condensate Field in the Tarim Basin

大庙式铁矿的形成与苏长质岩浆密切相关，但含矿物质不是来自于苏长质岩浆的分异作用，而是同时侵位的透岩浆流体。

Nevertheless , the ore-forming materials were derived from the concurrently emplaced transmagmatic fluids instead of from the noritic magma differentiation .

在海拔和年均温的基础上，坡度对植被类型面积分异作用最大。

Based on altitude and annual average temperature , slop gradient is the dominant ecological gradients to determine the vegetation area differentiation .

我们认为在岩浆房中曾经有结晶分异作用、岩浆液态化学扩散作用及岩浆对流作用。

We suggest that crystal fractionation process , chemical diffusion of liquid magma and their convection have occurred in the magma chamber .

同时由于注入气的重力分异作用，驱扫了顶部的剩余油。

Simultaneously , residual oil on the top is driven and swept due to the effect of gravitational differentiation of injected gas .

四川攀西地区新街岩体的岩浆分异作用与金属矿物的成因

The Magmatic Differentiation and The Origin of Metallic Minerals of The Xin Jie Basic and Ultrabasic Rocks in The Panzhihua-Xichang Area , Sichuan

通过对黑刺沟金矿田地球化学场的初步分析认为：黑刺沟金矿田金元素的强烈分异作用与区域性地质作用有关。

By analysis of the geochemical field of Heicigou gold ore field , the intensive differentiation of that corresponds with regional geological process .

这种云英质岩浆是在富氟、锂花岗质岩浆液态分异作用的基础上进一步演化形成的。

Preliminary study suggests that the greisen magma was formed by evolution of quasi-greisenic magmas resulting from liquid immiscibility of fluorine-and lithium-rich granitic magmas .

橄榄辉石岩包体为Ⅱ类包体，可能为杂岩体原始岩浆早期结晶分异作用所形成的堆积岩碎块。

Olivine-pyroxenites xenoliths belongs to ⅱ type of xenolith and the cumulate chunk maybe result from early crystallization differentiation of primary magma of the complex .

叙述了沉积分异作用不能反映沉积作用的全过程，还应当存在与之相反的沉积掺和作用。

This paper specifies the whole course that sediment cleavage function can not reflect sediment function , still exists sediment mixture function on the contrary .