火成岩

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。

A method to delete multiple reflection s with high fidelity and its application in offshore seismic data processing;2. There are several factors that affect seismic data quality in the past years, such as multiple reflection s, shielding of the .

影响潮汕坳陷历年所采集的地震资料品质的主要因素有多次波、海底地形和礁体屏蔽、火成岩体干扰、不合理的采集参数以及不完善的资料处理手段等。

Any of a group of igneous rocks composed mainly of olivine and various pyroxenes and having a granitelike texture.

最常见的凝固火山岩，是一种致密的深灰色火成岩，纹理细密，主要由富钙的斜长石和辉石组成。

A brown or yellow-green olivine found in igneous and metamorphic rocks and used as a gemstone.

一种褐色或黄绿色的橄榄石，见于火成岩和变质岩中，用作宝石。

A fine-grained, light-colored granitic rock consisting primarily of orthoclase and quartz.

二长岩一种主要由斜长石和正长石组成的火成岩，还含有少量其它矿物

Cooled pahoehoe Hawaiian lava solidifies into igneous rock with a ropelike pattern.

水冷式pahoehoe夏威夷火山熔岩凝固成火成岩与ropelike格局。

Pegmatite is a kind of giant grain or coarse-grained structure of the igneous rock, Changcheng vein of output, and the distribution of clusters.

伟晶岩是一种具有巨粒或粗粒结构的火成岩，常呈脉状产出，并成群分布。

The magmatism of Permian large igneous province is a very significant thermotectonic event in process of evolution of Tarim basin.

塔里木盆地二叠纪大火成岩省岩浆作用是盆地演化历史当中一次非常重要的构造热事件。

Keywords: Emeishan large igneous province; picrite; geochemistry; mantle plume; petrogenesis

中文关键词：峨眉山大火成岩省；苦橄岩；地球化学；地幔柱；岩石成因

The branch of petrology that deals with the origin of rocks, especially igneous rocks.

岩石成因说，岩石发展学研究岩石成因的岩石学的一个分支，尤其是火成岩的成因

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。