查询词典 igneous rock

Acidic rocks have a silica content over 70 % Granite is the typical example of acidic intrusive igneous rock, which is composed mostly of potash feldspar, quartz and minor mica.

岩石中Si02含量大于70%时，称为酸性岩，花岗岩就是酸性侵入岩石的一个典型例子，它的矿物成分主要是钾长石、石英以及少量云母

A usually coarse-grained igneous rock composed chiefly of calcic plagioclase and pyroxene.

已经在地表凝固的火成岩；花岗岩、闪长岩或辉长岩的。

Rhyolite is an igneous rock, rich in silica.

流纹岩是火成岩，富有在硅土里。

The other igneous rock zone distributes in the spreading axis of the center of trough, which mainly makes of isolated benthonic volcanoes. The basement tectonics in the north of Okinawa Trough is concaved-protruded- concaved in EW direction.

研究表明，在海槽内部主要发育两条火山带，一条为著名的吐噶喇火山链，由一系列活动的或休眠的串珠状展布的活火山岛构成；另一条沿海槽中央张裂轴分布，主要由孤立的海底火山构成。

The research on stratigraphic correlation based on making stratigraphic Division with an important parameter well Bincan 1 in Haerbin-Suihua area by using regional label bed, lithologic character, electrical characteristics, palaeobiology and igneous rock ages shows that sedimentary Covers in this area have Mesozoic Erathem Cretaceous system Huoshiling formation, shahezi formation, yicheng formation, denglouku formation, quantou formation, qingshankou formation, nenjiang formation, Cenozoic Erathem Tertiary and Quaternary.

在运用区域标志层、岩性、电性、古生物和火成岩年龄等对哈尔滨—绥化地区宾县断陷第一口参数井宾参1井进行详细地层划分的基础上对本区进行了地层对比，研究表明本区沉积盖层自下而上发育中生界白垩系火石岭组、沙河子组、营城组、登娄库组、泉头组、青山口组及嫩江组，新生界第三系和第四系。

It is considered that the quartz vein has something to do with concealed igneous rock., and its forming is because of pneumatolytic hydrothermal upwelling from magma differentiation in the deep.

综合分析认为，该区石英脉与推测隐伏火成岩体紧密相关，深部岩浆分异后期的气成热液上涌是石英脉形成的主导因素。

A conspicuous, usually large, crystal embedded in porphyritic igneous rock .

基质斑岩中均匀的水晶质石基，其中嵌有大粒水晶

A conspicuous ,usually large,crystal embedded in porphyritic igneous rock.

象平常一样，年龄最老的女人打扮得最华丽，而最丑的女人最引人注目。

The successful application of this interp retation technique to the igneous rock reservoir in this area is based on an in -depth study of geologic regulations. The key to success is fully utilization o f v arious information from every well and using various methods to make comprehensi ve analyses and interpretation.

综合解释技术在孔南地区火成岩油藏研究中得以成功应用，其基础是对该区地质规律的深入认识，关键是要从井出发，充分利用多种信息、多种方法，进行综合分析和综合解释。

A dark-gray to black, fine-textured igneous rock composed mainly of feldspar and pyroxene and used for monuments and as crushed stone.

辉绿岩一种贝岩，颜色深灰至黑，带有细微网纹，主要由长石和辉石构成，用作纪念碑或碎石块

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。