查询词典 igneous rock

When silica content reaches 45-53 %, basic rocks become the name of this type of igneous rock in which the gabbro is the typical intrusive rock which are composed of pyroxene and calcium plagioclase, whereas basalt is the equivalent extrusive rock.

当岩石中SiO2含量在45～53%之间时，称这类火成岩为基性岩。辉长岩就是这类岩石侵入岩的典型代表，其中矿物成分为辉石，钙长石，而基性的喷出岩则称之为玄武岩。

Gneiss is a typical metamorphic rock type, in which a sedimentary or igneous rock has been deeply buried and subjected to high temperatures and pressures.

片麻岩是一个典型的变质岩石类型，其中含有的火成岩或沉积岩受到深埋与高温和压力。

Crack is not only growing in sedimentary rock, but also in metamorphic rock and igneous rock.

裂缝不仅发育于沉积岩中，还发育于变质岩和火成岩中。

A change within an intrusive igneous rock caused by the assimilation of portions of the surrounding rock.

声纳揭示出在我们潜水器的周围是一片几英亩大的鹅卵石地。

Rock formed from molten matter is known as igneous, and geologists classify igneous rock by its texture.

岩石的形成来自熔化的物质被认为是火成的，地质学家分类火成岩通过它的结构。

In order to reconstruct the paleo-tectonic history,the ophiolite suite in combination with the arc igneous rock assemblage is necessary to be used and the cause of the compositional polarity for the arc igneous rocks is discussed.

指出由蛇绿岩套再造的古构造历史可能是残缺的，结合弧火成岩的厘定可在某些方面弥补这个不足，讨论了弧火成岩组成极性形成的可能原因。

Identification and forecasting for igneous rock is one hard problem of exploration activity, because it has extreme aeolotropism. By firstly synthetically utilizing seismic analysis, well logging restricted inversion, core well core and electric log analysis method and so on, the igneous rock reservoir of Gaoqing oilfield is effectively identified and divided into one to four four phases according to igneous rock erupting phase.

由于火成岩具有极强的非均质性，对其识别与预测是油气勘探的难题之一，首次综合使用地震分析、测井约束反演、取心井岩心与电测曲线分析等技术和方法，有效地识别了高青油田火成岩储集体，并根据火成岩喷发期次，将高青油田孔店组火成岩储集体分为1、2、3、4期。

So the seismic facies analysis method was used to classify the seismic facies of the igneous rock. The result shows that the igneous rock is characterized by slabby, bow, mushroom and moundy in profiles.

在英买力地区，火成岩与碳酸盐岩为共生状态，两种地层的速度十分接近，用常规速度分析方法难以将它们区分。

Tectonic condition is the key factor for igneous rock reservoir, which produce crack and improve reservoir character, abundant generating rock is the foundation for igneous rock reservoir, lithology condition is the important supplement for igneous rock reservoir, it is easy for trachyte to produce crack.

综合分析构造条件是火山岩成藏的关键，其产生的裂缝改善了火山岩储层的储集性能；充足的油源条件是火山岩成藏的基础；岩性条件是火山岩成藏的重要补充，即粗面岩容易在构造作用下形成构造裂缝，最终形成火山岩油气藏。

Igneous stratum can be divided into three belts, from east to west it lays igneous rock belt, transition rock belt and sedimentary rock belt, from lower to upper it lays tuff belt, trachyte belt and basalt belt.

研究发现火山岩系在横向和纵向上都可划分为三个带，横向由东到西为火山岩带、过渡带、正常沉积岩带，纵向自下至上分为凝灰岩带、粗面岩带、玄武岩带。

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。