Diamonds, an occasional component of rare igneous rocks called lamproites and kimberlites, have never been dated satisfactorily.
钻石是稀有火成岩（称为煌斑岩和金伯利岩）中偶尔出现的一种成分，其年代测定方法从未令人满意。
This 28-km segment was blasted through weathered igneous rocks four years ago to provide a shorter route to the town of Weixi.
这段28公里长的公路是四年前通过爆破风化的火成岩而成的一条通往维西的捷径。
Daniels says Western Australia's metamorphic rocks contain more iron than the igneous rocks on the east coast, making some of the beaches a more orangey-red colour.
丹尼尔说澳大利亚西海岸的变质岩比东海岸的岩浆岩含铁成分高，因此沙滩呈现橙红色。
Such meteorites look like igneous rocks from earth-hence the belief that Vesta has a mantle.
这种陨石与地球上的火成岩相似—因此可以相信灶神星上有地幔存在。
In geology, igneous rocks were once hot liquid.
译在地质学中，火成岩曾是炽热的液体。
I wonder if there are further classifications of igneous rocks.
我想知道火成岩还有进一步的类型划分吗。
So eruption of volcanoes is one way of producing igneous rocks.
那么火山喷发是形成火山岩的一种方式罗。
The most common intrusive in the order of igneous rocks is granite.
在火成岩系列中最常见的侵入体是花岗岩。
Key points: texture, structure and classification of igneous rocks.
重点：岩浆岩的分类、结构和构造。
Describing igneous rocks with a high content of the alkali metal oxides.
描述有高含量碱金属氧化物的火成岩。
The activity of igneous rocks mainly concentrates in Neogene and Quaternary.
火成岩活动主要集中在晚第三纪和第四纪。
Is there any other way of producing igneous rocks besides the volcanic eruption?
除了火山喷发形成岩浆岩这一种方式外，还有其它方式吗？
These mountains are heavily forested, and mainly compose granite and other igneous rocks.
这些山是郁郁葱葱的，且主要由花岗岩和其他火成岩构成。
A variety of plagioclase feldspar found in igneous rocks and characterized by brilliant colors in some specimens.
一种斜长岩长石的变体，发现于火成岩中，某些样本中含有丰富绚烂的颜色。
Potassium-argon dating: Method for determining the age of igneous rocks based on the amount of argon-40 in the rock.
钾-氩年代测定法：根据岩石内氩-40的含量来测定火成岩形成年代的方法。
The high velocity and variable thickness of igneous rock impair the structural map of targets beneath igneous rocks.
火成岩速度很高，而且厚度是变化的，常常影响到它下面的构造成图精度。
Purpose to provide theoretical basis for exploring and developing those reservoirs related to igneous rocks in this area.
目的为该区勘探开发与火成岩相关的油气藏提供理论依据。
This paper studied the distribution of the igneous rocks and traps related to igneous rocks on seismic and geologic data.
综合地震资料和地质资料分析了平南地区火成岩体的时空分布特征，对与火成岩有关的圈闭作了比较详细的研究。
The author aimed at simply introducing the theoretical model in terms of mineralization related to the high-level igneous rocks.
本文的目的是以与高位火成岩相关的成矿作用为例，简要介绍透岩浆流体成矿作用理论模型。
Pertaining to minerals or igneous rocks composed of minerals that are rich in iron and magnesium, dense, and typically dark in color.
系指由富含铁和镁的矿物组成的矿物或火成岩，质地致密，并以暗色为特点。此术语来自于镁和铁二字。
The emphasis and difficulty is the development of carboniferous igneous rocks oil and gas in the belly of Junggar Basin in recent years.
近年来准噶尔盆地腹部油气开发的重点和难点是对石炭系火山岩的开发。
This paper presents the state of the art concerning the study of trace element abundances in igneous rocks, the existing problems and methodology.
本文讨论了微量元素丰度研究在国内外的现状、存在问题及解决途径。
Based on the research of mineralogy and petrology of the associations of igneous rocks, we can deduce the history of the evolution of the Panxi rift.
通过火成岩组合的矿物学、岩石学研究，可以推断攀西裂谷演化的历史。
Because of complex fracture system, faulted structures, and rich igneous rocks, SXF area is a representative low signal-to-noise ratio seismic data region in Subei basin.
苏北盆地的SXF地区是典型的低信噪比地震资料地区，断裂系统复杂，构造破碎，圈闭面积小，火成岩发育。
The degree of geological work and research for the deposit is quite low. The ore body is obviously controlled by basic igneous rocks of Wanbaogou group and structural faults.
该矿床地质工作及研究程度极低，铜钴矿体明显受万保沟群基性火山岩层位及断裂构造控制。
In study area, the igneous rocks consist of intrusive and volcanic rocks. the intrusive rock in this area are called Tanggula mountain rock which is part of Tanggula magmatic belt.
研究区内岩浆岩包括侵入岩与火山岩两部分，研究区内的侵入岩可统称为唐古拉山岩体，属区域上唐古拉岩浆岩带的组成部分。
For the oil and gas exploration in this area, therefore, the presence of igneous rocks may indicate that good reservoirs develop in nearby areas, and it can guide the exploration in this area.
勘探过程中，火成岩的出现可以预示附近地区良好储层的发育，为勘探油气起到了示踪作用。
For the oil and gas exploration in this area, therefore, the presence of igneous rocks may indicate that good reservoirs develop in nearby areas, and it can guide the exploration in this area.
勘探过程中，火成岩的出现可以预示附近地区良好储层的发育，为勘探油气起到了示踪作用。
应用推荐