Igneous and metamorphic rocks are more compact, commonly crystalline, and rarely contain spaces between grains.
火成岩和变质岩比较致密，通常是结晶性的，颗粒之间很少有空隙。
Some very ancient sediments were no longer recognizable, having been converted to igneous and metamorphic rocks in the course of mountain building.
在造山的过程中，一些非常古老的沉积物已被转化为火成岩和变质岩，已经无法辨认了。
However, even igneous and metamorphic rocks may act as groundwater reservoirs if extensive fracturing occurs in such rocks and if the fracture system is interconnected.
然而，如果火成岩和变质岩中发生大规模的断裂，并且断裂系统相互连通，那么它们也可以作为地下水储集层。
The evaluating method of metamorphic rocks.
变质岩潜山储层评价方法；
Precambrian metamorphic rocks constituted the basin basement.
盆地的基底是前寒武系变质岩。
The low velocity layer possibly is formed by metamorphic water.
壳内低速层可能是由变质水造成的。
What kinds of regional metamorphic rocks are present in the area?
在这一地区有哪些种类的区域变质岩?。
At last, evolution of high pressure metamorphic belt is discussed.
最后讨论了本区高压变质带的成因演化。
This precious mineral is found as crystals within metamorphic rock.
我们可以在变质岩中发现这种珍贵矿物的结晶体。
The metamorphic petrology of eclogites from northern Dabie Mountains was performed.
研究了大别山北部榴辉岩的变质岩岩石学。
The decompressive metamorphic reactions are a type of important metamorphic reactions.
降压变质反应是一个重要的变质反应类型。
The metamorphic core complex is an important rheologic pattern of continental extension.
变质核杂岩是大陆流变伸展的重要表现形式。
Graphite, chlorite, talc, mica, garnet and staurolite are distinctive metamorphic minerals.
石墨、绿泥石、滑石、云母、石榴石及十字石都是典型的变质矿物。
Felsic gneiss is the most widely distributed rock type in Archean metamorphic complex areas.
长英质片麻岩是太古宙变质杂岩区最主要的岩石类型。
Both the eclogite and the felsic gneiss have not undergone the same high-pressure metamorphic event.
榴辉岩的主体围岩是长英质片麻岩，它与榴辉岩不是相同高压变质作用的产物。
The process of change from any previously existing rocks into metamorphic rocks is called metamorphism.
将原来岩石改变成为变质岩的这种作用称之为变质作用。
The compositions and formation history of basement metamorphic rocks are the key to understanding crust evolution.
基底变质岩的成分和形成时代对揭示地壳演化至关重要。
According to this analysis, an ideal model of geological evolution in a metamorphic -deformation cycle is suggested.
作者提出了一个变质地质体在一次变质—变形旋回中构造演化的理想模式。
Interpretation and evaluation for individual well reservoir in buried hill of Leng 124 metamorphic rock was satisfactory.
从而对冷124变质岩潜山单井储层进行了解释与评价，取得了满意效果。
The high grade metamorphic complexes in middle Hainan Island are composed of gneisses, migmatites, granulites and charnockites.
琼中地区存在由片麻岩、混合岩、麻粒岩和紫苏花岗岩组成的高级变质杂岩。
The supracrustal sequences in the dabie complex in northeastern hubei belongs to a late archean stratified metamorphic sequences.
鄂东北大别杂岩中的表壳岩系属于晚太古代层状变质岩系。
This deposit belongs to metamorphic sedimentary type which is controlled by iron-bearing sedimentary construction and metamorphism.
该矿床属于受含铁沉积建造及变质作用控制的变质沉积型矿床。
The Hengshan high-grade metamorphic terrain is one of the typical areas for the study of Early Precambrian metamorphic rocks in China.
恒山高级变质岩区是中国早前寒武纪变质岩研究的经典地区之一。
And clusters of water molecules within garnet are very important evidence of the existence of fluid during ultra-high pressure metamorphic process.
而石榴石中的水分子团为超高压变质过程中有流体存在提供了有力的证据。
And clusters of water molecules within garnet are very important evidence of the existence of fluid during ultra-high pressure metamorphic process.
而石榴石中的水分子团为超高压变质过程中有流体存在提供了有力的证据。
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