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。
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。
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。
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。
Almost all kinds of metamorphic rocks can be discovered here.
变质岩几乎所有类型的小构造，在这里都找得到。
Metamorphic - this means that an element is in transformation.
变质-这意味着一个元素在转变。
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。
Yunnan emerald deposit was found in (pre) Cambrian metamorphic rocks.
云南祖母绿矿床产于寒武系变质岩中。
Gneiss, a metamorphic rock, can be commonly found in Precambrian areas.
片麻岩，变质岩，可以发现，在常见的前寒武纪地区。
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。
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。
H-O isotopes constitute reflects the characteristics of magma flow and metamorphic water interfusion.
石英的氢氧同位素组成反映出岩浆流体与变质水混入溶液特征。
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。
All the evidences indicate Miyi Precambrian metamorphic rock series is a typical low pressure metamorphic terrain.
所有的证据表明该变质地体是一个典型的前寒武纪低压型前进变质地体。
Geologic situation, resources and exploitation condition of shanxi loulan Metamorphic Iron Ore Area were introduced.
介绍了山西岚娄变质铁矿区的地质情况、资源储量及开发现状。
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 metamorphic type can be further divided into two subtypes as regional dynamometamorphic and contact metamorphic ones.
变质型又可分为区域动力变质和接触变质交代两个亚型。
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。
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。
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