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- Xiaertai rock group,a set of metamorphic rock system in Xiaertai area,has experienced strong ductilebrittle deformation and then thermal contact metamorphism and dynamometamorphism in the late stage. 经原岩恢复可将下二台岩群分为三个岩组:盘岭岩组,黄顶子岩组及烧锅屯岩组,其原岩建造分别为火山岩建造、碳酸盐岩建造及碎屑岩建造。
- Types of metamorphic rocks: regional metamorphism, contact metamorphism and dynamic metamorphism. 变质岩类型:区域变质、接触变质和动力变质。
- Near the contact boundary there exists a kind of metamorphic rock known as hornfels. It is resulted from the contact metamorphism when magma comes in contact with the sedimentary rocks and heats and squeezes them. 在二者接触界线附近发育着一种叫角岩的变质岩,角岩的形成是由于岩浆人侵与周围沉积岩接触时所产生的热量和压力致使原岩发生变化而成。
- contact metamorphic rock 接触变质岩
- Metamorphic rock having porphyritic texture. 残斑岩具斑岩状结构的变质岩。
- Marble, a metamorphic rock, forms when limestone re-crystallizes. 大理岩,一种变质岩,在灰岩重结晶时形成。
- The Houdidong Au deposit occurred in the Permian, Kedao Formation contact zone between metamorphic rock series and Variscan gabbro body. 后底洞金矿床产于二叠纪柯岛组变质岩系与华力西期辉长岩体内外接触带。
- A thin, leaflike layer or stratum occurring especially in metamorphic rock. 叶形线薄的叶状地层,尤其出现于变质岩中
- The layered structure common to metamorphic rocks. 叶理象变质岩一样的岩石层状结构
- Hard metamorphic rock consists essentially of interlocking quartz crystals. 坚硬的变质岩,主要由嵌合的石英晶体组成。
- A thin,leaflike layer or stratum occurring especially in metamorphic rock. 叶形线薄的叶状地层,尤其出现于变质岩中
- Resembling metamorphic rock in consistency,texture,venation,color,or coldness. 与大理石相似的在硬度、质地、脉纹、色彩或冷度上象变质岩的
- Gneiss, a metamorphic rock, can be commonly found in Precambrian areas. 片麻岩,一种变质岩,通常在前寒武纪地层中出现。
- 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?
- The neo-Archean rocks possibly exist in Tieklik metamorphic rocks. 铁克力克可能有新太古代变质岩系的存在。
- A metamorphic rock,intermediate between shale and slate,that does not possess true slaty cleavage. 厚层泥岩一种变质岩,在页岩与板岩之间,不具备真正的板块解理
- A green, gray, or red metamorphic rock, similar to slate but often having a wavy surface and a distinctive micaceous luster. 千枚岩,硬绿泥石一种绿色、灰色或红色变质岩,与页岩相似,只是表面通常起伏不平,有明显的云母光泽
- The faults related to the gold deposits in the area often follow the contact between granites and metamorphic rocks of the Achaean Jiaodong Group. 本区内的金矿断裂构造即花岗岩与太古代胶东群变质岩呈构造接触带。
- Shagou deposit mainly lies in the metamorphic rock of Taihua Group,Archaeozoic erathem. 本矿床主要的赋矿地层为新太古界太华群高级变质岩。
- There is a complete metamorphic series of coal from lignite to meager coal in Wumuchang area,Yimin,the main metamorphism type is contact metamorphism of coal. 伊敏五牧场区存在着从褐煤到贫煤完整的变质系列,其主要煤变质类型为接触变质。