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- Contact relation of subaqueous volcanic rocks and underlying strata is conformity, disconformity or erosion. 与下伏地层呈整合、假整合或侵性接触;
- Typical characteristics of subaerial volcanic rocks include rhyolitic structure, culurrinar joints car bonized wood/silicified wood, angular unconformity contact with underlying strata. 其陆上喷发火山岩的典型标志为流纹构造、柱状节理,含炭化木/硅化木,与下伏地层呈角度不整合接触。
- The subaerial and subaqueous volcanic rocks have significant differences in lithology, texture and structure, alteration, occurence, contact with underlying strata, pore and fissure development. 摘要陆上与水下喷发火山岩在岩性、结构构造、蚀变特征、产状、与下伏地层接触关系、孔隙和裂缝发育特点等6方面有显著区别。
- The igneous rock destructs the wave groups on both sides of the fault and the seismic response characteristics underlying strata, having a negative effect on the interpretation of seismic data. 火成岩的存在破坏了断层两侧的波组关系及下伏地层的反射特征,影响了地震资料的解释精度。
- run water over the ground to erode (soil), revealing the underlying strata and valuable minerals; in mining. 用水冲洗矿物将较轻物质除掉。
- Impact of Complex Structures on Seismic Wave Dynamics Characteristics in Underlying Strata 复杂构造对下伏地层地震波动力学特征的影响
- Geological meaning of unconformility of dip between the Lower Carboniferous strata and its underlying strata 天山地区下石炭统与下伏地层角度不整合接触的地质意义
- The story has an underlying theme. 这故事有一个内在的主题。
- The Application of the Method of Magnetic Susceptibility to Prospecting the Recent Underlying Stratum in the Lower Yellow River Reaches 用磁化率方法研究近代河床沉积起始界面
- Discussion of the calculation formula about superimposed load of the soft underlying stratum in the group pile foundations 桩基础软弱下卧层验算模型的探讨
- Upward pressure from underlying magma domes the surface. 地下岩浆的向上推力使地面成圆顶形。
- underlying strata. 下层
- We can follow the history of life through the strata. 我们可以通过这一层层的地层跟踪生命的历史。
- The mass of rock underlying a mineral deposit in a mine. 矿藏底石位于一个矿中金属矿藏之下的大量石头
- The underlying reason for the failure remains unknown. 失败的根本原因尚未搞清。
- The social problems underlying these crises remain unsolved. 引起这些危机的社会问题尚未解决。
- underlying strata 底板岩石
- They represent each society stratum. 他们代表各个社会阶层。
- The older strata gradually disintegrate. 较老的岩层渐渐风化。
- The older strata gradually disintegrated. 年代较久的地层逐渐崩解了。