河南登封-鲁山地区地壳出露剖面岩石高压条件下地震波速特征的实验研究  

Experimental Study under High Pressure Condition on Elastic Wave Velocities in Rocks from Crustal Exposed Section in Denfeng-Lushan Region, Henan Province

作　　者：刘庆生[1] 高山[2] 候渭 张月明[3] 徐惠刚[3] 郭捷[3] 

机构地区：[1]中国地质大学应用地球物理系,武汉430074 [2]中国地质大学地球化学系,武汉430074 [3]中国科学院地球化学研究所,贵阳550002

出　　处：《地球科学（中国地质大学学报）》1994年第1期109-112,共4页Earth Science-Journal of China University of Geosciences

基　　金：国家自然科学基金资助项目

摘　　要：首次给出了河南登封—鲁山一带地壳出露剖面岩石高压条件下纵波速度V_p值的实验测定结果。样品分别采自古元古代的安沟群及新太古代的登封群和太华群。静态压力自常压至3000MPa变化。结果表明,岩石的纵波速与岩性关系密切。上、中地壳岩石的V_p 随压力的增加变化范围明显大于下地壳岩石,变质等级的增加伴随着V_p的明显增大,经温度影响校正后的V_p值与位于邻近地区的QB-1地震测深剖面的解释结果吻合很好。The experimental study with room pressure to 3000MPa on Vp in rocks, sampled respectively from the Early Proterozoic Angou Group and the Archean Taihua Group in the exposed crustal section in Denfeng-Lushan region, Henan Province, indicates a close relation between the seismic velocity and the lithology. With the pressure increasing, the Vp in rocks from the imddle-upper crust increases more greatly than the Vp in the lower crustal rocks, and the increasing metamorphic grade also raises the Vp.The Vp values corrected by temperture effect is well coincident with the Vp values interpreted from the QB-1 profile in the vicinity of section.

关 键 词：地壳剖面 高压 地震波 岩石 速度 

分 类 号：P315.8[天文地球—地震学]