| 中朝地台东北缘3km深度地震层析成像的地质解释 |
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| 引用本文： | 雷清清,卢造勋.中朝地台东北缘3km深度地震层析成像的地质解释[J].东北地震研究,1999,15(1):37-45. |
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| 作者姓名： | 雷清清 卢造勋 |
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| 作者单位： | [1]辽宁省工程地震勘测研究院 [2]辽宁省地震局 |
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| 摘 要： | 利用本区丰富的地质，人工地震探测资料，对３ｋｍ深度层析成象成果进行了分析对比，结果表明：（１）３Ｋｍ深度速度值与人工地震探测所获地震波速值吻合较好；（２）３ｋｍ深度速度分布与该深度处的岩石介质分布有较好的对应关系，高速区对应地层主要为太古界－下元古界变质岩和地槽区的古生界浅变质岩，低速区对应主要为中生界火山，碎屑岩，燕山期花岗岩体和盖层性质的中元古－古代界沉积岩。（３）层析成象结果可划分深度不同的
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| 关 键 词： | 地震层析成象 人工地震测深 地质解释 地震勘探 |
GEOLOGIC INTERPRETATION OF SEISMIC TOMOGRAPHIC IMAGE 3 KM DEPTH IN THE NORTHEAST EDGE OF SINO-KOREAN PLATFORM |
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| Lei Qingqing, Meng Buzai, Niu Xue.GEOLOGIC INTERPRETATION OF SEISMIC TOMOGRAPHIC IMAGE 3 KM DEPTH IN THE NORTHEAST EDGE OF SINO-KOREAN PLATFORM[J].Seismological Research of Northeast China,1999,15(1):37-45. |
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| Authors: | Lei Qingqing Meng Buzai Niu Xue |
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| Abstract: | Using rich geological and man-made seismic sounding data. the authors make a interpretationseismic tomographic image 3 km deep in the northeast edge of Sino-Korean platform. The results show that: 1. Thevelocity of 3km seismic tomographic image 3 km deep cosincide with the velocity of man-made seismic sounding.2. The velocity image of seismic tomographic inversion correspond good with the rock medium distribution at thesame depth : The high velocity area corresponds good with the medium distribution at same depth. The high velocityarea corrrespound with Archaeozoic-Lower Proterozoic Erathem metamorphic rocks and Palaeozoic Erathemmiddle-lower metamophic rocks of geosyncline. The Lower velocity area corresponds with Mesozoic Erathemvolcanic-clastic rock. Yanshanian Stage granite hody and Middle Proterozoic-Palaeozoic Erathem sedimentaryrocks as cover.3. The results of seismic tomographic image can provide basis for dividing rock unit of differentdepth and analysing a certain depth paleogeomophic face as wellas some structure unit. |
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| Keywords: | Seismic tomographic image Man-made seismic sounding Geologic interpretation |
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