中朝地台东北缘及邻区岩石层壳幔结构比研究

Yun BAI, De-lu JIANG, Zao-xun LU

Journal of Changchun University of Science and Technology(2000)

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Abstract
基于中朝地台东北缘及邻区的综合地球物理资料,参考最新研究成果,编制了该区0.5°×0.5°壳-幔结构比值R等值线图,明确了该区R值分布与构造分区,表明R值变化特征与地震活动的关系:地壳、岩石层厚度分布与地震活动的强度、频度无确定性关系;R值梯度带即岩石层变形带,可作为构造分区的参考依据;高R值强转折梯度带很可能是岩石层的剧烈变形带,多对应于地震高强度、高频度活动区;R值可作为地震区划、地震危险性评定、潜在震源区划分的值得参考的量化依据.
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Key words
lithosphere,crust-mantle,sino-korean
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