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The attributes of the Mesoproterozoic unconformities in the Yanliao rift trough
Author(s): 
Pages: 11-22
Year: Issue:  2
Journal: Sedimentary Geology and Tethyan Geology

Keyword:  燕辽裂陷槽中元古界不整合面海侵超覆构造抬升;
Abstract: 燕辽裂陷槽中元古代沉积层序中出现多个沉积间断和不整合面.本次研究对其中的5个不整合面进行野外考察,分析其地质特征并进行地层对比,最后判断其性质.大红峪组底部、高于庄组底部和杨庄组底部的不整合面是沉积属性,其中大红峪组底部不整合面是海侵超覆沉积的结果,高于庄组底部和杨庄组底部的不整合面由海平面升降变化所引起;铁岭组顶部和下马岭组顶部不整合面是构造属性,系大规模的抬升运动所造成.
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