晚更新世以来内伶仃洋河口湾的地层层序和沉积演化
Marine Geology Frontiers(2015)
Abstract
通过对内伶仃洋河口湾22个钻孔沉积物的高分辨14C测年、古生物鉴定、沉积物粒度及地球化学分析,开展了晚更新世地层划分,探讨了晚更新世以来的沉积演化过程.内伶仃洋河口湾地层被含花斑黏土层的风化层隔开,划分为上下2组,侵蚀面上下分别为全新统和上更新统地层.受晚更新世以来2次海侵的影响,内伶仃洋河口湾沉积演化分成了6个阶段,详细阐述了每个阶段的气候变化、海平面波动、沉积特征和沉积过程.
MoreKey words
Lingdingyang Estuary,Late Quaternary,stratigraphic framework,sedimentary evolution
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