晚更新世珠江口埋藏古河道沉积过程研究
LATE PLEISTOCENE BURIED PALEO-CHANNEL SEDIMENTARY HISTORY IN THE PEARL RIVER ESTUARY
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摘要: 不断增长的经济发展需求使得在珠江口区域积累的物探、工程资料越来越多,这为研究珠江口埋藏古河道提供了可能。本文利用收集到的近2000 km的高分辨率浅地震资料,结合钻孔资料及测年数据,分析了珠江口区域晚更新世以来埋藏古河道的形迹、分布状况、沉积环境,并根据埋藏古河道的形态特征,对珠江河口地区古河流形态进行了恢复。Abstract: More and more geophysical and borehole data accumulated in the Pearl River Estuary with the economic development which offer the possibilities to rebuilt the sedimentary history of the paleo-channels since Late Pleistocene. The paper analysis the shape, distribution and sedimentary environment of the paleo-channels in the Pearl River Estuary based on 2000 km high resolution shallow seismic profiles combine with borehole and chronology data, a paleo Pearl River pattern was rebuilt since Late Pleistocene in today's estuary.