Abstract Through the comprehensive analyses on chronostratigraphy, sedimentology, and paleoenvironmentology of the Quaternary bore (XZK169) in Hangzhou Bay, it is proposed that the Holocene sedimentation began from the depth of 17.35 m (about 10-9 ka B P) , and the strata below this level to the depth of 86.4 m belong to the Late Pleistocene In the profile, three cycles of transgression regression can be recognized In the early period of Late Pleistocene, mainly continental sediments were developed, river-lacustrine facies, lagoon-lacustrine facies, river lacustrine facies respectively appeared, and the paleoclimate changed from temperament cool arid, warm and moist, to temperament cool arid In the mid ate period of Late Pleistocene, river lacustrine facies, tidal flat and lagoon facies, shallow marine facies, estuary facies appeared and the paleoclimate changed from temperament cool arid, cold and arid, temperament cool, warm hot and moist, to warm and moist After the erosion during the last glaciation, shallow marine estuary facies appeared in the Holocene, and the paleoclimate changed from warm hot and moist, to warm and moist. The Hangzhou Bay separated from the Changjiang River mouth in around 5 ka B P.
About author: Wang Jianhua, graduated from Sun Yat-sen University in 1982, obtained his doctoral degree from Perpignan University (France) in 1986. Now, he is a professor at Sun Yat-sen University, and is engaged in sedimentology and paleoenvironmentology.
Cite this article:
Wang Jianhua,Zhou Yang,Zheng Zhuo et al. Late Quaternary sediments and paleoenvironmental evolution in Hangzhou Bay[J]. JOPC, 2006, 8(4): 551-558.
Wang Jianhua,Zhou Yang,Zheng Zhuo et al. Late Quaternary sediments and paleoenvironmental evolution in Hangzhou Bay[J]. JOPC, 2006, 8(4): 551-558.
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