根据长江三角洲顶部镇江地区钻孔岩蕊的研究,全新世海水影响该地的时间为距今9000—6300年间,当时海面分別位于吴淞零点以下10—12米;2—3米。6300年以来镇江钻孔所在地区沉积淡水沼泽沉积,因此,5000—6000年前长江三角洲地区似无高于现今的海平面。 According to the study of borehole cores in the Zhenjiang area at the top of the Yangtze River Delta, the time of the Holocene seawater impacting the site was between 9,000 and 6,300 years ago, when the sea surface was respectively 10-12 meters below the Wusong zero point and 2-3 meters. Sedimentary fresh-water marsh sediments have been deposited in the area where Zhenjiang bore holes since 6300, so the Yangtze River Delta region seems to be no higher than today’s sea level from 5000 to 6000 years ago.