广东省珠海地区钻孔剖面的沉积物,通过实验测试和分析研究,表明本区历史时期有4次海侵。第1次海侵发生于7500a B P,最高海面可能高于现今海面1m左右。5750 a B P发生第2次海侵,来势迅猛,当时的海面可能高于现今海面4m左右。第3、4次海侵分别发生于4650 a B P与2600 a B P,它们持续的时间较大,并且海面出现多次波动。目前已进入第5次海侵 Drilling section sediments in Zhuhai, Guangdong Province, through experimental testing and analysis, show that there are 4 transgressions during the historical period in this area. The first transgression occurred at 7500a B P, and the highest sea level may be about 1m above sea level today. The second transgression occurred at 5750 a B P, and the sea level at that time was probably 4 m above sea level. The third and the fourth transgressions occurred at 4650 a B P and 2600 a B P, respectively, which lasted longer and the sea surface experienced multiple fluctuations. Has now entered the fifth transgression