摘要
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。5750a 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4650a B.P.与2600a B.P.,它们持续的时间较长,并且海面出现多次波动。目前已进入第5次海侵阶段,预计50年后海面可能上升15-20cm。
The sedimentary records and sea-level changes are studied at wells in Zhuhai city, Cuangdong province, financially supported by Guangdong Academy of Sciences. 4 periods of sea level-changes in this area during the historic time (7000a B. P.) are divided: the lst and the 2nd periods were single up-and-down motion, but the 3rd and the 4th periods were multi-motion. It is forcasted that the sea- level would rise 15-20cm in 50a, for it is on the up-state of the 5th period of sea-level change.
出处
《南海地质研究》
1996年第8期87-96,共10页
Gresearch of Eological South China Sea
基金
广东省科学基金
