依据多金属结核、铁锰结壳的记录 ,研究了太平洋海水结核结壳中锶、铅同位素的关系 ,结果表明 ,太平洋海水中锶同位素与铅同位素无明显的相关性。作者认为这是由于太平洋海水中锶、铅的滞留时间相差很大 ,达 4个数量级 ,锶同位素记录了 10 0 0 0 0 a至百万年时间尺度上全球性大洋范围内海水物质来源的变化 ,而铅同位素能在较小的时间尺度上反映局部的大洋海水物质来源的信号 ,是高分辨率的物源示踪剂 Based on the records of polymetallic nodules and ferromanganese crusts, the relationship between strontium and lead isotopes in Pacific seawater nodules was studied. The results show that there is no obvious correlation between strontium isotopes and lead isotopes in Pacific seawater. The authors believe this is due to the large difference in the residence time of strontium and lead in the Pacific Ocean of up to 4 orders of magnitude. Strontium isotopes record changes in the source of marine water in the global oceanic range from 10 000 to 100 million years , While Pb isotopes can reflect the signal of local marine source of oceanic water on a small time scale and are high-resolution source tracer