论文部分内容阅读
通过参加国内铀系标准样鉴定结果表明,我所实验数据是可靠的。本文运用铀系法测年等资料研究认为:中更新世以来南海沉积物明显记录两次冰期(五次亚冰期)及间冰期和冰后期,其中以中晚玉木冰期为最冷,最热的为明德-里斯间冰期。南海沉积物的沉积速率为1.6—60mm/10~3a之间,一般地说,地形平坦的深海和地形较陡的陆坡沉积物的沉积速率较慢,约1.6mm/10~3a,而在地形较陡中出现平缓地形的海谷的顶部,则沉积速率较快,约在58—60mm/10~3a。南海锰结核的生长速率在3.5—4.7mm/10~6a
By participating in the national uranium standard sample identification results show that my experimental data is reliable. Based on the uranium dating data and other data, it is concluded that the sediments of the South China Sea have recorded two glacial (five sub-glacials) and two interglacials and two interglacials since the mid-Pleistocene. Among them, For Matilda - Rees interglacial period. The deposition rate of sediments in the South China Sea is between 1.6 and 60mm / 10 ~ 3a. Generally speaking, deposition rates of shallow terrain and steep slope sediments are relatively slow, about 1.6mm / 10 ~ 3a. Steep topography appears in the steep terrain, the deposition rate is faster, about 58-60mm / 10 ~ 3a. Nanhai manganese nodules growth rate of 3.5-4.7mm / 10 ~ 6a