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对南沙群岛永暑礁南永3井软体动物的丰度、营养结构、化学元素和堆积速率的定量分析表明,晚全新世永暑礁潟湖经历了数次相对开放与封闭、与外海交流时强时弱以及盐度多次显著变化的过程。与氧同位素和北半球晚全新世快速气候事件的进一步对比表明,晚全新世快速变化的气候事件也波及到南海,由此造成的潟湖水动力环境、古盐度和沉积速率的变化深刻地影响着软体动物的发育。基于软体动物的替代指标和氧同位素变化的综合分析,初步划分了晚全新世永暑礁潟湖7个变化阶段。
Quantitative analysis of mollusk abundance, nutrition structure, chemical elements and deposition rate of Nanyong 3 of the Yongshu reef in the Nansha Islands shows that the Yongshu reef lagoon in the Late Holocene experienced several times of relative opening and closing and strong exchanges with the open sea Weak and salinity many significant changes in the process. A further comparison with oxygen isotopes and late-stage Holocene rapid climatic events in the Northern Hemisphere shows that the late-Holocertur rapidly changing climate events also affected the South China Sea and the resulting changes in the hydrodynamic environment, paleosalinity and sedimentation rates of lagoons profoundly affected Mollusc development. Based on the comprehensive analysis of surrogate indices and oxygen isotopic variations of molluscs, seven stages of the Late Pleistocene Yongshuijiang Lagoon were divided.