南海北部V3孔的氧同位素曲线及其古环境的分析
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摘要: 根据分析数据,制作了南海北部V3孔的12×104a以来的氧同位素曲线,比较南海北部、加勒比海.赤道太平洋西部及红海海区晚更新世以来的氧同位素曲线,它们的型式基本相同,但南海北部的曲线,变化的幅度比较大,而且约4.1×104a与约2.3×104a的周期变化显示比较明显,说明冰期中南海与外洋水体交换较少,且受北方来的干、冷气流与东北季风漂流的影响较大.在南海北部的曲线中,个别点的变化比较特殊,它可能与浊流作用的干扰有关。
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