南沙群岛及其邻近海区第四纪气候演化的非线性特征

Li yuan; Luo Binjie; Meng Qianxiang; Li Zhiming

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Article Navigation > Acta Sedimentologica Sinica > 1996 > 14(3): 169-181

Li yuan, Luo Binjie, Meng Qianxiang, Li Zhiming. 南沙群岛及其邻近海区第四纪气候演化的非线性特征[J]. Acta Sedimentologica Sinica, 1996, 14(3): 169-181.

Citation:

Li yuan, Luo Binjie, Meng Qianxiang, Li Zhiming. 南沙群岛及其邻近海区第四纪气候演化的非线性特征[J]. Acta Sedimentologica Sinica, 1996, 14(3): 169-181.

南沙群岛及其邻近海区第四纪气候演化的非线性特征

1 Lanzhou Institute of Geology,Chinese Academy of Scineces 730000;
2 Lanzhou Party School, Lanzhou, Gansu Province, P.R.China 730000

Received Date: 1995-10-12

Abstract

南沙群岛及其邻近海区近１８.５万年以来气候与环境非线性研究表明曾发生三次明显气候转变，形成四个映射区。其中氧同位素第５期与第４期转变较明显，其次是氧同位素第６期与第５期的转变，最后是第３与第２期之间的变化，这与全球第四纪古气候研究结果是一致的，得到了氧同位素和古生物资料的进一步印证。半深海－深海海底沉积物有机质演化阶段在海进海退过程中表现出垂直分带和非线性变化。上陆坡以氧化堆积带为主，有机质供给多、但消耗迅速且水动力相对强；中陆坡为利于有机质保存的还原带；下陆坡为有机质缩合阶段，陆坡下缘－远洋为有机质沉降氧化带与沉积埋藏阶段的植烷形成带。这几个带在古气候、古海平面非线性变化中是沿海底向上或向下迁移的，其变化是非线性的。
- Non linear characteristics,
- Quaternary,
- Climate Evolution,

References

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南沙群岛及其邻近海区第四纪气候演化的非线性特征

1 Lanzhou Institute of Geology,Chinese Academy of Scineces 730000;

2 Lanzhou Party School, Lanzhou, Gansu Province, P.R.China 730000

Received Date: 1995-10-12

Key words:

Abstract:

南沙群岛及其邻近海区近１８.５万年以来气候与环境非线性研究表明曾发生三次明显气候转变，形成四个映射区。其中氧同位素第５期与第４期转变较明显，其次是氧同位素第６期与第５期的转变，最后是第３与第２期之间的变化，这与全球第四纪古气候研究结果是一致的，得到了氧同位素和古生物资料的进一步印证。半深海－深海海底沉积物有机质演化阶段在海进海退过程中表现出垂直分带和非线性变化。上陆坡以氧化堆积带为主，有机质供给多、但消耗迅速且水动力相对强；中陆坡为利于有机质保存的还原带；下陆坡为有机质缩合阶段，陆坡下缘－远洋为有机质沉降氧化带与沉积埋藏阶段的植烷形成带。这几个带在古气候、古海平面非线性变化中是沿海底向上或向下迁移的，其变化是非线性的。

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南沙群岛及其邻近海区第四纪气候演化的非线性特征

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