长江中下游地区下蜀黄土磁化率曲线与环境变迁

张建军; 杨达源; 陈曰友; 李徐生; 蒋红俊

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长江中下游地区下蜀黄土磁化率曲线与环境变迁

张建军, 杨达源, 陈曰友, 李徐生, 蒋红俊

文章导航 > 沉积学报 > 2000 > 18(1): 18-21

张建军, 杨达源, 陈曰友, 李徐生, 蒋红俊. 长江中下游地区下蜀黄土磁化率曲线与环境变迁[J]. 沉积学报, 2000, 18(1): 18-21.

引用本文:

张建军, 杨达源, 陈曰友, 李徐生, 蒋红俊. 长江中下游地区下蜀黄土磁化率曲线与环境变迁[J]. 沉积学报, 2000, 18(1): 18-21.

ZHANG Jian jun, YANG Da yuan, CHEN Yue you, LI Xu sheng, JIANG Hong jun. Study on the Magnetic Susceptibility of the Xiashu Loess and the Paleoenvironment Changes in the Middle and Lower Changjiang River[J]. Acta Sedimentologica Sinica, 2000, 18(1): 18-21.

Citation:

张建军, 杨达源, 陈曰友, 李徐生, 蒋红俊. 长江中下游地区下蜀黄土磁化率曲线与环境变迁[J]. 沉积学报, 2000, 18(1): 18-21.

引用本文:

张建军, 杨达源, 陈曰友, 李徐生, 蒋红俊. 长江中下游地区下蜀黄土磁化率曲线与环境变迁[J]. 沉积学报, 2000, 18(1): 18-21.

Citation:

长江中下游地区下蜀黄土磁化率曲线与环境变迁

1.
南京大学大地海洋科学系南京 210093;
2.
江苏省镇江市勘察测绘院江苏镇江 212000

基金项目: 国家自然科学基金(批准号:49571071)；江苏省自然科学基金(BK:97219)

详细信息

作者简介:
张建军,男,1973年出生,硕士,自然地理学

中图分类号: P642.13⁺1

计量

文章访问数: 685
HTML全文浏览量: 22
PDF下载量: 414
被引次数: 0

Study on the Magnetic Susceptibility of the Xiashu Loess and the Paleoenvironment Changes in the Middle and Lower Changjiang River

1.
Department of Geology & Ocean Sciences, Nanjing University, Nanjing 210093;
2.
Zhenjiang Prospecting and Magpping Institute Zhenjiang Jiangsu 212000

摘要

摘要: 通过对镇江大港剖面地层结构和磁化率曲线特征的分析研究,以及与相邻地区风尘堆积研究成果的比较,认为长江中下游地区磁化率曲线的波动旋回很好的对应了黄土 -古土壤风尘堆积序列,记录着该区中更新世以来七次大的古气候冷暖旋回。古气候的旋回变化幅度较北方黄土区要小得多,冷期和暖期都存在着频繁的小尺度的气候冷暖波动,可与深海氧同位素曲线相比较但各地下蜀黄土沉积速率和沉积环境有一定的差异。
- 下蜀黄土 /
- 磁化率 /
- 古环境意义 /
- 长江中下游地区
Abstract: The stufy of loess-paleosol sequence reveals the magnetic susceptibility is of indexical significance in identifying loess-paleosol and their progression in the loess section,but also in simulating the changes of paleoenvironment.The magnetic susceptibility is also of indexical significance to Xiashu loess.Therefore,we gathered 595 sample blocks for the study in Zhenjiang Dagang section,which is located in the lower reaches of the Changjiang River. On the basis of systematic testing,we obtain a magnetic susceptibility curve of Dagang section.Compared with the other Xiashu Loess sections in this area,the magnetic suscreptibility curve of Xiashu Loess indicates that the loess-paleosol sequence of Dagang section represented 7 large climatic cycles since the Middle-Pleistocene.It is similar to that disclosed from the other Xiashu sections and the loess-paleosol sequence in north China,reflecting that the middle and lower Changjiang River regions have undergone the same course of the paleoclimate changes in the north China since the Middle-Pleistocene.Comparative study also demonstrates that the extent of the paleoclimate changes is much smaller than that in the loess area in north China.There are frequently minor undulations of climate in both the warm period and the cold period,comparable to the δ¹⁸O stage of deep sea.The study also found the sedimentation rate and the depositional environment of Xiashu Loess varied in different area in the middle and lower Changjiang River region. The study of the magnetic susceptibility curve indicates there were a small quantites of aeolian accumulation in the interglacial warm period. S₁ and S₂ in the magnetic susceptibility curve of Dagang section can be divided into S₁a, S₁b, S₁c and S₂a, S₂b, S₂c respectively. S₁a, S₁b and S₁c of S₁ correspond to 5a,5b and 5c of the δ¹⁸O stage of deep sea,supporting that the climate changes of the middle and lower Changjian River region are largely affected by the ocean. Climate changes of the middle and lower Changjiang River region are quite sensitive to global changes.
- Xiashu Loess /
- magnetic susceptibility /
- paleoenvironmental changes /
- Changjiang River region

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参考文献(13)

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[8]	杨达源,韩辉友等.安徽宣城地区中晚更新世风成堆积与环境变迁[J].海洋地质与第四纪地质.1991,11(2)：97～104
[9]	Kukla G, An Z S. Loess stratigraphy in central China[J]. Palaeography, Palaeoclimatology, Palaeoealogy, 1989, 72：203～225
[10]	郑洪汉,朱东和等.山东半岛及苏皖北部黄土地层年代学研究[J].海洋地质与第四纪地质,1994,14(1)：63～68
[11]	李徐生,杨达源等.皖南风尘堆积-古土壤序列磁化率初步研究[J].安徽师大学报(自然科学版),1998,21(1)：64～69
[12]	赵其国,杨浩.中国南方红土与第四纪环境变迁的初步研究[J].第四纪研究,1995,2：107～116
[13]	杨达源.中国东部的第四纪风尘堆积与季风变迁[J].第四纪研究,1991,4：354～359

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长江中下游地区下蜀黄土磁化率曲线与环境变迁

1. 南京大学大地海洋科学系南京 210093;

2. 江苏省镇江市勘察测绘院江苏镇江 212000

基金项目: 国家自然科学基金(批准号:49571071)；江苏省自然科学基金(BK:97219)

作者简介:
张建军,男,1973年出生,硕士,自然地理学

收稿日期: 1998-10-28
修回日期: 1999-04-02
刊出日期: 2000-03-10

中图分类号: P642.13⁺1

关键词:

下蜀黄土 /

磁化率 /

古环境意义 /

长江中下游地区

摘要: 通过对镇江大港剖面地层结构和磁化率曲线特征的分析研究,以及与相邻地区风尘堆积研究成果的比较,认为长江中下游地区磁化率曲线的波动旋回很好的对应了黄土 -古土壤风尘堆积序列,记录着该区中更新世以来七次大的古气候冷暖旋回。古气候的旋回变化幅度较北方黄土区要小得多,冷期和暖期都存在着频繁的小尺度的气候冷暖波动,可与深海氧同位素曲线相比较但各地下蜀黄土沉积速率和沉积环境有一定的差异。

English Abstract

Study on the Magnetic Susceptibility of the Xiashu Loess and the Paleoenvironment Changes in the Middle and Lower Changjiang River

1. Department of Geology & Ocean Sciences, Nanjing University, Nanjing 210093;

2. Zhenjiang Prospecting and Magpping Institute Zhenjiang Jiangsu 212000

Received Date: 1998-10-28
Rev Recd Date: 1999-04-02
Publish Date: 2000-03-10

Keywords:

Abstract: The stufy of loess-paleosol sequence reveals the magnetic susceptibility is of indexical significance in identifying loess-paleosol and their progression in the loess section,but also in simulating the changes of paleoenvironment.The magnetic susceptibility is also of indexical significance to Xiashu loess.Therefore,we gathered 595 sample blocks for the study in Zhenjiang Dagang section,which is located in the lower reaches of the Changjiang River. On the basis of systematic testing,we obtain a magnetic susceptibility curve of Dagang section.Compared with the other Xiashu Loess sections in this area,the magnetic suscreptibility curve of Xiashu Loess indicates that the loess-paleosol sequence of Dagang section represented 7 large climatic cycles since the Middle-Pleistocene.It is similar to that disclosed from the other Xiashu sections and the loess-paleosol sequence in north China,reflecting that the middle and lower Changjiang River regions have undergone the same course of the paleoclimate changes in the north China since the Middle-Pleistocene.Comparative study also demonstrates that the extent of the paleoclimate changes is much smaller than that in the loess area in north China.There are frequently minor undulations of climate in both the warm period and the cold period,comparable to the δ¹⁸O stage of deep sea.The study also found the sedimentation rate and the depositional environment of Xiashu Loess varied in different area in the middle and lower Changjiang River region. The study of the magnetic susceptibility curve indicates there were a small quantites of aeolian accumulation in the interglacial warm period. S₁ and S₂ in the magnetic susceptibility curve of Dagang section can be divided into S₁a, S₁b, S₁c and S₂a, S₂b, S₂c respectively. S₁a, S₁b and S₁c of S₁ correspond to 5a,5b and 5c of the δ¹⁸O stage of deep sea,supporting that the climate changes of the middle and lower Changjian River region are largely affected by the ocean. Climate changes of the middle and lower Changjiang River region are quite sensitive to global changes.

张建军, 杨达源, 陈曰友, 李徐生, 蒋红俊. 长江中下游地区下蜀黄土磁化率曲线与环境变迁[J]. 沉积学报, 2000, 18(1): 18-21.

引用本文:

张建军, 杨达源, 陈曰友, 李徐生, 蒋红俊. 长江中下游地区下蜀黄土磁化率曲线与环境变迁[J]. 沉积学报, 2000, 18(1): 18-21.

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长江中下游地区下蜀黄土磁化率曲线与环境变迁

作者简介:
张建军,男,1973年出生,硕士,自然地理学

计量

Study on the Magnetic Susceptibility of the Xiashu Loess and the Paleoenvironment Changes in the Middle and Lower Changjiang River

计量

目录

长江中下游地区下蜀黄土磁化率曲线与环境变迁

1. 南京大学大地海洋科学系南京 210093;

2. 江苏省镇江市勘察测绘院江苏镇江 212000

作者简介:
张建军,男,1973年出生,硕士,自然地理学

English Abstract

Study on the Magnetic Susceptibility of the Xiashu Loess and the Paleoenvironment Changes in the Middle and Lower Changjiang River

1. Department of Geology & Ocean Sciences, Nanjing University, Nanjing 210093;

2. Zhenjiang Prospecting and Magpping Institute Zhenjiang Jiangsu 212000

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长江中下游地区下蜀黄土磁化率曲线与环境变迁

作者简介: 张建军,男,1973年出生,硕士,自然地理学

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Study on the Magnetic Susceptibility of the Xiashu Loess and the Paleoenvironment Changes in the Middle and Lower Changjiang River

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出版历程

目录

长江中下游地区下蜀黄土磁化率曲线与环境变迁

1. 南京大学大地海洋科学系 南京 210093; 2. 江苏省镇江市勘察测绘院 江苏镇江 212000

作者简介: 张建军,男,1973年出生,硕士,自然地理学

English Abstract

Study on the Magnetic Susceptibility of the Xiashu Loess and the Paleoenvironment Changes in the Middle and Lower Changjiang River

1. Department of Geology & Ocean Sciences, Nanjing University, Nanjing 210093; 2. Zhenjiang Prospecting and Magpping Institute Zhenjiang Jiangsu 212000

全文HTML

目录

友情链接

期刊在线

联系我们

作者简介:
张建军,男,1973年出生,硕士,自然地理学

1. 南京大学大地海洋科学系南京 210093;

2. 江苏省镇江市勘察测绘院江苏镇江 212000

作者简介:
张建军,男,1973年出生,硕士,自然地理学

1. Department of Geology & Ocean Sciences, Nanjing University, Nanjing 210093;

2. Zhenjiang Prospecting and Magpping Institute Zhenjiang Jiangsu 212000