末次冰期间冰阶晚期长江中游风尘堆积及环境意义

庄检平

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末次冰期间冰阶晚期长江中游风尘堆积及环境意义

庄检平

文章导航 > 沉积学报 > 2007 > 25(3): 424-428

庄检平. 末次冰期间冰阶晚期长江中游风尘堆积及环境意义[J]. 沉积学报, 2007, 25(3): 424-428.

引用本文:

庄检平. 末次冰期间冰阶晚期长江中游风尘堆积及环境意义[J]. 沉积学报, 2007, 25(3): 424-428.

ZHUANG Jianping. Eolian Deposits in the Middle Reaches of the Yangtze River During Late Interstadial of the Last Glacial (4022KaBP) and Its Environmental Significance[J]. Acta Sedimentologica Sinica, 2007, 25(3): 424-428.

Citation:

庄检平. 末次冰期间冰阶晚期长江中游风尘堆积及环境意义[J]. 沉积学报, 2007, 25(3): 424-428.

引用本文:

庄检平. 末次冰期间冰阶晚期长江中游风尘堆积及环境意义[J]. 沉积学报, 2007, 25(3): 424-428.

Citation:

末次冰期间冰阶晚期长江中游风尘堆积及环境意义

庄检平

江西师范大学地理环境学院南昌 330026

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通讯作者:
庄检平

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Eolian Deposits in the Middle Reaches of the Yangtze River During Late Interstadial of the Last Glacial (4022KaBP) and Its Environmental Significance

ZHUANG Jianping

Jiangxi Normal Univercity, Institute of Geography and Enviroment, Nanchang 330026; 

More Information

Corresponding author: ZHUANG Jianping

摘要

摘要: 定山砂山剖面的下层灰黄色土-淤泥沉积，为末次冰期间冰阶（40～22kaBP）区域降尘堆积。灰黄色土层与淤泥为同源异相沉积，粒度组合基本相同，无特征性差异。频数曲线都以双峰为特征，第一峰为主峰，众值8～32 μm；第二为次峰，众值250～500μm。9.75±0.25Φ~4.25±0.25Φ(1 ~62.5μm)在垂向上具有相似的线形变化，组成第一峰态，各粒级垂向上的含量变化是区域冬季风强弱变化的敏感指标；2.25±0.25Φ ~-0.75±0.25Φ (180~2000 μm)具有相似的线形，组成第二峰态，各粒级剖面含量变化则揭示了冬半年环境干湿状况与局地尘暴事件。在对应区域降尘堆积较弱的两个时段，存在局地尘暴的增强事件，指示局地冬半年环境干燥。
- 长江中游 /
- 末次冰期间冰阶 /
- 灰黄色土—淤泥沉积层 /
- 区域降尘 /
- 局地尘暴事件
Abstract: The bottom yellowgrey soilsilt deposits layer at Dingshan sand dune profile originated from the regional dustfall accumulation in the late interstadial of the Last Glacial( 4022 ka BP). Thus the yellowgrey soilsilt had the same origin but had different facis deposits, grain combination are the same and have not characteristic differences; All curves of frequency have character of two apices, the first apex is main and cell value is 832 μm, the second apex is subordinate and cell value is 250500 μm. Cell value of 9.75±0.25Φ~4.25±0.25Φ(1~62.5 μm) have the similar linear change at vertical and compose the first kurtosis, the content changes at different grain vertical is sensitive index on strong and weak changes of winter monsoon; 2.25±0.25Φ~-0.75±0.25Φ (180~2000 μm) have the similar linear change and compose the second kurtosis, the content changes at different grain profiles indicate dry and wet situation at the circumstance of the winter climate and regional dust storm events. At the weak stage of regional dustfall accumulation it had strongly regional dust storm events, indicating that it was dry at local places in the winter.
- The middle reaches of Yangtze River /
- the interstadial of the Last Glacial /
- the yellowgrey soilsilt deposits layer /
- regional dustfall /
- local dust storm events

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[1]	白鑫, 查小春, 黄春长, 周亚利, 庞奖励, 张玉柱, 王娜, 韩宜欣. 若尔盖盆地玛曲段末次冰消期以来的沉积环境和地表过程研究 . 沉积学报, 2023, (): -. doi: 10.14027/j.issn.1000-0550.2023.110
[2]	张玉芬, 李长安, 赵举兴, 毛欣, 许应石, 魏传义, 李亚伟, 张岱. 江汉平原东北缘末次冰消期沉积物粒度特征及环境意义 . 沉积学报, 2021, 39(4): 983-994. doi: 10.14027/j.issn.1000-0550.2020.044
[3]	商圣潭, 钟巍, 魏志强, 朱婵, 薛积彬. 南岭东部定南大湖沉积物粒度敏感组分及末次冰消期环境记录 . 沉积学报, 2018, 36(2): 310-318. doi: 10.14027/j.issn.1000-0550.2018.035
[4]	龙进, 贾玉连, 张智, 彭学敏, 凌超豪, 王朋岭. 末次冰期以来鄱阳湖东北缘下蜀黄土常量元素地球化学特征及其物源指示 . 沉积学报, 2015, 33(5): 932-940. doi: 10.14027/j.cnki.cjxb.2015.05.009
[5]	邓黄月, 郑祥民, 杨立辉, 任少芳, 刘飞. 长江中下游地区第四纪红土磁学特征及其环境意义 . 沉积学报, 2015, 33(2): 285-298. doi: 10.14027/j.cnki.cjxb.2015.02.008
[6]	. 末次间冰期以来沙漠边缘黄土沉积的地球化学特征初探 . 沉积学报, 2012, 30(2): 356-365.
[7]	. 中亚昭苏黄土剖面粒度记录的末次冰期以来气候变化历史 . 沉积学报, 2011, 29(6): 1170-1179.
[8]	徐方建. 末次冰消期以来东海内陆架古环境演化 . 沉积学报, 2009, 27(1): 118-127.
[9]	舒强. 苏北盆地浅钻沉积物磁化率与粒度记录的末次冰消期以来的环境变化 . 沉积学报, 2009, 27(1): 111-117.
[10]	王永波. 青藏高原北部可可西里地区近4000年来尘暴事件初探——来自库赛湖沉积物粒度的证据 . 沉积学报, 2009, 27(4): 691-696.
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[14]	申洪源, 贾玉连, 魏灵. 末次冰期间冰阶(40～22kaBP)内蒙古黄旗海古降水量研究 . 沉积学报, 2005, 23(3): 523-530.
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末次冰期间冰阶晚期长江中游风尘堆积及环境意义

庄检平

江西师范大学地理环境学院南昌 330026

通讯作者: 庄检平

收稿日期: 1900-01-01
修回日期: 1900-01-01
刊出日期: 2007-06-10

关键词:

摘要: 定山砂山剖面的下层灰黄色土-淤泥沉积，为末次冰期间冰阶（40～22kaBP）区域降尘堆积。灰黄色土层与淤泥为同源异相沉积，粒度组合基本相同，无特征性差异。频数曲线都以双峰为特征，第一峰为主峰，众值8～32 μm；第二为次峰，众值250～500μm。9.75±0.25Φ~4.25±0.25Φ(1 ~62.5μm)在垂向上具有相似的线形变化，组成第一峰态，各粒级垂向上的含量变化是区域冬季风强弱变化的敏感指标；2.25±0.25Φ ~-0.75±0.25Φ (180~2000 μm)具有相似的线形，组成第二峰态，各粒级剖面含量变化则揭示了冬半年环境干湿状况与局地尘暴事件。在对应区域降尘堆积较弱的两个时段，存在局地尘暴的增强事件，指示局地冬半年环境干燥。

English Abstract

Eolian Deposits in the Middle Reaches of the Yangtze River During Late Interstadial of the Last Glacial (4022KaBP) and Its Environmental Significance

ZHUANG Jianping

Jiangxi Normal Univercity, Institute of Geography and Enviroment, Nanchang 330026; 

Corresponding author: ZHUANG Jianping

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2007-06-10

Keywords:

Abstract: The bottom yellowgrey soilsilt deposits layer at Dingshan sand dune profile originated from the regional dustfall accumulation in the late interstadial of the Last Glacial( 4022 ka BP). Thus the yellowgrey soilsilt had the same origin but had different facis deposits, grain combination are the same and have not characteristic differences; All curves of frequency have character of two apices, the first apex is main and cell value is 832 μm, the second apex is subordinate and cell value is 250500 μm. Cell value of 9.75±0.25Φ~4.25±0.25Φ(1~62.5 μm) have the similar linear change at vertical and compose the first kurtosis, the content changes at different grain vertical is sensitive index on strong and weak changes of winter monsoon; 2.25±0.25Φ~-0.75±0.25Φ (180~2000 μm) have the similar linear change and compose the second kurtosis, the content changes at different grain profiles indicate dry and wet situation at the circumstance of the winter climate and regional dust storm events. At the weak stage of regional dustfall accumulation it had strongly regional dust storm events, indicating that it was dry at local places in the winter.

庄检平. 末次冰期间冰阶晚期长江中游风尘堆积及环境意义[J]. 沉积学报, 2007, 25(3): 424-428.

引用本文:

庄检平. 末次冰期间冰阶晚期长江中游风尘堆积及环境意义[J]. 沉积学报, 2007, 25(3): 424-428.

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末次冰期间冰阶晚期长江中游风尘堆积及环境意义

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Eolian Deposits in the Middle Reaches of the Yangtze River During Late Interstadial of the Last Glacial (4022KaBP) and Its Environmental Significance

Corresponding author: ZHUANG Jianping

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末次冰期间冰阶晚期长江中游风尘堆积及环境意义

江西师范大学地理环境学院南昌 330026

通讯作者: 庄检平

English Abstract

Eolian Deposits in the Middle Reaches of the Yangtze River During Late Interstadial of the Last Glacial (4022KaBP) and Its Environmental Significance

Jiangxi Normal Univercity, Institute of Geography and Enviroment, Nanchang 330026; 

Corresponding author: ZHUANG Jianping

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末次冰期间冰阶晚期长江中游风尘堆积及环境意义

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Eolian Deposits in the Middle Reaches of the Yangtze River During Late Interstadial of the Last Glacial (4022KaBP) and Its Environmental Significance

Corresponding author: ZHUANG Jianping

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末次冰期间冰阶晚期长江中游风尘堆积及环境意义

江西师范大学地理环境学院 南昌 330026

通讯作者: 庄检平

English Abstract

Eolian Deposits in the Middle Reaches of the Yangtze River During Late Interstadial of the Last Glacial (4022KaBP) and Its Environmental Significance

Jiangxi Normal Univercity, Institute of Geography and Enviroment, Nanchang 330026; 

Corresponding author: ZHUANG Jianping

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通讯作者:
庄检平

江西师范大学地理环境学院南昌 330026