苏州澄湖湖底硬粘土粒度特征及成因初探

付苗苗

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苏州澄湖湖底硬粘土粒度特征及成因初探

付苗苗

文章导航 > 沉积学报 > 2008 > 26(5): 828-832

付苗苗. 苏州澄湖湖底硬粘土粒度特征及成因初探[J]. 沉积学报, 2008, 26(5): 828-832.

引用本文:

付苗苗. 苏州澄湖湖底硬粘土粒度特征及成因初探[J]. 沉积学报, 2008, 26(5): 828-832.

FU Miao-miao. The Particle Size Characteristics and Origin of Hard Clay in the  Central Area of Chenghu Lake, Jiangsu Province, China[J]. Acta Sedimentologica Sinica, 2008, 26(5): 828-832.

Citation:

FU Miao-miao. The Particle Size Characteristics and Origin of Hard Clay in the  Central Area of Chenghu Lake, Jiangsu Province, China[J]. Acta Sedimentologica Sinica, 2008, 26(5): 828-832.

付苗苗. 苏州澄湖湖底硬粘土粒度特征及成因初探[J]. 沉积学报, 2008, 26(5): 828-832.

引用本文:

付苗苗. 苏州澄湖湖底硬粘土粒度特征及成因初探[J]. 沉积学报, 2008, 26(5): 828-832.

FU Miao-miao. The Particle Size Characteristics and Origin of Hard Clay in the  Central Area of Chenghu Lake, Jiangsu Province, China[J]. Acta Sedimentologica Sinica, 2008, 26(5): 828-832.

Citation:

FU Miao-miao. The Particle Size Characteristics and Origin of Hard Clay in the  Central Area of Chenghu Lake, Jiangsu Province, China[J]. Acta Sedimentologica Sinica, 2008, 26(5): 828-832.

苏州澄湖湖底硬粘土粒度特征及成因初探

付苗苗

华东师范大学资源与环境科学学院地理系上海 200062

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The Particle Size Characteristics and Origin of Hard Clay in the  Central Area of Chenghu Lake, Jiangsu Province, China

FU Miao-miao

School of Resources and Environmental Sciences, East China Normal University, Shanghai 200062

摘要

摘要: 澄湖是太湖平原上的一个浅水湖泊,湖底十分平坦，主要由硬粘土组成，同时发育有NW—SE横穿澄湖的古河道和泥沼洼地。在接近湖泊中心部位的古河道中打钻获得了4 m长的岩芯，并进行了详细的粒度分析。结果表明，该岩芯下部的硬粘土主要由细粉砂、中粉砂和粘土组成，分别占26.7%~38.1%，26.9%~34.3%和19.7%~26.2%，可命名为粘土质粉砂；众数粒径为10~50 μm，平均占57.9%；平均粒径为6.3~6.9。将其与上部的湖泊沉积、镇江下蜀黄土和中国北方各地黄土的粒度比较表明，苏州澄湖湖底的硬粘土原本也是风尘沉积。
- 澄湖 /
- 硬粘土 /
- 粒度 /
- 太湖平原 /
- 长江
Abstract: Chenghu is one of the shallow lakes in Taihu Plain, Jiangsu Province, China. The bottom of Chenghu is extremely flat, which is mainly composed of ‘hard clay’(a kind of sediment consisting of silt and clay), and has been featured with a NWSE paleochannel in the middle and shallow swamps in the middlewest. Sediment record in these paleochannel and swamps may become good archives, spanning from the Last Glacial to the Postglacial. This paper focuses on the hard clay of the lake bottom based on the study of the SC7 core (about 4 meters long) that drilled in the paleochannel at the bottom of the lake. The composition of the particlesize of the hard clay is discussed in detail. The hard clay in Chenghu mainly consists of fine silt, medium silt and clay; the content of fine silt from 26.7% to 38.1%, that of medium silt from 26.9% to 34.3%, that of clay from 19.7% to 26.2%, which belongs to clayey silt. The 10~50 μm particle group is the “dominate group” of the hard clay in Chenghu with the average content of 57.9%. The mean particlesize is from 6.3 to 6.9. Through the comparison of the particlesize characteristics among the hard clay in Chenghu, lake sediments, Xiashu Loess in Zhenjiang of Jiangsu Province and the northern China loesses in Qaidam, western Gansu, eastern Gansu, northern Shaanxi, western Shanxi and Shandong Province, we tend to conclude that the hard clay in Chenghu is of aeolian origin.
- Chenghu Lake /
- hard clay /
- particle size /
- Taihu Plain /
- Yangtze River

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[1]	赵磊, 史正涛, 叶蕾, 喜文飞, 苏怀. “11·03”金沙江白格堰塞湖溃决洪水沉积物粒度特征 . 沉积学报, 2024, 42(5): 1530-1540. doi: 10.14027/j.issn.1000-0550.2022.145
[2]	倪和平, 毕磊, 郭玉龙, 何中发, 杨守业. 长江口沉积物化学相态分析及主泓变迁的指示 . 沉积学报, 2023, 41(1): 243-255. doi: 10.14027/j.issn.1000-0550.2021.084
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[4]	林旭, 陈济鑫, 吴中海, 刘海金, 张洋. 现代河流碎屑磷灰石原位地球化学分析——对长江物源示踪研究的启示 . 沉积学报, 2022, 40(4): 861-870. doi: 10.14027/j.issn.1000-0550.2021.103
[5]	成沁梓, 王峰, 陈锦, 葛灿, 赵旋琪, 陈莹璐, 年小美, 张卫国, 陈中原, Kam⁃biuLIU. 长江水下三角洲沉积物磁性特征空间差异及其冲淤指示意义 . 沉积学报, 2020, 38(6): 1215-1225. doi: 10.14027/j.issn.1000-0550.2019.119
[6]	周建超, 吴敬禄, 曾海鳌. 新疆乌伦古湖沉积物粒度特征揭示的环境信息 . 沉积学报, 2017, 35(6): 1158-1165. doi: 10.14027/j.cnki.cjxb.2017.06.007
[7]	吴汉, 常凤琴, 张虎才, 李华勇, 蒙红卫, 段立曾, 刘东升, 李楠, 朱梦姝. 泸沽湖表层沉积物粒度空间分布特征及其影响因素 . 沉积学报, 2016, 34(4): 679-687. doi: 10.14027/j.cnki.cjxb.2016.04.008
[8]	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
[9]	李楠楠, 介冬梅, 阳金秀, 陈雪松, 陈玉洁, 胡楚天, 乔志和. 长白山西麓泥炭灰分粒度特征及其环境意义 . 沉积学报, 2014, 32(5): 873-883.
[10]	. 长江水下三角洲向南延伸泥质带浅地层结构及沉积物特征初探——以朱家尖岛以东海域为例 . 沉积学报, 2014, 32(2): 296-305.
[11]	. 长江上游水系沉积物锶—钕同位素组成及物源示踪 . 沉积学报, 2014, 32(2): 290-295.
[12]	. 乌梁素海湖泊沉积物粒度特征及其环境指示意义 . 沉积学报, 2013, 31(04): 646-652.
[13]	何梦颖. 长江流域沉积物黏土矿物组合特征及物源指示意义 . 沉积学报, 2011, 29(3): 544-551.
[14]	谢昕. 古环境研究中深海沉积物粒度测试的预处理方法 . 沉积学报, 2007, 25(5): 684-692.
[15]	刘红. 长江口表层沉积物粒度时空分布特征 . 沉积学报, 2007, 25(3): 445-455.
[16]	于学峰周卫健刘晓清郑艳红宋少华. 青藏高原东部全新世泥炭灰分的粒度特征及其古气候意义 . 沉积学报, 2006, 24(06): 864-869.
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[18]	. 长江水系沉积物碎屑矿物组成及其示踪意义 . 沉积学报, 2006, 24(4): 570-578.
[19]	王永红, 沈焕庭, 张卫国. 长江与黄河河口沉积物磁性特征对比的初步研究 . 沉积学报, 2004, 22(4): 658-663.
[20]	曹红霞, 张云翔, 岳乐平, 王煜. 毛乌素沙地全新世地层粒度组成特征及古气候意义 . 沉积学报, 2003, 21(3): 482-486.

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苏州澄湖湖底硬粘土粒度特征及成因初探

付苗苗

华东师范大学资源与环境科学学院地理系上海 200062

收稿日期: 1900-01-01
修回日期: 1900-01-01
刊出日期: 2008-10-10

关键词:

澄湖 /

硬粘土 /

粒度 /

太湖平原 /

长江

摘要: 澄湖是太湖平原上的一个浅水湖泊,湖底十分平坦，主要由硬粘土组成，同时发育有NW—SE横穿澄湖的古河道和泥沼洼地。在接近湖泊中心部位的古河道中打钻获得了4 m长的岩芯，并进行了详细的粒度分析。结果表明，该岩芯下部的硬粘土主要由细粉砂、中粉砂和粘土组成，分别占26.7%~38.1%，26.9%~34.3%和19.7%~26.2%，可命名为粘土质粉砂；众数粒径为10~50 μm，平均占57.9%；平均粒径为6.3~6.9。将其与上部的湖泊沉积、镇江下蜀黄土和中国北方各地黄土的粒度比较表明，苏州澄湖湖底的硬粘土原本也是风尘沉积。

English Abstract

The Particle Size Characteristics and Origin of Hard Clay in the  Central Area of Chenghu Lake, Jiangsu Province, China

FU Miao-miao

School of Resources and Environmental Sciences, East China Normal University, Shanghai 200062

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2008-10-10

Keywords:

Abstract: Chenghu is one of the shallow lakes in Taihu Plain, Jiangsu Province, China. The bottom of Chenghu is extremely flat, which is mainly composed of ‘hard clay’(a kind of sediment consisting of silt and clay), and has been featured with a NWSE paleochannel in the middle and shallow swamps in the middlewest. Sediment record in these paleochannel and swamps may become good archives, spanning from the Last Glacial to the Postglacial. This paper focuses on the hard clay of the lake bottom based on the study of the SC7 core (about 4 meters long) that drilled in the paleochannel at the bottom of the lake. The composition of the particlesize of the hard clay is discussed in detail. The hard clay in Chenghu mainly consists of fine silt, medium silt and clay; the content of fine silt from 26.7% to 38.1%, that of medium silt from 26.9% to 34.3%, that of clay from 19.7% to 26.2%, which belongs to clayey silt. The 10~50 μm particle group is the “dominate group” of the hard clay in Chenghu with the average content of 57.9%. The mean particlesize is from 6.3 to 6.9. Through the comparison of the particlesize characteristics among the hard clay in Chenghu, lake sediments, Xiashu Loess in Zhenjiang of Jiangsu Province and the northern China loesses in Qaidam, western Gansu, eastern Gansu, northern Shaanxi, western Shanxi and Shandong Province, we tend to conclude that the hard clay in Chenghu is of aeolian origin.

付苗苗. 苏州澄湖湖底硬粘土粒度特征及成因初探[J]. 沉积学报, 2008, 26(5): 828-832.

引用本文:

付苗苗. 苏州澄湖湖底硬粘土粒度特征及成因初探[J]. 沉积学报, 2008, 26(5): 828-832.

FU Miao-miao. The Particle Size Characteristics and Origin of Hard Clay in the  Central Area of Chenghu Lake, Jiangsu Province, China[J]. Acta Sedimentologica Sinica, 2008, 26(5): 828-832.

Citation:

FU Miao-miao. The Particle Size Characteristics and Origin of Hard Clay in the  Central Area of Chenghu Lake, Jiangsu Province, China[J]. Acta Sedimentologica Sinica, 2008, 26(5): 828-832.

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苏州澄湖湖底硬粘土粒度特征及成因初探

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The Particle Size Characteristics and Origin of Hard Clay in the  Central Area of Chenghu Lake, Jiangsu Province, China

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苏州澄湖湖底硬粘土粒度特征及成因初探

华东师范大学资源与环境科学学院地理系上海 200062

English Abstract

The Particle Size Characteristics and Origin of Hard Clay in the  Central Area of Chenghu Lake, Jiangsu Province, China

School of Resources and Environmental Sciences, East China Normal University, Shanghai 200062

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苏州澄湖湖底硬粘土粒度特征及成因初探

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The Particle Size Characteristics and Origin of Hard Clay in the  Central Area of Chenghu Lake, Jiangsu Province, China

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苏州澄湖湖底硬粘土粒度特征及成因初探

华东师范大学资源与环境科学学院地理系 上海 200062

English Abstract

The Particle Size Characteristics and Origin of Hard Clay in the  Central Area of Chenghu Lake, Jiangsu Province, China

School of Resources and Environmental Sciences, East China Normal University, Shanghai 200062

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华东师范大学资源与环境科学学院地理系上海 200062