珠江河口沉积物粒度特征及其对底层水动力环境的指示

ISSN 1000-0550 CN 62-1038/P

高级搜索

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

珠江河口沉积物粒度特征及其对底层水动力环境的指示

彭晓彤, 周怀阳, 叶瑛, 陈光谦

文章导航 > 沉积学报 > 2004 > 22(3): 487-493

彭晓彤, 周怀阳, 叶瑛, 陈光谦. 珠江河口沉积物粒度特征及其对底层水动力环境的指示[J]. 沉积学报, 2004, 22(3): 487-493.

引用本文:

彭晓彤, 周怀阳, 叶瑛, 陈光谦. 珠江河口沉积物粒度特征及其对底层水动力环境的指示[J]. 沉积学报, 2004, 22(3): 487-493.

PENG Xiao-tong, ZHOU Huai-yang, YE Ying, CHEN Guang-qian. Characteristics of Sediment Grain Size and Their Implications for Bottom Hydrodynamic Environment in the Pearl River Estuary[J]. Acta Sedimentologica Sinica, 2004, 22(3): 487-493.

Citation:

PENG Xiao-tong, ZHOU Huai-yang, YE Ying, CHEN Guang-qian. Characteristics of Sediment Grain Size and Their Implications for Bottom Hydrodynamic Environment in the Pearl River Estuary[J]. Acta Sedimentologica Sinica, 2004, 22(3): 487-493.

彭晓彤, 周怀阳, 叶瑛, 陈光谦. 珠江河口沉积物粒度特征及其对底层水动力环境的指示[J]. 沉积学报, 2004, 22(3): 487-493.

引用本文:

彭晓彤, 周怀阳, 叶瑛, 陈光谦. 珠江河口沉积物粒度特征及其对底层水动力环境的指示[J]. 沉积学报, 2004, 22(3): 487-493.

PENG Xiao-tong, ZHOU Huai-yang, YE Ying, CHEN Guang-qian. Characteristics of Sediment Grain Size and Their Implications for Bottom Hydrodynamic Environment in the Pearl River Estuary[J]. Acta Sedimentologica Sinica, 2004, 22(3): 487-493.

Citation:

PENG Xiao-tong, ZHOU Huai-yang, YE Ying, CHEN Guang-qian. Characteristics of Sediment Grain Size and Their Implications for Bottom Hydrodynamic Environment in the Pearl River Estuary[J]. Acta Sedimentologica Sinica, 2004, 22(3): 487-493.

珠江河口沉积物粒度特征及其对底层水动力环境的指示

1.
中国科学院广州地球化学研究所广州 510640;
2.
浙江大学地球科学系杭州 310027

基金项目: 中国科学院知识创新领域前沿项目(GIGCX-03-07)；香港科技大学珠江河口污染计划(PREPP)项目联合资助

作者简介:
彭晓彤男 1973年出生副研究员地球化学

中图分类号: P512.2

计量

文章访问数: 673
HTML全文浏览量: 36
PDF下载量: 749
被引次数: 0

Characteristics of Sediment Grain Size and Their Implications for Bottom Hydrodynamic Environment in the Pearl River Estuary

1.
Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640;
2.
Department of Earth Science, Zhejiang University, Hangzhou 310027

摘要: 珠江口伶仃洋及邻近海域沉积物粒级变化大。频率分布曲线形态的变化揭示了珠江河口不同区域泥沙来源的差异。在平面分布上,粗粒级含量从西北部和北部向东南部迅速降低,而细粒级含量高值往往出现在河口中部。表层沉积物平均粒径梯度变化方向与珠江口悬浮物的运移方向大致吻合。反演获得的底层海流不同区域的优势速度与实测资料相符。两者较好地指示了沉积物多年平均优势海流速度和方向,表明利用沉积物粒度数据比较成功地反演出了珠江口沉积物推积前的搬运水动力环境。
- 珠江口 /
- 沉积物粒度 /
- 反演 /
- 水动力环境
Abstract: Analysis of sediment grain size showed that the grain size grade changed greatly in the Pearl estuary. Frequency distribution curves indicated the different sources of the suspended matters in the Pearl River estuary. In spatial distribution, content of coarser sediment component decreased quickly from north and northwest to southeast. However, finer sediment component always had higher contents in the middle of the estuary where a turbidity maximum zone existed, which was related to the resuspension and flocculation in this zone. Mean grain sizes and coarser components of sediments were successfully used to inverse the direction and velocity of bottom currents before the accumulation of sediments. The grade direction of mean grain sizes was basically coincident to the transport direction of the suspended matter. The predominant velocity of bottom current in various zone were consistent with data obtained on-the-spot survey.
- water loads subsidence /
- tectonic subsidence /
- sediment loads subsidence /
- sea -level changes

参考文献(12)

[1]	程鹏,高抒.北黄海西部海底沉积物粒度特征和净输送趋势. 海洋与湖沼,2000,31(6),604～615 [Cheng Peng, Gao Shu. Net sediment transport patterns over the north western Yellow Sea, based upon grain size trend analysis. Oceanologia et Limnologia Sinica, 2000,31(6): 604～615]
[2]	周蒂.利用沉积物数据反演沉积水动力参数.地质科学,1999,34(1):49～58 [Zhou Di. The estimation of sedimentary hydrodynamic parameters from sediment grain size data. Scientia Geologica Sinica, 1999,34(1):49～58]
[3]	Asselman N E M. Grain size trends used to assess the effective discharge for floodplain sedimentation, vier wall, the Netherlands. Journal of Sedimentary Research 1999.69(1),51～61
[4]	Gao S, Collins M. Analysis of grain size trends for defining sediment transport pathways in marine environments. Journal of Coastal Research, 1994, 10(1): 70～78
[5]	赵焕庭.珠江河口演变.北京:海洋出版社,1990. 1～210[Zhao Huanting.The change of Pearl River Estuary . Beijing: Ocean Press, 1990. 1～210]
[6]	王文介.珠江口的沉积作用和沉积相.沉积学报,1985,3(2):129～139 [Wang Wenjie. Sedimentary process and sedimentary facies in the Pearl River estuary. Acta Sedimentologica Sinica, 1985,3(2): 129～139]
[7]	陈耀泰.珠江口沉积分区.中山大学学报(自然科学版),1995,34(3):109～114 [Chen Yaotai. Sedimentation divisions of the Pearl River Mouth. Acta Scientiarum Naturalium Universitatis Sunyatseni, 1995,34(3):109～114]
[8]	周蒂,范时清.珠江口外现代沉积物运移方向的统计分析.热带海洋,1989, 8(3): 96～103 [Zhou Di, Fan Shiqing. A statistical analysis to transport direction of modern sediments outside the Pearl River estuary. Tropic Oceanology,1989, 8(3): 96～103]
[9]	Pedreros R, Howa H L, Michel C. Application of grain size trend analysis for the determination of sediment transport pathways in intertidal areas. Marine Geology, 1996,135: 35～49
[10]	McLaren PA, Boeles D. The effects of sediment transport on grain size distributions. Journal of Sedimentary Petrology, 1985, 55(4):457～470
[11]	赵今声,赵子丹,秦崇仁,等.海岸河口动力学.北京:海洋出版社,1993.375～543 [Zhao Jinseng, Zhao Zhidan, Qin Chongren, et al. Dynamics of Coast and Estuary. Beijing: Ocean Press, 1993.375～543]
[12]	蒋东辉,高抒. 渤海海峡潮流底应力与沉积物分布的关系. 沉积学报,2002,20(4):663～667 [Jiang Donghui, Gao Shu. Relationship between the tidally induced near bed shear stress and the distribution of surficial sediments in the Bohai Strait. Acta Sedimentologica Sinica, 2002,20(4):663～667]

资源附件(0)

WeChat

点击查看大图

计量

文章访问数: 673
HTML全文浏览量: 36
PDF下载量: 749
被引次数: 0

珠江河口沉积物粒度特征及其对底层水动力环境的指示

1. 中国科学院广州地球化学研究所广州 510640;

2. 浙江大学地球科学系杭州 310027

基金项目: 中国科学院知识创新领域前沿项目(GIGCX-03-07)；香港科技大学珠江河口污染计划(PREPP)项目联合资助

作者简介:
彭晓彤男 1973年出生副研究员地球化学

收稿日期: 2003-06-25
修回日期: 2003-09-12
刊出日期: 2004-09-10

中图分类号: P512.2

关键词:

沉积物粒度 /

水动力环境

摘要: 珠江口伶仃洋及邻近海域沉积物粒级变化大。频率分布曲线形态的变化揭示了珠江河口不同区域泥沙来源的差异。在平面分布上,粗粒级含量从西北部和北部向东南部迅速降低,而细粒级含量高值往往出现在河口中部。表层沉积物平均粒径梯度变化方向与珠江口悬浮物的运移方向大致吻合。反演获得的底层海流不同区域的优势速度与实测资料相符。两者较好地指示了沉积物多年平均优势海流速度和方向,表明利用沉积物粒度数据比较成功地反演出了珠江口沉积物推积前的搬运水动力环境。

English Abstract

彭晓彤, 周怀阳, 叶瑛, 陈光谦. 珠江河口沉积物粒度特征及其对底层水动力环境的指示[J]. 沉积学报, 2004, 22(3): 487-493.

引用本文:

彭晓彤, 周怀阳, 叶瑛, 陈光谦. 珠江河口沉积物粒度特征及其对底层水动力环境的指示[J]. 沉积学报, 2004, 22(3): 487-493.

PENG Xiao-tong, ZHOU Huai-yang, YE Ying, CHEN Guang-qian. Characteristics of Sediment Grain Size and Their Implications for Bottom Hydrodynamic Environment in the Pearl River Estuary[J]. Acta Sedimentologica Sinica, 2004, 22(3): 487-493.

Citation:

PENG Xiao-tong, ZHOU Huai-yang, YE Ying, CHEN Guang-qian. Characteristics of Sediment Grain Size and Their Implications for Bottom Hydrodynamic Environment in the Pearl River Estuary[J]. Acta Sedimentologica Sinica, 2004, 22(3): 487-493.

全文HTML

参考文献 (12)

/

下载: 全尺寸图片幻灯片

分享

用微信扫码二维码

分享至好友和朋友圈

返回

x 关闭永久关闭