东海内陆架泥区沉积物的环境敏感粒度组分

肖尚斌; 李安春

东海内陆架泥区沉积物的环境敏感粒度组分

肖尚斌^1,2,
李安春¹

1.
中国科学院海洋研究所,山东青岛 266071;
2.
中国科学院南海海洋研究所,广州 510301

基金项目: 中国科学院海洋研究所创新基金(L61022811)资助

详细信息

作者简介:
肖尚斌，男，1970年出生，博士，海洋地质。

中图分类号: P736.2

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文章访问数: 643
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A Study on Environmentally Sensitive Grain-size Population in Inner Shelf of the East China Sea

XIAO Shang-bin^1,2,
LI An-chun¹

1.
Institute of Oceanology, Chinese Academy Sciences, Qingdao Shandong 266071;
2.
South China Sea Institute of Oceanology, Guangzhou 510301

摘要

摘要: 对东海内陆架泥质沉积区的DD2孔和悬浮体进行了陆源物质提取,应用激光粒度仪做了粒度分析,并分析了DD2孔粒度参数的垂向分布序列。通过计算粒级—标准偏差的变化获得了DD2孔沉积物中对沉积环境变化较为敏感的粒度组分,约 19和 130μm是DD2孔所属区域对沉积环境敏感的粒级,分别对应于东海沿岸流和风暴流沉积动力过程。敏感粒度组分含量随深度变化的分析表明,该孔上段的沉积作用主要受控于沿岸流,沉积环境相对稳定;而下段沉积环境变化大,是风暴流和沿岸流的混合作用沉积的结果。
- 粒度组分 /
- 陆源物质 /
- 东海内陆架
Abstract: Grain-size distribution of 149 sediment samp les of Core DD2 and 3 suspended sediment samp les, pretreated by removing the organic matter and carbonate, are measured by use ofMalvern 2000. The samp ling sites are located in the inner shelf of the East China Sea. Vertical distribution of grain-size parameters of Core DD2 is studied. Standard deviations are calculated for all 149 samp les. Two peaks are observed in plot standard deviation values vs.grain-size classes, at about 19 and 130μm grain size, respectively. They are environmentally sensitive grain-size population. And about 19μm is sensitive to coastal current of the East China Sea, the other is to storm current. Each of these size classes rep resents a population of grainswith the highest variability through time. Vertical contents of sensitive grain-size population are carried out. It shows that the sedimentations of upper Core DD2 was controlled by coastal current and was in relatively stable environment. This result is supported by the comparison analysis between the modern suspended sediments and Core DD2. And lower part was controlled by combination of coastal and storm currents and was in unstable environment.
- grain-size population /
- terrigenousmatter /
- inner shelf of the East China Sea

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参考文献(1)

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东海内陆架泥区沉积物的环境敏感粒度组分

作者简介:
肖尚斌，男，1970年出生，博士，海洋地质。

计量

A Study on Environmentally Sensitive Grain-size Population in Inner Shelf of the East China Sea

计量

目录

东海内陆架泥区沉积物的环境敏感粒度组分

1. 中国科学院海洋研究所,山东青岛 266071;

2. 中国科学院南海海洋研究所,广州 510301

作者简介:
肖尚斌，男，1970年出生，博士，海洋地质。

English Abstract

A Study on Environmentally Sensitive Grain-size Population in Inner Shelf of the East China Sea

1. Institute of Oceanology, Chinese Academy Sciences, Qingdao Shandong 266071;

2. South China Sea Institute of Oceanology, Guangzhou 510301

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东海内陆架泥区沉积物的环境敏感粒度组分

作者简介: 肖尚斌，男，1970年出生，博士，海洋地质。

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出版历程

A Study on Environmentally Sensitive Grain-size Population in Inner Shelf of the East China Sea

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出版历程

目录

东海内陆架泥区沉积物的环境敏感粒度组分

1. 中国科学院海洋研究所,山东青岛 266071; 2. 中国科学院南海海洋研究所,广州 510301

作者简介: 肖尚斌，男，1970年出生，博士，海洋地质。

English Abstract

A Study on Environmentally Sensitive Grain-size Population in Inner Shelf of the East China Sea

1. Institute of Oceanology, Chinese Academy Sciences, Qingdao Shandong 266071; 2. South China Sea Institute of Oceanology, Guangzhou 510301

全文HTML

目录

友情链接

期刊在线

联系我们

作者简介:
肖尚斌，男，1970年出生，博士，海洋地质。

1. 中国科学院海洋研究所,山东青岛 266071;

2. 中国科学院南海海洋研究所,广州 510301

作者简介:
肖尚斌，男，1970年出生，博士，海洋地质。

1. Institute of Oceanology, Chinese Academy Sciences, Qingdao Shandong 266071;

2. South China Sea Institute of Oceanology, Guangzhou 510301