Physical properties of surface sediments from the KR(Korea Reserved) 5 area, northeastern equatorial Pacific SCOPUS KCI

Title
Physical properties of surface sediments from the KR(Korea Reserved) 5 area, northeastern equatorial Pacific
Author(s)
Lee, H.-B.; Chi, S.-B.; Hyeong, K.; Park, C.-K.; Kim, K.-H.; Oh, J.-K.
KIOST Author(s)
Chi, Sang Bum(지상범)Hyeong, Kiseong(형기성)
Publication Year
2006-12
Abstract
In order to reveal the vertical variation of physical properties in deep-sea sediments, deep-sea sediment cores were collected at 78 stations using a multiple corer in the KR5 area, one of the Korea contract areas for manganese nodule exploration, located in the northeast equatorial Pacific. Based on the color of sediments, sampled sediment cores were characterized into three lithologic units (unit 1, 2, and 3). In all sediment cores, three units appear systematically; unit 1 lies at the top of cores and unit 2 and/or unit 3 appear to underlie unit 1 or alternate with unit 1. Unit 1 layer from the top of cores shows dark grayish brown to dark brown with mean thickness of 10.2 cm. Unit 2 and 3 layers show very dark brown to black color and yellowish brown to brown color, respectively. According to the physical properties of the deep-sea sediment cores, sediment column can be divided into three sections. Section A (0∼15 cm) in subbottom depth consists mostly of unit 1. Mean values of physical properties of section B (15∼30 cm) in subbottom depth are similar to those of section C (>30 cm) in subbottom depth. However, the physical properties of section B were more variable than those of section C because of the high activity of bioturbation in section B. These results will provide valuable information for selecting suitable sites for mining manganese nodules in the Korea contract areas.
ISSN
1598-141X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/6514
DOI
10.4217/OPR.2006.28.4.475
Bibliographic Citation
Ocean and Polar Research, v.28, no.4, pp.475 - 484, 2006
Publisher
Korea Ocean Research and Development Institute
Keywords
Deep-sea sediment; Northeast equatorial Pacific; Physical properties
Type
Article
Language
Korean
Document Type
Article
Publisher
Korea Ocean Research and Development Institute
Related Researcher
Research Interests

deep sea mineral resources,deep sea sediments,심해저 광물자원,심해저 퇴적물,심해 환경

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