북동태평양 C-C지역 심해저퇴적물의 물리적특성에 관한연구

Title
북동태평양 C-C지역 심해저퇴적물의 물리적특성에 관한연구
Alternative Title
A Study of Mass Physical Properties in Deep-sea Sediment From the Clarion-Clipperton Fracture Zone, Notheast Equatorial Pacific
Author(s)
지상범; 이현복; 고영탁; 오재경
KIOST Author(s)
Chi, Sang Bum(지상범)Ko, Youngtak(고영탁)
Publication Year
2005-11-04
Abstract
Deep-sea surface sediments acquired by multiple corer from 59 stations in the Clarion-Clipperton fracture zone of the northeast equatorial Pacific, were examined to understand the correlation of mass physical properties and sedimentological processes. The seabed of the middle parts (8-12°N) in study area is mainly covered with biogenic siliceous sediment but also with pelagic red clays, especially in the northern parts (16-17°N). In the southern part (5-6°N) of which water depth is shallower than the carbonate compensation depth calcareous sediment prevail. It was found that mass physical properties such as grain size distribution, mean grain size, water content, specific grain density, wet bulk density, void ratio, and porosity of sediments were distinctly different according to their sediment types. These variations in mass physical properties of sediments are the combined results of the following factors: biogenic primary productivity of surface water, water depth, especially with respect to the carbonate compensation depth(CCD), sedimentation rate, input of wind-blown (eolian, lithogeneous) component, and the geochemical characteristics of the bottom water (for example, formation of authigenic clay minerals and dissolution of biogenic grains).
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/31211
Bibliographic Citation
사단법인 한국해양학회 2005년도 추계학술발표대회, pp.113, 2005
Publisher
한국해양학회
Type
Conference
Language
English
Publisher
한국해양학회
Related Researcher
Research Interests

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

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