Complex sedimentation of the Holocene mud deposits in a ria-type coastal area, eastern Korea Strait SCIE SCOPUS

Cited 11 time in WEB OF SCIENCE Cited 0 time in Scopus
Title
Complex sedimentation of the Holocene mud deposits in a ria-type coastal area, eastern Korea Strait
Author(s)
Lee, SH; Lee, HJ; Jo, HR; Bahk, JJ; Chu, YS
KIOST Author(s)
Lee, Sang Hoon(이상훈)Lee, Hee Jun(이희준)
Publication Year
2005-02-15
Abstract
The innermost shelf of the eastern Korea Strait is a ria-type coastal sea comprising islands, intervening passageways and embayments. A detailed analysis of high-resolution (1-10 kHz) subbottom profiles and core sediments from this area reveals complicated depositional and distributional patterns of the Holocene mud deposits related to complex topography with varying supply of the adjacent Nakdong riverine sediments. Sediments from the Nakdong River were bifurcated around Gadeok Island, forming two proximal systems: Nakdong and western Gadeok systems. These proximal systems prograded offshore (southward) by active sediment supply from the Nakdong River in the early stage. Suspended sediments passing through the Nakdong system formed the distal (Gadeok Waterway and eastern Geoje) systems in the area between the northern Geoje and Gadeok islands. These distal systems show a northwestward (onshore) prograding tendency to Jinhae Bay, the biggest bay in the vicinity of the Nakdong estuary in which the Jinhae Bay system developed. In the late stage, a remarkable decrease of sediment supply from the Nakdong River has caused retrograding geometry of the two proximal systems. However, the most distal (Jinhae Bay) system has continuously prograded bayward due to the persistent supply of sediments resuspended by strong tidal currents from nearby distal (Gadeok Waterway and eastern Geoje) systems. These complex depositional features indicate that topography has an important influence on depositional developments of the Holocene mud deposits by controlling path and intensity of sediment dispersal and resuspension processes. (C) 2004 Elsevier B.V. All rights reserved.
ISSN
0025-3227
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/5097
DOI
10.1016/j.margeo.2004.11.003
Bibliographic Citation
MARINE GEOLOGY, v.214, no.4, pp.389 - 409, 2005
Publisher
ELSEVIER SCIENCE BV
Subject
NORTHWESTERN MEDITERRANEAN-SEA; YELLOW SEA; CONTINENTAL-SHELF; LATE PLEISTOCENE; CHINA SEA; ACCUMULATION; PRODELTA
Keywords
Holocene muds; depositional architecture; suspended sediment dispersal; ria-type coastal sea; Korea Strait
Type
Article
Language
English
Document Type
Article
Publisher
ELSEVIER SCIENCE BV
Related Researcher
Research Interests

Marine Geology,Marine Sedimentary Environments and Processes,Submarine slope failures and stability,해양지질,해양퇴적 환경 및 작용,해저사면 사태 및 안정성

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