Transgressive Shelf Sands around the Korean Peninsula: A Brief Review SCIE SCOPUS KCI

Cited 0 time in WEB OF SCIENCE Cited 0 time in Scopus
Title
Transgressive Shelf Sands around the Korean Peninsula: A Brief Review
Alternative Title
Transgressive Shelf Sands around the Korean Peninsula: A Brief Review
Author(s)
Lee, Hee Jun; Jeon, Chung Kyun; Lim, Hak Soo
KIOST Author(s)
Lee, Hee Jun(이희준)Jeon, Chung Kyun(전청균)Lim, Hak Soo(임학수)
Publication Year
2020
Abstract
Sands are distributed in a sheet form across the entire shelf of the Yellow and South seas. They are barely several meters thick except for sand waves and ridges, which are commonly thicker than 10 m. These shelf sands are called transgressive sand deposits (TSDs), which formed during the Holocene. The formation of TSDs can be explained by shoreface retreat, a morpho-dynamical process in response to sea-level rise. This process is accompanied by an intensive erosion of beach/barriers with the eroded sands depositing behind onto tidal or estuarine muddy sediments. The TSDs in the Yellow and South seas may well be traceable to the present coast. As a result, the TSDs reflect successive earlier positions of the coastline. The consequence of the shoreface retreat in the Yellow and South seas is expressed in the Holocene stratigraphy. It shows a somewhat abrupt change in the grain texture of sediments in the upper part. That is, the sediments coarsen upward from mud or muddy sand to massive fine-to-medium sand, i.e. the TSDs. Most of the TSDs are still reworked by strong tidal currents and winter stormy waves as evidenced by asymmetric sand waves of various scale. The Korean coast of the East Sea is characterized by beaches and sand bars in wave-dominant environments. However, the narrow and steep shelf of the East Sea is virtually barren of TSDs. That may be elucidated by a sediment-dynamical finding that shoreface retreat becomes more erosive as the slope gradient increases.
ISSN
1738-5261
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/38780
DOI
10.1007/s12601-020-0035-5
Bibliographic Citation
OCEAN SCIENCE JOURNAL, v.55, no.4, pp.465 - 475, 2020
Publisher
KOREA INST OCEAN SCIENCE & TECHNOLOGY-KIOST
Keywords
Holocene transgression; Korean seas; shelf sands; shoreface retreat; stratigraphy
Type
Article
Language
English
Document Type
Review; Early Access
Publisher
KOREA INST OCEAN SCIENCE & TECHNOLOGY-KIOST
Related Researcher
Research Interests

Coastal Disaster Prevention,Coastal Erosion Research,Coastal Ocean Modeling,연안재해방재,연안침식연구,연안해양모델링

Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse