Multibeam Bathymetry and Distribution of Clay Minerals on Surface Sediments of a Small Bay in Terra Nova Bay, Antarctica SCIE SCOPUS

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Title
Multibeam Bathymetry and Distribution of Clay Minerals on Surface Sediments of a Small Bay in Terra Nova Bay, Antarctica
Author(s)
Jung, Jaewoo; Ko, Youngtak; Lee, Joohan; Yang, Kiho; Park, Young Kyu; Kim, Sunghan; Moon, Heungsoo; Kim, Hyoung Jun; Yoo, Kyu-Cheul
KIOST Author(s)
Jung, Jaewoo(정재우)Ko, Youngtak(고영탁)
Publication Year
2021-01
Abstract
The second Antarctic station of South Korea was constructed at Terra Nova Bay, East Antarctica, but local seafloor morphology and clay mineralogical characteristics are still not fully understood. Its small bay is connected to a modern Campbell Glacier, cliffs, and raised beaches along the coastline. Fourteen sampling sites to collect surface sediments were chosen in the small bay for grain size and clay mineral analyses to study the sediment source and sediment-transport process with multibeam bathymetry and sub-bottom profiles. Under the dominant erosional features (streamlined feature and meltwater channel), icebergs are the major geological agent for transport and deposition of coarse-sized sediments along the edge of glaciers in summer, and thus the study area can reveal the trajectory of transport by icebergs. Glacier meltwater is an important agent to deposit the clay-sized detritus and it results from the dominance of the illite content occurring along the edge of Campbell Glacier Tongue. The high smectite content compared to Antarctic sediments may be a result of the source of the surrounding volcanic rocks around within the Melbourne Volcanic Province.
ISSN
2075-163X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/39526
DOI
10.3390/min11010072
Bibliographic Citation
MINERALS, v.11, no.1, pp.1 - 12, 2021
Publisher
MDPI
Keywords
Antarctica; Ross Sea; Terra Nova Bay; multibeam bathymetry; surface sediments; clay mineralogy
Type
Article
Language
English
Document Type
Article
Publisher
MDPI
Related Researcher
Research Interests

marine geophysics,deep-sea minerals,해양지구물리,심해저광물자원

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