Analysis of main ion components and variation in shallow ice core in Northern Victoria Land (GV7, Styx) using ion chromatography.
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Title
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Analysis of main ion components and variation in shallow ice core in Northern Victoria Land (GV7, Styx) using ion chromatography.
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Other Titles
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남극 북빅토리아랜드 GV7, Styx 펀코어의 주요이온성분 특성과 변동 특성
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Authors
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Chang, Chaewon
Hong, Sang-Bum
Moon, Jangil
Ro, Seokhyun
Han, Yeongcheol
Jun, Seong Joon
Chung, Ji Woong
Hur, Soon Do
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Issue Date
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2019
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Citation
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Chang, Chaewon, et al. 2019. Analysis of main ion components and variation in shallow ice core in Northern Victoria Land (GV7, Styx) using ion chromatography.. International Symposium on Antarctic Earth Sciences 2019. Songdo Convensia. 2019.07.22~2019.07.26.
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Abstract
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Since the major ion components (F-, Na+, Cl-, SO42-, Ca2+, etc.) of ice sheets of Antarctica originate mainly from atmospheric fine dust and gas, their composition and concentration change characteristics restore the past atmospheric environment changes. Recovered fluoride ion (F-) recordings in polar regions are known as representative proxies that point to past large-scale volcanic activity, along with nss-SO42-, and can identify specific local volcanic activities where no nss-SO42-. However, there are few comparable data except for some studies in the Antarctic region related to large-scale volcanic activity, because the F-content of polar snow and ice core is contained in sub-ppb.
In this study, we reconstruct the F- record of 80 m shallow ice core obtained from GV7 (70° 41'S, 158° 52'E, 1950 m) and the main ion components record of 47 m shallow core from Styx (73° 51.10'S, 163° 41.22'E, 1623 m) located in Victoria Land, Antarctica. The concentration range of F- was found to be 0.05 μg / L to 2.12 μg / L in GV7 and 0.04 μg / L to 122 μg in Styx. As a result of calculating the contribution to the main origin of F-, F- showed the highest contribution of volcanoes and other factors (coal burning, etc.) than sea salt or crust. It is believed that the F- influx into Victoria Land mainly comes from volcanoes and other factors.
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URI
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https://repository.kopri.re.kr/handle/201206/12304
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Conference Name
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International Symposium on Antarctic Earth Sciences 2019
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Conference Place
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Songdo Convensia
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Conference Date
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2019.07.22~2019.07.26
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Type
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Poster
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Indexed
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포스터
- Appears in Collections
- 2019-2019, Reconstruction of past climate and environmental changes using high resolution ice core records in Victoria Land, Antarctica (19-19) / Hur, Soon Do (PE19040)
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