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Holocene Volcanic Activity of Mt. Melbourne Recorded in Talos Dome Ice Core

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Title
Holocene Volcanic Activity of Mt. Melbourne Recorded in Talos Dome Ice Core
Other Titles
남극 탈로스 돔 얼음 코어에 기록된 홀로세 멜버른 화산 분출
Authors
Lee, Mi Jung
Kyle, Philip
Lee, Jong Ik
Issue Date
2018
Citation
Lee, Mi Jung, PHILIP KYLE, Lee, Jong Ik. 2018. Holocene Volcanic Activity of Mt. Melbourne Recorded in Talos Dome Ice Core. POLAR 2018. Congress Centre Davos. 2018.06.15~2018.06.26.
Abstract
Tephra layers in Antarctic ice cores are valuable time planes and are useful for reconstructing the eruptive history of young volcanic centers. An ice core drilled at Talos Dome in northern Victoria Land contains many tephra layers and some have been attributed to eruptions from Mt. Melbourne. Three young englacial tephra layers are exposed on the flanks of Melbourne volcano. The youngest tephra is inferred from snow accumulation rates to be between 100 and 300 years old. The other two tephra are over 1 m thick and closely spaced to each other and probably represent two significant eruptions from the same vent. We geochemically analyzed the two older tephra and young lavas from the summit area of Melbourne to try and identify the source vent for the tephra. The tephra have a strong geochemical correlation with the Talos Dome tephra layer TD85, which suggests they are the same. This is an important finding as it indicates that significant eruptions of Melbourne occurred at 1280 CE. The youngest tephra on Melbourne is not found in the Talos Dome ice core, suggesting the eruption was smaller than that for the 1280 CE tephra or the wind direction did not disperse the tephra towards Talos Dome.
URI
https://repository.kopri.re.kr/handle/201206/12596
Conference Name
POLAR 2018
Conference Place
Congress Centre Davos
Conference Date
2018.06.15~2018.06.26
Appears in Collections  
2017-2018, Characterizing mantle domain beneath West Antarctic Rift System and Antarctic mid-ocean ridges (17-18) / Park, Yongcheol (PE17050; PE18050)
2018-2018, Characterizing mantle domain beneath West Antarctic Rift System and Antarctic mid-ocean ridges (18-18) / Park, Yongcheol (PE18050)
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