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Research Field

Government Commissioned Projects

Explore the end of the world

Crustal Evolution of Cictoria Land, Antarctica, and the Formative Process of Planets 이미지
Ministry of Oceans and Fisheries Crustal Evolution of Cictoria Land, Antarctica, and the Formative Process of Planets
Research period 2014/09 ~ 2017/05
Responsible person Jong Ik Lee

Detail


Tracking the Formative Process of the Earth and the Solar System through Antarctic Meteorites and Rocks



Crustal Evolution of Cictoria Land, Antarctica, and the Formative Process of Planets



Jong Ik Lee jilee@kopri.re.kr




The current shape of Antarctica was formed by the collision and break-up of the landmasses, and such formative processes are recorded in the rocks of Antarctica. Antarctica is also a repository of meteorites and cosmic dust that record the formation and evolution of the solar system.


This study aims to unveil the evolutionary history of the Antarctic continent and planets in general, by collecting meteorites and geological information through a research expedition to Antarctica. In the austral summer 2016/2017, the expedition to Mount Melbourne located 30km north of the Jang Bogo Station conducted a survey on the volcanic gas and volcanic ashes. A base camp was established at the Ricker Hills (ca. 180km southwest from the Jang Bogo Station) with the aim to conduct sedimentological and paleontological field works on the Mesozoic strata.


A total of 460 meteorites were recovered from the blue ice field near Elephant Moraine (ca. 280km southwest from the Jang Bogo Station) and 600kg of clean snow was sampled to collect cosmic dust.


Antarctic rocks and meteorites are being analyzed at KOPRI using SEM, FE-EPMA, ICP-MS, isotope ratio mass spectrometer, and noble gas mass spectrometer. The results from the volcanic rocks and ashes will be analyzed to yield insight into the Cenozoic eruption history of Mount Melbourne.


The results from the meteorites will be used for delineating their origins and ages with emphasis on their implication on the formation of the planets in the solar system.Rocks and fossil wood samples from the Ricker Hills will form a suite of data for the reconstruction of the Mesozoic paleoenvironments in Antarctica.


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Figure 1. Recovering meteorites on the blue ice area near Elephant Moraine.


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Figure 2. volcanic gas survey on the rim around the crater of Mount Melbourne






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