Glacial history and paleoceanographic changes of the western Arctic Ocean (Mendeleev Ridge) using beryllium isotopes
- Glacial history and paleoceanographic changes of the western Arctic Ocean (Mendeleev Ridge) using beryllium isotopes
- Other Titles
- 베릴륨 동위원소를 이용한 서북극해 멘델레프해령에서의 빙하역사와 고해양변화
- Lee, Mi Jung
Kim, Kyeong J.
- 10Be signals; AMS 14 ages; Arctic Ocean; Paleoclimate; proxy
- Issue Date
- Lee, Mi Jung, et al. 2011. Glacial history and paleoceanographic changes of the western Arctic Ocean (Mendeleev Ridge) using beryllium isotopes. IASC. IASC. 2011.12.05~.
- Beryllium isotopes have been used as a proxy to understand paleoclimate signals which
correspond well with oxygen isotope stages. Previous publications related with this
aspect are well established in the science community related to paleoclimate change for
both marine and lake environments [Aldahan et al., 1997]. In general, for warmer period,
both the concentrations of beryllium isotopes were relatively higher than during colder
period. Our recent investigation for the East Sea, Korea also shows this trend clearly
although the characteristics of marine environmental setting and sediment accumulation
are still revealed through the pattern of these isotopes as a proxy representing the
regional climatic environment [Kim and Nam, 2010]. A new investigation of paleoclimate
and environmental changes using beryllium isotopes for the Mendeleev Ridge of the
western Arctic Ocean was accomplished using the 39 cm-long box core sediment (PS72/396-3
GKG) which was recovered during the Polarstern ARK23/3 Expedition in 2008. The age of
core PS72/396-3 seems to be back to MIS 5.1 based on lithostratigarphy (well known brown-
gray colour and pink layers), AMS 14C ages and oxygen and carbon isotopes of planktonic
foraminifer N. pachyderma sin.
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