빙하코어의 전처리 방법 및 기초 프록시 분석법 확립
Establishment of an Ice Core Processing Method and Analytical Procedures for Fundamental Proxies
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초록
We established the first complete ice core processing method and analytical procedures for fundamental proxies, using a 40.2 m long ice core drilled on the Mt. Tsambagarav glacier in the Mongolian Altai mountains in July 2008. The whole core was first divided into two sub ice core sections and the measurements of the visual stratigraphy and electrical conductivity were performed on the surface of these sub core sections. A continuous sequence of samples was then prepared for chemical analyses (stable isotope ratios of oxygen (18O/16O) and hydrogen (2H/1H), soluble ions and trace elements). A total of 29 insoluble dust layers were identified from the measurement of visual stratigraphy. The electrical conductivity measurement (ECM) shows 11 peaks with the current more than 0.8 μA. Comparing the profiles of SO4 2− and Cl− concentrations to correlate with known volcanic eruptions, the first two ECM peaks appear to be linked to the eruptions (January and June 2007) of Kliuchevskoi volcano on the Kamchatka Peninsula of Russia, which supports the reliability of our ECM data. Finally, the composition of stable isotopes (δ18O and δD) shows a well-defined seasonal variation, suggesting that various chemical proxies may have been well preserved in the successive ice layers of Tsambagarav ice core. Our ice core processing method and analytical procedures for fundamental proxies are expected to be used for paleoclimate and paleoenvironmental studies from polar and alpine ice cores.
Abstract
We established the first complete ice core processing method and analytical procedures for fundamental proxies, using a 40.2 m long ice core drilled on the Mt. Tsambagarav glacier in the Mongolian Altai mountains in July 2008. The whole core was first divided into two sub ice core sections and the measurements of the visual stratigraphy and electrical conductivity were performed on the surface of these sub core sections. A continuous sequence of samples was then prepared for chemical analyses (stable isotope ratios of oxygen (18O/16O) and hydrogen (2H/1H), soluble ions and trace elements). A total of 29 insoluble dust layers were identified from the measurement of visual stratigraphy. The electrical conductivity measurement (ECM) shows 11 peaks with the current more than 0.8 μA. Comparing the profiles of SO4 2− and Cl− concentrations to correlate with known volcanic eruptions, the first two ECM peaks appear to be linked to the eruptions (January and June 2007) of Kliuchevskoi volcano on the Kamchatka Peninsula of Russia, which supports the reliability of our ECM data. Finally, the composition of stable isotopes (δ18O and δD) shows a well-defined seasonal variation, suggesting that various chemical proxies may have been well preserved in the successive ice layers of Tsambagarav ice core. Our ice core processing method and analytical procedures for fundamental proxies are expected to be used for paleoclimate and paleoenvironmental studies from polar and alpine ice cores.
참고문헌 (42)
- 고산빙하, 육상퇴적물 및 기후모델을 이용한 아시아 고기후 복원, "극지연구소", 기상청, 182~, pp.RACS 2010-3007 (2010)
- 빙하코어시료의 용융장치 개발을 통한극미량 proxies 측정 기법 연구, "극지연구소", 한국해양과학기술원 부설 극지연구소, 32~, pp.PK09050 (2010)
- 극한지 빙하시추와 Ice Core Bank 운영을위한 핵심 기술 개발, "극지연구소", 한국해양과학기술원 부설 극지연구소, 733~, pp.BSPP10010-174-7 (2011)
- Aizen VB, "Stable-isotope time series and precipitation origin from firn-core and snow samples, Altai glaciers", Siberia. J Glaciol, 51, pp.637~654 (2005)
- Alley RB, "Visual-stratigraphic dating of the GISP2 ice core: Basic, reproducibility, and application", J Geophys Res, 102, pp.26367~26381 (1997)
- Anders S, "Visual stratigraphy of the North Greenland Ice Core Project (NorthGRIP)ice core during the last glacial period", J Geophys Res, 110, pp.D02108~ (2005)[DOI]
- Boutron CF, "Historical reconstruction of the earth's past atmospheric environment from Greenland and Antarctic snow and ice cores", Environ Rev, 3, pp.1~28 (1995)
- Candelone JP, "An improved method for decontaminating polar snow or ice cores for heavy metal analysis", Anal Chim Acta, 29, pp.9~16 (1994)
- Cole-Dai J, "High speed, high resolution, and continuous chemical analysis of ice cores using a melter and ion chromatography", Environ Sci Technol, 40, pp.6764~6769 (2006)
- Dansgaard W, "Stable isotope in precipitation", Tellus, 14, pp.436~468 (1964)
- Eichler A, "An ice-core based history of Siberian forest fires since AD 1250", Quat Sci Rev, 30, pp.1027~1034 (2011)
- Enkhtaivan, "Environmental Security and Sustainable Land Use - with special reference to Central Asia", pp.349~351 (2006), NATO Security through Science Series
- Glen JW, "The electrical properties of snow and ice", J Glaciol, 15, pp.15~38 (1975)
- Gupta P, "Demonstration of high-precision continuous measurements of water vapor isotopologues in laboratory and remote field deployments using wavelength-scanned cavity ring-down spectroscopy (WS-CRDS) technology", Rapid Commun Mass Sp, 23, pp.2534~2542 (2009)
- Hammer CU, "Acidity of polar ice core in relation to absolute dating, past volcanism, and radio-echoes", J Glaciol, 25, pp.359~372 (1980)
- Hammer CU, "Electrical conductivity method (ECM) stratigraphic dating of the Byrd Station ice core", Antarctica. Ann Glaciol, 20, pp.115~120 (2004)
- Hong S, "A clean protocol for determining ultralow heavy metal concentrations: its application to the analysis of Pb, Cd, Cu, Zn and Mn in Antarctic snow", Korean J Pol Res, 11, pp.35~47 (2000)
- Hong S, "Climate-related variations in lead concentrations and sources in Vostok Antarctic ice from 65,000 to 240,000 years BP", Geophys Res Lett, 30, pp.2138~ (2003)[DOI]
- Hong S, "Past natural changes in Cu, Zn and Cd in Vostok Antarctic ice dated back to the penultimate interglacial period", Geophys Res Lett, 31, pp.L20111~ (2004)[DOI]
- Hong S, "An 800-year record of atmospheric As, Mo, Sn, and Sb in central Asia in high-altitude ice cores from Mt. Qomolangma (Everest), Himalayas", Environ Sci Technol, 43, pp.8060~8065 (2009)
- Hong SB, "Development of advanced melting system for measurement of trace elements and ions in ice core", J Glaciol (Submitted) (2014)
- Hur SD, "Climate-related variations in atmospheric Sb and Tl in the EPICA Dome C ice (East Antarctica) during the past 800,000 years", Global Biogeochem Cy, 27, pp.930~940 (2013)
- Kadota T, "Recent glacier variations in Mongolia", Ann Glaciol, 46, pp.185~188 (2007)
- Kang S, "Dust records from three ice cores: relationships to spring atmospheric circulation over the Northern Hemisphere", Atmos Environ, 37, pp.4823~4835 (2003)
- Kellerhals T, "Thallium as a tracer for preindustrial volcanic eruptions in an ice core record from Illimani, Bolivia", Environ Sci Technol, 44, pp.888~893 (2010)
- Kinnard C, "Stratigraphic analysis of an ice core from the Prince of Wales Icefield, Ellesmere Island, Arctic Canada, using digital image analysis: High-resolution density, past summer warmth reconstruction, and melt effect on ice core solid conductivity", J Geophys Res, 113, pp.D24120~ (2008)[DOI]
- Koerner RM, "Some comment on climatic reconstructions from ice cores drilled in areas of high melt", J Glaciol, 43, pp.90~97 (1997)
- Kreutz KJ, "Oxygen isotopic and soluble ionic composition of a shallow firn core, Inilchek glacier, central Tien Shan", J Glaciol, 47, pp.548~554 (2001)
- Lee K, "Atmospheric pollution for trace elements in the remote high-altitude atmosphere in central Asia as recorded in snow from Mt. Qomolangma (Everest) of the Himalayas", Sci Total Environ, 404, pp.171~181 (2008)
- Lee K, "Isotopic signatures for natural versus anthropogenic Pb in high-altitude Mt. Everest ice cores during the past 800 years", Sci Total Environ, 412-413, pp.194~202 (2011)
- Legrand M, "Glaciochemistry of polar ice cores: A review", Rev Geophys, 35, pp.219~243 (1997)
- McConnell JR, "Continuous ice-core analyses using inductively coupled plasma mass spectrometry", Environ Sci Technol, 36, pp.7~11 (2002)
- Moore JC, "Dielectric stratigraphy of ice: A new technique for determining total ionic concentrations in polar ice cores", Geophys Res Lett, 16, pp.1177~1180 (1989)
- Olivier S, "Temporal variations of mineral dust, biogenic tracers, and anthropogenic species during the past two centuries from Belukha ice core, Siberian Altai", J Geophys Res, 111, pp.D05309~ (2006)[DOI]
- Osterberg EC, "Continuous ice core melter system with discrete sampling for major ion, trace element, and stable isotope analyses", Environ Sci Technol, 40, pp.3355~3361 (2006)
- Schotterer U, "Isotope records from Mongolian and alpine ice cores as climate indicators", Climatic Change, 36, pp.519~530 (1997)
- Schotterer U, "Earth Paleoenvironments:Records Preserved in Mid- and Low-Latitude Glaciers, Developments in Paleoenvironmental Research, Volume 9", pp.39~60 (2004), Kluwer Academic Publishers
- Shuji F, "Ice core processing at Dome Fuji Station, Antractica", Mem Natl Inst Polar Res, 56, pp.275~286 (2002)
- Stauffer B, "New Methods in Ice Core Processing", Proceeding of the Third International Workshop on Ice Drilling Technology, pp.151~157 (1988), US Ice Drilling Program
- Tian L, "Recent rapid warming trend revealed from the isotopic record in Muztagata ice core, eastern Pamirs", J Geophys Res, 111, pp.D13103~ (2006)[DOI]
- Thompson LG, "“Recent warming”: ice core evidence from tropical ice cores with emphasis on Central Asia", Global Planet Change, 7, pp.145~156 (1993)
- Wake CP, "Regional distribution of monsoon and desert dust signals recorded in Asian glaciers", Geophys Res Lett, 20, pp.1411~1414 (1993)