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Establishment of an Ice Core Processing Method and Analytical Procedures for Fundamental Proxies

Cited 1 time in scopus
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Title
Establishment of an Ice Core Processing Method and Analytical Procedures for Fundamental Proxies
Authors
Jun, Seong Joon
Hong, Sang-Bum
Hur, Soon Do
Lee, Jeonghoon
Kang, Jung-Ho
Hwang, Heejin
Chung, Ji Woong
Jung, Hye Jin
Han, Changhee
Hong, Sungmin
Subject
Oceanography
Keywords
Ice core processing; Fundamental proxies; Electrical Conductivity Measurement (ECM); Visual Stratigraphy (VS); Stable water isotopes
Issue Date
2014
Citation
Jun, Seong Joon, et al. 2014. "Establishment of an Ice Core Processing Method and Analytical Procedures for Fundamental Proxies". Ocean and Polar Research, 36(1): 13-24.
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 SO42- 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.
DOI
http://dx.doi.org/10.4217/OPR.2014.36.1.013
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