Isotopic composition of modern ice wedges and winter precipitation in the Laptev Sea region (Table 2) ...
The first step for the application of stable isotope analyses of ice wedges for the correct paleoclimatic reconstruction supposes the study of the isotopic composition of modern ice wedges and their relationship with the isotopic composition of modern precipitation. The purpose of this research is t...
| Main Authors: | , , , , |
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| Format: | Dataset |
| Language: | English |
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PANGAEA
2002
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.1594/pangaea.418311 https://doi.pangaea.de/10.1594/PANGAEA.418311 |
| Summary: | The first step for the application of stable isotope analyses of ice wedges for the correct paleoclimatic reconstruction supposes the study of the isotopic composition of modern ice wedges and their relationship with the isotopic composition of modern precipitation. The purpose of this research is to present, to analyze and to discuss new data on isotopic composition (d18O, dD, 3H) of modern ice wedges obtained in the Laptev Sea region in 1998-99. Investigations were carried out at two sites: on Bykovsky Peninsula in 1998 and on Bol'shoy Lyakhovsky Island in 1999 and were based on the combined application of both tritium CH) and stable isotope (d18O, dD) analyses. Tritium analyses of the atmospheric precipitation collected during two field seasons show seasonal variations: high tritium concentration in snow (to a maximum of 207 TU) and low values of tritium concentration (<20 TU) in rain. High tritium concentrations are also observed in the surface water, in suprapermafrost ground waters, and in the upper ... : Supplement to: Dereviagin, Alexander Yu; Meyer, Hanno; Chizhov, Alexander B; Hubberten, Hans-Wolfgang; Simonov, Eugeniy F (2002): New data on the isotopic composition and evolution of modern ice wedges in the Laptev Sea region. Polarforschung, 70, 27-35 ... |
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