Investigation into the elemental composition of sapropel from Lake Kirek (West Siberia) by SR XFA technique

详细信息    查看全文

• 作者：V. A. Bobrov (1)
  M. A. Fedorin (2)
  G. A. Leonova (1) leonova@uiggm.nsc.ru
  Yu. N. Markova (3)
  L. A. Orlova (1)
  S. K. Krivonogov (1)
• 刊名：Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques
• 出版年：2012
• 出版时间：May 2012
• 年：2012
• 卷：6
• 期：3
• 页码：458-463
• 全文大小：278.1 KB
• 参考文献：1. N. K. Dzhabarova and L. A. Nemerovich-Danchenko, in Resort Resources and Sanatorium Resort Treatment in Siberia (Lito-Print, Tomsk, 1982), p. 31 [in Russian].
  2. G. A. Leonova, V. A. Bobrov, E. V. Lazareva, et al., Lithol. Miner. Resour. 46, 99 (2011).
  3. V. A. Bobrov, M. A. Phedorin, G. A. Leonova, and Yu. P. Kolmogorov, Nucl. Instrum. Methods Phys. Res. A 543, 259 (2005).
  4. A. V. Dar’in, K. V. Zolotarev, I. A. Kalugin, and N. V. Maksimova, Poverkhnost’, No. 12, 45 (2003).
  5. G. A. Leonova, V. A. Bobrov, and E. V. Lazareva, J. Surf. Invest. 4, 678 (2010).
  6. E. L. Goldberg, M. A. Fedorin, E. P. Chebykin, et al., Dokl. Earth Sci. 421, 961 (2008).
  7. K. V. Zolotarev, E. L. Goldberg, V. I. Kondratyev, et al., Nucl. Instrum. Methods Phys. Res. A 470, 376 (2001).
  8. E. L. Goldberg, M. A. Grachev, M. A. Phedorin, et al., Nucl. Instrum. Methods Phys. Res. A 470, 388 (2001).
  9. M. A. Phedorin and E. L. Goldberg, Nucl. Instrum. Methods Phys. Res. A 543, 274 (2005).
  10. Yu.-H. Li, Geochim. Cosmochim. Acta 55, 3223 (1991).
• 作者单位：1. Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia2. Institute of Petroleum Geology and Geophysics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia3. Vinogradov Institute of Geochemistry, Siberian Branch, Russian Academy of Sciences, Irkutsk, Russia
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Surfaces and Interfaces and Thin Films
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1819-7094

文摘

The synchrotron radiation X-ray fluorescence analysis (SRXFA) technique was applied for scanning two sapropel cores: 6.2 m (coordinates of boring 56°11′93″ N, 84°23′22″ E) and 3.6 m (56°10′93″ N, 84°22′94″ E), obtained at a depth of 5 and 7 m, respectively, in Lake Kirek (southern part of Tomsk oblast, West Siberia). Based on variations in the content of eight chemical elements in stratified core horizons, the geochemical types of the sapropels and their prevalence were established. In the sediment of the 6.2-m core within the overall boundaries of the Holocene, low-ferric calcareous sapropel dominates, the geochemical characteristic of which is presented by the average values of 13 chemical elements in the strata grouped by the main climatic periods of the Holocene. Organic-ferrous sapropel 90 cm in depth was uncovered in the 3.6-m core in the range 215–305 cm (age of 7-4 ka). For the other core horizons, the deposit is represented by calcareous sapropel, but with higher contents of iron in comparison with the first type. The geochemical differentiation of these two types of sapropels (in 3.6-m core) is characterized by average contents of 31 chemical elements. The consistency of the compositions and concentrations of chemical elements in sapropels in the Holocene section of the deposits is evidence of the identical formation conditions for these types of sapropel.