Data Publications

δ13C(organic), C/N mass ratios and %TOC for Continent Ridge core CON01-603-5

  • SDDB
  • Vereshchagin Long Cores Expedition 2001
  • High-resolution CONTINENTal paleoclimate record in Lake Baikal
  • 2006-09-15
  • δ13C(organic), C/N mass ratios and %TOC for Continent Ridge core CON01-603-5
  • 10.1594/GFZ.SDDB.1053
  • age (calendar years)
  • total organic carbon
  • δ13C
  • Carbon/Nitrogen ratio
  • 10.1016/j.gloplacha.2004.09.019 G.E.A. Swann, A.W. Mackay, M.J. Leng and F. Demory, Climatic change in Central Asia during MIS 3/2: a case study using biological responses from Lake Baikal, Glob. Planet. Change 46 (2005), pp. 235–253.
  • C/N mass ratios remain constant throughout MIS 3 and into MIS 2, with values between 6.3 and 8.9, indicating no significant terrestrial input of organic matter (Fig. 3). Low %TOC values during the interstadial increase from 0.4 to 0.7 between 57.8 and 43.7 kyr BP with a concurrent gradual increase in δ13C(organic) amid oscillations between −23.2‰ and −26.1‰ (Fig. 3). %TOC falls to 0.4 between 40.9 and 39.4 kyr BP whereas δ13C(organic) remains high at c. 24‰ with a peak value of −23.6‰ at 39.4 kyr BP. The subsequent two-stage increase in %TOC from 39 to 37.9 kyr BP and between 37.3 and 36.9 kyr BP is marked by a period of δ13C(organic) lowering to c. −26.6‰ before δ13C(organic) increases after 37.9 kyr BP to −24.8‰, values comparable to those prior to the %TOC decline at 40.9 kyr BP.
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