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Age control of sediment cores GIK17049-4 and GIK17049-6

Authors
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PANGAEA
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Disciplines
  • Archaeology
  • Earth Science

Abstract

17049-4 B.C. N 55° 16.02' W 26° 43.37': 3329 m. b.s.l. 17049-6 P.C. N 55° 15.60' W 26° 43.53': 3331 m. b.s.l. Age control: Date : 09/2000 • C. wuellerstorfi, G. bulloides, and N. pachyderma sin. 18O records from Jung (1996), Trauth (1995) and van Kreveld (unpublished). • AMS 14C dating on G. bulloides and N. pachyderma sin. from Jung (1996) and M. Weinelt (1997, unpublished) (Aarhus and Leibniz Labor, Kiel). Core fit : • 0 cm in core -6 = 0 cm in core -4, based on 18O record of G. bulloides . Surface sediment age : • Zero, based on undisturbed sediment surface of B.C. -4. Age/depth correlation core -6: depth 14C age Error ± Calendar Sed.rate Original interval/ material/ Remarks [cm] [ky BP] [ka] [cm/ky] 18O stratigraphy 0.0 0.0 assumed 12.5 1.91 50 1.18 a) - . - AMS 14C dating G. bulloides 47.5 5.01 80 5.74 a) 7.7 AMS 14C dating G. bulloides 57.5 6.42 80 7.410 a) 6.0 AMS 14C dating G. bulloides 92.5- 97.5 6.43 120 7.414 a) AMS 14C dating G. bulloides 110-119 cm laminated sediments 120 10.15 200 11.89 a) - . - AMS 14C dating G. bulloides 120 11.82 210 13.83 a) - . - AMS 14C dating N. pachy. sin 130 12.14 160 14.11 a) 35.7 AMS 14C dating N. pachy. sin 145 14.75 220 17.65 a) 4.2 AMS 14C dating N. pachy. sin 150 14.8 18.3 7.7 AMS 14C analogue 210 27.8 360 33 a) 4.1 AMS 14C dating N. pachy. sin a) Calendar years converted from 14 C years using INTCAL 98. Remarks : • Dry bulk density measurements (K. Winn, unpublished). • 18O values of G. bulloides have been corrected by 0.4‰ because of a systematic measurement deviation (K. Winn, unpublished). • 18O values of N. pachyderma sin. are strongly biased by bioturbation at 65-110 cm comp. depth. Original references: • Jung, S. A. (1996): Wassermassenaustausch zwischen dem NE-Atlantik und dem Europäischen Nordmeer während der letzten 300.000/80.000 Jahre im Abbild stabiler O- und C-Isotope.- Ber. SFB 313, Univ. Kiel, 61, 104 pp. • Trauth, M. (1995): Bioturbate Signalverzerrung hochauflösender paläozeanogra

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