530
Land-Ocean SYstems in the Siberian Arctic: Dynamics and History
160 ,-----~~~~
~
140
• 140
Ii:.=:-' 120
g.;,., 100
;'§ 80
.80
.~ Jl 60"In 0
40
.20
!=. 20
unaO~~--~~~~~-- ~~~~~~~-•
PM9482-1.
PM9463-8
Schelf
•
PM9462-1
Kontinentalhang
•
PS2471-4
Figure 11: Depositional lOBe fluxes in the shelf area of the Laptev Sea and on the continental slope.
Conclusions
We conclude that the rivers are the main source of lOBe in the shelf areas of the Arctic Ocean.
From the comparison of the fluxes of lOBe in the central Arctic Ocean, on the continental slope
and in the shelf area of the Laptev Sea we further conclude that most of the lOBe delivered to
the shelf area by the rivers Lena, Yana and Kathanga must be deposited directly in the shelf
area.
Acknowledgments
The financial support by the German Ministry of Education, Science, Research and Technology
(BMBF) is gratefully acknowledged. The authors want to thank M. v. de Loeff, 1. Scholten, T.
Eisenhauer and T. Billen for sampling and the availabiltity of water samples from the central
Arctic Ocean, the Norwegian- and Greenland Sea. The chemical preparation and measurement
of the water samples from the Norwegian- and Greenland Sea were done by R.J. Rutsch and
M. Frank.
References
Arnold, T. (1989) Bestimmung von Mischungskoeffizienten in der Norwegischen See mit 210Pb. Diplomarbeit
Universitat Heidelberg.
Baumann, M. (1990) Coccoliths in sediments of the eastern Arctic Basin. In: Geological History of the Polar
Ocean: Arctic versus Antarctic, NATO Series C, Mathematical and Physical Sciences, Bleil, U. and J. Thiede
(eds), 308, 437-445.
Benninger, L.K, R.C. Aller, J.K. Cochran, and K.K. Turekian (1979) Effects of biological sediment mixing on
the 2lOPb chronology and trace metal distribution in a Long Island Sound sediment core. Earth Planet. Sci.
Lett., 43, 241-259.
Berner, R.A. (1980) Early diagenesis - a theoretical approach. Princeton University Press, Princeton.
Bollhoefer, A., A. Mangini, A. Lenhard, M. Wessels, F. Giovanoli and B. Schwarz (1994) High-Resolution
21OPb-Dating of Lake Constance Sediments; Stable Lead in Lake Constance. Environ. Geo!., 24, 267-274.
Doerr, H. and K.O. Muennich (1991) Lead and Cesium Transport in European Forest Soils. Water Air and Soil
Pollution, 57-58, 808-818.
Dominik, J., A. Mangini and G. Mueller (1981) Determination of recent deposition rates in Lake Constance
with radioisotopic methods. Sedimentology, V28, 653-677.
Land-Ocean SYstems in the Siberian Arctic: Dynamics and History
160 ,-----~~~~
~
140
• 140
Ii:.=:-' 120
g.;,., 100
;'§ 80
.80
.~ Jl 60"In 0
40
.20
!=. 20
unaO~~--~~~~~-- ~~~~~~~-•
PM9482-1.
PM9463-8
Schelf
•
PM9462-1
Kontinentalhang
•
PS2471-4
Figure 11: Depositional lOBe fluxes in the shelf area of the Laptev Sea and on the continental slope.
Conclusions
We conclude that the rivers are the main source of lOBe in the shelf areas of the Arctic Ocean.
From the comparison of the fluxes of lOBe in the central Arctic Ocean, on the continental slope
and in the shelf area of the Laptev Sea we further conclude that most of the lOBe delivered to
the shelf area by the rivers Lena, Yana and Kathanga must be deposited directly in the shelf
area.
Acknowledgments
The financial support by the German Ministry of Education, Science, Research and Technology
(BMBF) is gratefully acknowledged. The authors want to thank M. v. de Loeff, 1. Scholten, T.
Eisenhauer and T. Billen for sampling and the availabiltity of water samples from the central
Arctic Ocean, the Norwegian- and Greenland Sea. The chemical preparation and measurement
of the water samples from the Norwegian- and Greenland Sea were done by R.J. Rutsch and
M. Frank.
References
Arnold, T. (1989) Bestimmung von Mischungskoeffizienten in der Norwegischen See mit 210Pb. Diplomarbeit
Universitat Heidelberg.
Baumann, M. (1990) Coccoliths in sediments of the eastern Arctic Basin. In: Geological History of the Polar
Ocean: Arctic versus Antarctic, NATO Series C, Mathematical and Physical Sciences, Bleil, U. and J. Thiede
(eds), 308, 437-445.
Benninger, L.K, R.C. Aller, J.K. Cochran, and K.K. Turekian (1979) Effects of biological sediment mixing on
the 2lOPb chronology and trace metal distribution in a Long Island Sound sediment core. Earth Planet. Sci.
Lett., 43, 241-259.
Berner, R.A. (1980) Early diagenesis - a theoretical approach. Princeton University Press, Princeton.
Bollhoefer, A., A. Mangini, A. Lenhard, M. Wessels, F. Giovanoli and B. Schwarz (1994) High-Resolution
21OPb-Dating of Lake Constance Sediments; Stable Lead in Lake Constance. Environ. Geo!., 24, 267-274.
Doerr, H. and K.O. Muennich (1991) Lead and Cesium Transport in European Forest Soils. Water Air and Soil
Pollution, 57-58, 808-818.
Dominik, J., A. Mangini and G. Mueller (1981) Determination of recent deposition rates in Lake Constance
with radioisotopic methods. Sedimentology, V28, 653-677.