570
Land-Ocean Systems in the Siberian Arctic: Dynamics and History
Abelmann (1992) reported brackish diatoms from sea-ice samples along a transect between
the outer Barents Shelf and the northern flank of the Gakkel Ridge and suggested that they
might be incorporated into sea ice in the Laptev Sea region. Matthiessen (1995) also assumed
that the Pediastrum and Halodinium occurrence in surface sediments from the Iceland and
Greenland seas is due to the transport of sea ice in the Transpolar Drift and the East Greenland
current from the Laptev Sea across the eastern Arctic Ocean. Therefore, chlorococcalean algae
can be useful indicators for both paleo-river discharge and sea-ice transport.
Acknowledgements
I thank J. Thiede and H. Kassens for the possibility to join the Russian-German project
"System Laptev Sea", the opportunity to participate in the Transdrift Expeditions and their great
interest in this investigation. I thank also P. Mudie, W. Brenner and 1. Matthiessen for
constructive reviews. The Alfred Wegener Institute is thanked for providing surface samples of
"Polarstern" Expedition ARK-IXl4. This research is supported by the Ministry for Education,
Science, Research and Technology (BMBF).
References
Abelmann, A. (1992) Diatom assemblages in Arctic sea ice - indicator for ice drift pathways. Deep-Sea Res., 39
(2), 525-538.
Barss, M.S. and G.L. Williams (\973) Palynology and nannofossil processing techniques. Geol. Surv. Can.,
paper 73-26, 1-25.
Cremer, H. (1998) Die Diatomeen der Laptevsee (Arktischer Ozean): Taxonomie, biogeographische Verbreitung
und ozeanographische Bedeutung. Ber. Polarforsch., 260, 205 pp.
Dale, B. (1976) Cyst formation, sedimentation and preservation: factors affecting dinoflagellate assemblages in
recent sediments from Trondheimsfjord, Norway. Rev. Palaeobot. Palynol., 22, 39-60.
Dethlef, D., D. Niirnberg, M. Reimnitz, M. Saarso and Y.P. Savchenko (1993) East Siberian Arctic Region
Expedition '92: The Laptev Sea - Its significance for Arctic sea-ice formation and transpolar sediment flux.
Ber. Polarforsch., 120, 1-44.
De Vernal. A., G. Bilodeau, C. Hillaire-Marcel and N. Kassou (1992) Quantitative assessment of carbonate
dissolution in marine sediments from foraminifer linings vs. shell ratios: Davis Strait, northwest North
Atlantic. Geology, 20, 527-530.
De Vernal, A., C. Hillaire-Marcel and G. Bilodeau (\996) Reduced meltwater outflow from the Laurentide ice
margin during the Younger Dryas. Nature, 381, 774-777.
De Vernal, A., J.-L. Turon and J. Guiot (1994) Dinoflagellate cyst distribution in high-latitude marine
environments and quantitative reconstruction of sea-surface salinity, temperature and seasonality. Can. J.
Earth Sci., 31, 48-62.
Dmitrenko, I.A., V.I. Karpiy and N.V. Lebedev (1994) The modern Environment of the Laptev Sea:
Oceanographic studies. In: Laptev Sea System: Expeditions in 1994, Kassens, H. (ed.), Ber.
Polarforsch.,182,22-33.
Doher, L.I. (1980) Palynomorph preparation procedures currently used in the paleontology and stratigraphy
laboratories, U. S. Geological Survey. Geol. Surv. Circ., 830, 29.
Eicken, H., E. Reimnitz, V. Alexandrov, T. Martin, H. Kassens and T. Viehoff (1997) Sea-ice processes in the
Laptev Sea and their importance for sediment export. Conti. Shelf Res., 17 (2), 205-233.
Evitt, W.R. (1985) Sporopollenin dinoflagellates cysts: their morphology and interpretation. Am. Assoc. Strat.
Palynol., 333 pp.
Fiitterer, D.K. (1994) The Expedition ARCTIC '93 Leg ARK-IX/4 ofRV "Polarstern" 1993. Ber. Polarforsch.,
149, 244 pp.
Gordienko, P.A. and A.F. Laktionov (1969) Circulation and physics of the Arctic Basin water. In: Annals f the
international geophysical year, oceanography, Gordon, A.L. and F.W.G. Baker (eds.), Pergamon, New York,
46,94-112.
Harland, H. (1982) Recent dinoflagellate cyst assemblages from the southern Barents Sea. Palynology, 6, 9-18.
Holmes, M.L. and J.S. Creager (1974) Holocene history of the Laptev Sea continental shelf. In: Marine Geology
and Oceanography of the Arctic Sea, Herman, Y. (ed.), Springer, New York, 211-229.
Kassens, H. (1995) Laptev Sea System: Expeditions in 1994. Ber. Polarforsch., 182, 195 pp.
Kassens, H. (1997) Laptev Sea System: Expeditions in 1995. Ber. Polarforsch., 248, 2\0 pp.
Land-Ocean Systems in the Siberian Arctic: Dynamics and History
Abelmann (1992) reported brackish diatoms from sea-ice samples along a transect between
the outer Barents Shelf and the northern flank of the Gakkel Ridge and suggested that they
might be incorporated into sea ice in the Laptev Sea region. Matthiessen (1995) also assumed
that the Pediastrum and Halodinium occurrence in surface sediments from the Iceland and
Greenland seas is due to the transport of sea ice in the Transpolar Drift and the East Greenland
current from the Laptev Sea across the eastern Arctic Ocean. Therefore, chlorococcalean algae
can be useful indicators for both paleo-river discharge and sea-ice transport.
Acknowledgements
I thank J. Thiede and H. Kassens for the possibility to join the Russian-German project
"System Laptev Sea", the opportunity to participate in the Transdrift Expeditions and their great
interest in this investigation. I thank also P. Mudie, W. Brenner and 1. Matthiessen for
constructive reviews. The Alfred Wegener Institute is thanked for providing surface samples of
"Polarstern" Expedition ARK-IXl4. This research is supported by the Ministry for Education,
Science, Research and Technology (BMBF).
References
Abelmann, A. (1992) Diatom assemblages in Arctic sea ice - indicator for ice drift pathways. Deep-Sea Res., 39
(2), 525-538.
Barss, M.S. and G.L. Williams (\973) Palynology and nannofossil processing techniques. Geol. Surv. Can.,
paper 73-26, 1-25.
Cremer, H. (1998) Die Diatomeen der Laptevsee (Arktischer Ozean): Taxonomie, biogeographische Verbreitung
und ozeanographische Bedeutung. Ber. Polarforsch., 260, 205 pp.
Dale, B. (1976) Cyst formation, sedimentation and preservation: factors affecting dinoflagellate assemblages in
recent sediments from Trondheimsfjord, Norway. Rev. Palaeobot. Palynol., 22, 39-60.
Dethlef, D., D. Niirnberg, M. Reimnitz, M. Saarso and Y.P. Savchenko (1993) East Siberian Arctic Region
Expedition '92: The Laptev Sea - Its significance for Arctic sea-ice formation and transpolar sediment flux.
Ber. Polarforsch., 120, 1-44.
De Vernal. A., G. Bilodeau, C. Hillaire-Marcel and N. Kassou (1992) Quantitative assessment of carbonate
dissolution in marine sediments from foraminifer linings vs. shell ratios: Davis Strait, northwest North
Atlantic. Geology, 20, 527-530.
De Vernal, A., C. Hillaire-Marcel and G. Bilodeau (\996) Reduced meltwater outflow from the Laurentide ice
margin during the Younger Dryas. Nature, 381, 774-777.
De Vernal, A., J.-L. Turon and J. Guiot (1994) Dinoflagellate cyst distribution in high-latitude marine
environments and quantitative reconstruction of sea-surface salinity, temperature and seasonality. Can. J.
Earth Sci., 31, 48-62.
Dmitrenko, I.A., V.I. Karpiy and N.V. Lebedev (1994) The modern Environment of the Laptev Sea:
Oceanographic studies. In: Laptev Sea System: Expeditions in 1994, Kassens, H. (ed.), Ber.
Polarforsch.,182,22-33.
Doher, L.I. (1980) Palynomorph preparation procedures currently used in the paleontology and stratigraphy
laboratories, U. S. Geological Survey. Geol. Surv. Circ., 830, 29.
Eicken, H., E. Reimnitz, V. Alexandrov, T. Martin, H. Kassens and T. Viehoff (1997) Sea-ice processes in the
Laptev Sea and their importance for sediment export. Conti. Shelf Res., 17 (2), 205-233.
Evitt, W.R. (1985) Sporopollenin dinoflagellates cysts: their morphology and interpretation. Am. Assoc. Strat.
Palynol., 333 pp.
Fiitterer, D.K. (1994) The Expedition ARCTIC '93 Leg ARK-IX/4 ofRV "Polarstern" 1993. Ber. Polarforsch.,
149, 244 pp.
Gordienko, P.A. and A.F. Laktionov (1969) Circulation and physics of the Arctic Basin water. In: Annals f the
international geophysical year, oceanography, Gordon, A.L. and F.W.G. Baker (eds.), Pergamon, New York,
46,94-112.
Harland, H. (1982) Recent dinoflagellate cyst assemblages from the southern Barents Sea. Palynology, 6, 9-18.
Holmes, M.L. and J.S. Creager (1974) Holocene history of the Laptev Sea continental shelf. In: Marine Geology
and Oceanography of the Arctic Sea, Herman, Y. (ed.), Springer, New York, 211-229.
Kassens, H. (1995) Laptev Sea System: Expeditions in 1994. Ber. Polarforsch., 182, 195 pp.
Kassens, H. (1997) Laptev Sea System: Expeditions in 1995. Ber. Polarforsch., 248, 2\0 pp.