caa a22 4500 475827465 CHVBK 20180406123832.0 cr unu---uuuuu 170329e20001201xx s 000 0 eng 10.1007/s005310000128 doi (NATIONALLICENCE)springer-10.1007/s005310000128 Changes in the deposition of terrestrial organic matter on the Laptev Sea shelf during the Holocene: evidence from stable carbon isotopes [Elektronische Daten] [T. Mueller-Lupp, H. A. Bauch, H. Erlenkeuser, J. Hefter, H. Kassens, J. Thiede] Abstract.: Stable carbon isotope ratios in the organic fraction of surface sediments from the Laptev Sea shelf were analyzed in order to study the modern distribution pattern of terrestrial organic matter. The δ13Corg signature of the surface sediments range from -26.6‰ near the coastal margin to -22.8‰ in the north towards the outer shelf. Characterizing the possible sources of organic matter by their δ13Corg signature reveals that the terrestrial influence reaches further north in the eastern than in the western Laptev Sea. Downcore records of the δ13Corg, measured on three AMS 14C-dated cores from water depths between 46 and 77m, specify the spatial and temporal changes in the deposition of terrestrial organic matter on the Laptev Sea shelf during the past 12.7ka. The major depositional changes of terrestrial organic matter occurred between 11 and 7ka and comprised the main phase of the southward retreat of the coastline and of the river depocenters due to the postglacial sea level rise. Springer-Verlag, 2000 Stable carbon isotopes Organic carbon Land-shelf interaction Holocene sediments Laptev Sea Siberia nationallicence Mueller-Lupp T. GEOMAR, Research Center for Marine Geosciences, Wischhofstrasse 1-3, 24148 Kiel, Germany aut Bauch H. A. GEOMAR, Research Center for Marine Geosciences, Wischhofstrasse 1-3, 24148 Kiel, Germany aut Erlenkeuser H. Leibniz Laboratory for Radiometric Dating and Stable Isotope Research, Kiel University, 24118 Kiel, Germany aut Hefter J. Alfred Wegener Institute for Polar and Marine Research, 27515 Bremerhaven, Germany aut Kassens H. GEOMAR, Research Center for Marine Geosciences, Wischhofstrasse 1-3, 24148 Kiel, Germany aut Thiede J. Alfred Wegener Institute for Polar and Marine Research, 27515 Bremerhaven, Germany aut https://doi.org/10.1007/s005310000128 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s005310000128 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mueller-Lupp T. GEOMAR, Research Center for Marine Geosciences, Wischhofstrasse 1-3, 24148 Kiel, Germany aut NATIONALLICENCE 700 1- Bauch H. A. GEOMAR, Research Center for Marine Geosciences, Wischhofstrasse 1-3, 24148 Kiel, Germany aut NATIONALLICENCE 700 1- Erlenkeuser H. Leibniz Laboratory for Radiometric Dating and Stable Isotope Research, Kiel University, 24118 Kiel, Germany aut NATIONALLICENCE 700 1- Hefter J. Alfred Wegener Institute for Polar and Marine Research, 27515 Bremerhaven, Germany aut NATIONALLICENCE 700 1- Kassens H. GEOMAR, Research Center for Marine Geosciences, Wischhofstrasse 1-3, 24148 Kiel, Germany aut NATIONALLICENCE 700 1- Thiede J. Alfred Wegener Institute for Polar and Marine Research, 27515 Bremerhaven, Germany aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer