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Elverhøi, Anders; Solheim, Anders
Publisher: Co-Action Publishing
Journal: Polar Research
Languages: English
Types: Article
Subjects:
Sediment sampling and shallow seismic profiling in the western and northern Barents Sea show that the bedrock in regions with less than 300 m water depth is unconformably overlain by only a thin veneer (< 10 m) of sediments. Bedrock exposures are probably common in these areas. The sediments consist of a Holocene top unit, 0.1-1.5 m in thickness, grading into Late Weichselian glaciomarine sediments. Based on average sedimentation rates (14C-dating) of the Holocene sediments, the transition between the two units is estimated to 10,00~12,000 B.P. The glaciomarine sediments are commonly 1-3 m in thickness and underlain by stiff pebbly mud, interpreted as till and/or glaciomarine sediments overrun by a glacier. In regions where the water depth is over 300 m the sediment thickness increases, exceeding 500 m near the shelf edge at the mouth of Bj0rnByrenna. In Bjbrn0yrenna itself the uppermost 15-20m seem to consist of soft glaciomarine sediments underlain by a well-defined reflector, probably the surface of the stiff pebbly mud. Local sediment accumulations in the form of moraine ridges and extensive glaciomarine deposits (20-60m in thickness) are found at 250-300m water depth, mainly in association with submarine valleys. Topographic highs, probably moraine ridges, are also present at the shelf edge. Based on the submarine morphology and sediment distribution, an ice sheet is believed to have extended to the shelf edge at least once during the Pleistocene. Spitsbergenbanken and the northern Barents Sea have also probably been covered by an ice sheet in the Late Weichselian. Lack of suitable organic material in the glacigenic deposits has prevented precise dating. Based on the regional geology of eastern Svalbard, a correlation of this younger stage with the Late Weichselian is indicated.
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    • Andersen, B . G . 1968: Glacial geology of western Troms, north Norway. Nor. Geol. Unders. 256, 160 pp,
    • Andersen, B . G . 1981: Late Weichselian ice sheets in Eurasia and Greenland. Pp. 1-65 in Denton, G . H. & Hughes, T. J. (eds.), The Last Great Ice Sheets, John Wiley & Sons.
    • Baranowski, S. 1977: The subpolar glaciers of Spitsbergen seen against the climate of this region. Wroclaw, Wydawnrctwa Uniuersyfetu Wrochawskeiyo. Results of inuestigation of the Polish scientific Spitsbergen Expenditions 3 , 93 pp.
    • Bjdrlykke, K . , Bue, B. & Elverhdi, A . 1978: Quaternary sediments in the northwestern part of the Barents Sea and their relation to the underlying Mesozoic bedrock. Sedimentology 25, 227-246.
    • Boulton, G . S . 1979a: Glacial history of the Spitsbergen archipelago and the problem of a Barents shelf ice sheet. Eoreus 8 , 31-57.
    • Boulton, G. S . 1979b: A model of Weichselian glacier variation in the North Atlantic region. Eoreas 8, 37S395.
    • Damuth, J. E . 1978: Echo character of the Norwegian-Greenland Sea: Relationship to Quaternary sedimentation. Marine Geology 28, 1-36.
    • Denton, G . H. & Hughes, T . J. 1981: The Arctic ice sheet: An outrageous hypothesis. Pp. 437-467 in Denton, G . H. & Hughes, T. J . (eds.), The Last Great Ice Sheets, John Wiley & Sons.
    • Dibner, V. D . 1968: 'Ancient clays' and the relief of the Barents-Kara shelf as direct proof of its sheet glaciation during the Pleistocene. Pp. 1 2 4 1 2 8 in Belov, M. I . (ed.), Problems of Polar Geography, Trudy 285.
    • Dreimanis, A . 1978: Till and tillite. Pp. 805-810 in Fairbridge. R. W. & Bourgeois, J. (eds.), Encyclopedia of Sedimentology Encyclopedice of Earth Sciences Series 6.
    • Elverhdi, A . & Kristoffersen, Y. 1977: Glacial deposits southeast of Bjdrndya, northwestern part of the Barents Sea. Norsk Polarinstitutt Arbok 1977, 2 W 2 1 5 .
    • Elverhdi, A. & Bomstad, K. 1980: Late Weichselian glacial and glaciomarine sedimentation in the western, central Barents Sea. Unpubl. rep., Norsk Polarinstitutt, 1980. 29 pp.
    • Grosswald, M. G. 1972: Glacier variations and crustal movements in northern European Russia in late Pleistocene and Holocene times. Pp. 205-221 in Vasari, Y . , Hyvarinen, H. & Hicks, S . (eds.), Climactic Changes in Arctic Areas during the Last Ten-thousand Years. Acta Unioersitatis Ouluensis, Oulu, Finland 1972.
    • Grosswald, M. G. 1980: Late Weichselian ice sheet of northern Eurasia. Quaternary Research 13, 1-32.
    • Grosswald, M. G., Lavrov, A . S . & Potapenco, L. M. 1974: The Markhida-Velt ice advance: A twin-surge of the Barents Ice Sheet? Materialy Glyatsiol. Issled. Khronika Obsuzhdeniya 24, 173-188. (In Russian with an English summary.) Haggblom, A . 1982: Driftwood in Svalbard as an indicator of sea ice conditions. Geogr. Ann. 64A, 81-94.
    • Hoppe, G. 1970: The Wiirm ice sheets of northern and Arctic Europe. Acta Geographica Lodziensia 24, 105-1 15.
    • Hoppe, G . 1981: Glacial traces on the island of Hopen, Svalhard: A correction. Geogr. Ann. 63A, 67-68.
    • Hoppe. G.. Shytt. A . . Haggblom. A . & Osterholm, H . 1969: ogija XX (4) 1980, 669-680. English summary. p. 680. UDC The glacial histoy of Hopen. Geogr. Ann. 51A, 185-192. 551-35:551.463 (261). Translated (12 pp.). April 1981.
    • Kristoffersen, Y.. Milliman. J. D . & Ellis. J . P. in press: Thomas. R. H . 1979:The dynamics of marine ice sheets. Journal Unconsolidated sediments and shallow structure of the north- of Glaciology 24, 167-177. ern Barents Sea. Polar Research. Vorren. T . 0..Strass, I F. & Lind-Hansen, 0. W . 1978: Late Kvasov. D. D . 1978: The Barents Ice Sheet as a Relay Regulator Quaternary sediments and stratigraphy on the continental of glacial-interglacial alternation. Quaternary Research 9. shelf off Troms and west Finnmark, northern Norway. Qua2 8 a m ternary Research 10, 34C-365.
    • Matisov. G. G. 1980: Geomorphological indications of the Vorren, T . 0. & Elvsborg. A . 1979: Late Weichselian deglaimpact of the Scandinavian, Novaja Zemlja, and the Spits- ciation and paleoenvironment of the shelf and coastal areas bergen ice cover upon the surface of the bottom of the Barents of Troms, north Norway-a review. Boreas 8, 247-253. Sea. (Geomorfologiceskie priznaki vozdejstvija Skacdinav- Williams. P. J. 1967: The nature of freezing soil and its field skogo, Novozemel'skogo, Spicbergenskogo lednikovych pok- behavior. Norwegian Geotechnical Instirure Publ. No. 72: rovov na poverchnost'dna Barenceva morja.) In: Okeanol- 9&119.
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