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  • 1
    Book
    Book
    Glacimarine environments : processes and sediments (1990)
    London : Geological Society
    Details Availability
    Keywords: Konferenzschrift 1989 ; Konferenzschrift ; Meer ; Treibeis ; Glaziales Sediment ; Meeressediment ; Meereis ; Sediment ; Sedimenttransport ; Meer ; Treibeis ; Glaziales Sediment ; Meeressediment ; Meereis ; Sediment ; Sedimenttransport ; Glaziales Sediment ; Glaziomarine Sedimentation
    Type of Medium: Book
    Pages: VII, 423 S. , Ill., graph. Darst., Kt.
    Edition: 1. publ.
    ISBN: 0903317540
    Series Statement: Special publication / Geological Society 53
    URL: https://www.gbv.de/dms/tib-ub-hannover/025365533.pdf
    DDC: 551.46083
    RVK:
    RB 10372
    Language: English
    Note: Includes bibliographical references and indexes
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  • 2
    Online Resource
    Online Resource
    Glacier-influenced sedimentation on high-latitude continental margins (2002)
    Details Availability
    Keywords: Drift Congresses ; Glacial landforms Congresses ; Sedimentation and deposition Congresses ; Continental margins Congresses ; Aufsatzsammlung ; Kontinentalrand ; Glaziallandschaft ; Glaziomarine Sedimentation ; Glazialmorphologie ; Glaziales Sediment ; Sedimentation ; Stratigraphie ; Arktis ; Gletscher
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (VI, 378 Seiten)
    ISBN: 1862391203
    Series Statement: Geological Society special publication 203
    URL: http://sp.lyellcollection.org/content/203/1
    URL: https://external.dandelon.com/download/attachments/dandelon/ids/DE0119C9D580F59237424C125738A002C3A83.pdf
    DDC: 551.313
    RVK:
    TF 7300
    Language: English
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  • 3
    Online Resource
    Online Resource
    Atlas of submarine glacial landforms : modern, Quaternary and ancient / edited by J.A. Dowdeswell (University of Cambridge, UK), M. Canals (University of Barcelona, Spain), M. Jakobsson, Stockholm University, Sweden), B.J. Todd (Geological Survey of Canada, Canada), E.K. Dowdesweell (University of Cambridge, UK) and K.A. Hogan (British Antarctic Survey, UK) (2016)
    London : Geological Society
    Details Availability
    Keywords: Aufsatzsammlung ; Nordpolarmeer ; Glaziomarine Sedimentation ; Meeressediment ; Sedimentation ; Meeresboden ; Aufsatzsammlung ; Fjord ; Meeresgeologie ; Meeressediment ; Glaziomarines Sediment ; Erosion ; Antarktis ; Arktis ; Südpolarmeer ; Geomorphogenese ; Glazialerosion ; Glazialmorphologie ; Meeresgeologie ; Paläogeomorphologie
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource
    Series Statement: Geological Society Memoirs 46
    URL: http://mem.lyellcollection.org/content/46/1
    DOI: 10.1144/M46
    DDC: 551.31509168
    RVK:
    RY 20295
    Language: English
    Note: Dateiformat Volltext: PDF, abstracts
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  • 4
    Online Resource
    Online Resource
    Glacimarine environments : processes and sediments ; papers (1990)
    Details Availability
    Keywords: Konferenzschrift ; Meer ; Treibeis ; Glaziales Sediment ; Meeressediment ; Meereis ; Sediment ; Sedimenttransport ; Glaziales Sediment ; Glaziomarine Sedimentation
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (423 Seiten)
    Series Statement: Geological Society special publication 53
    URL: http://sp.lyellcollection.org/content/53/1
    DDC: 551.46083
    RVK:
    RB 10372
    Language: English
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  • 5
    Book
    Book
    Atlas of submarine glacial landforms: modern, Quaternary and ancient (2016)
    London : The Geological Society
    Details Availability
    Keywords: Glacial landforms ; Submarine topography ; Meeresboden ; Glaziallandschaft ; Glaziales Sediment
    Description / Table of Contents: "The Atlas presents over 180 contributions describing, illustrating and discussing the full variability of landforms found on the high-latitude glacier-influenced seafloor, from fjords and continental shelves to the continental slope, rise and deep-sea basins beyond."--
    Type of Medium: Book
    Pages: xix, 618 Seiten , Karten, Diagramme, Illustrationen , 32 cm
    ISBN: 9781786202680
    Series Statement: Geological Society memoir No. 46
    URL: http://mem.lyellcollection.org/content/46/1.toc
    DDC: 551.31509168
    RVK:
    RY 20295
    Language: English
    Note: Cumulated bibliography pages [575] - 611 , Geographical index pages [612] - 614 , Introduction -- Acoustic methods -- Fjords: landforms -- Fjords: landform assemblages -- Continental shelf: landforms -- Continental shelf: landform assemblages -- Continental slope: landforms -- Fjord-shelf-slope: landsystems -- Conclusion -- Glossary, cumulated bibliography and index
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  • 6
    Electronic Resource
    Electronic Resource
    A surge of Perseibreen, Svalbard, examined using aerial photography and ASTER high resolution satellite imagery (2003)
    Oxford, UK : Blackwell Publishing Ltd
    Polar research 22 (2003), S. 0 
    Details
    ISSN: 1751-8369
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geography , Geosciences
    Notes: The identification of surge activity is important in assessing the duration of the active and quiescent phases of the surge cycle of Svalbard glaciers. Satellite and aerial photographic images are used to identify and describe the form and flow of Perseibreen, a valley glacier of 59 km2 on the east coast of Spitsbergen. Heavy surface crevassing and a steep ice front, indicative of surge activity, were first observed on Perseibreen in April 2002. Examination of high resolution (15 m) Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) satellite imagery confirmed this surge activity. Perseibreen retreated by almost 750 m between 1961 and 1990. Between 1990 and the summer of 2000, Perseibreen switched from retreat and its front began to advance. Rapid advance was underway during the period June 2000 to May 2001, with terminus advance at over 400 m yr−1. Between May and August 2001 the rate increased to over 750 m yr−1. The observed crevasse orientation indicates that ice was in longitudinal tension, suggesting the down-glacier transfer of mass. Ice surface velocities, derived from image correlation between ASTER images, were 2-2.5 m d−1 between May and August 2001. The glacier was flowing at a relatively uniform speed with sharp velocity gradients located close to its lateral margins, a velocity structure typical of ice masses in the active phase of the surge cycle. The stress regime is extensional throughout and the surge appears to be initiated low on the glacier. This is similar to the active-phase dynamics of other Svalbard tidewater glaciers. Perseibreen has probably been inactive since at least 1870, a period of about 130 years to the present surge which defines a minimum length for the quiescent phase.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1751-8369.2003.tb00118.x
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  • 7
    Electronic Resource
    Electronic Resource
    Mapping seabird nesting habitats in Franz Josef Land, Russian High Arctic, using digital Landsat Thematic Mapper imagery (1998)
    Oxford, UK : Blackwell Publishing Ltd
    Polar research 17 (1998), S. 0 
    Details
    ISSN: 1751-8369
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geography , Geosciences
    Notes: Supervised classification of digital Landsat satellite images was used to locate seabird nesting habitats in the Russian High Arctic archipelago of Franz Josef Land, a region where the avifauna is poorly known and ecologically vulnerable. Major seabird nesting colonies are readily identifiable in Landsat Thematic Mapper (TM) imagery of the region due primarily to the distinctive spectral signature of vegetation on ornithogenically altered soils below bird cliffs. Supervised image classification was used to pinpoint areas displaying spectral characteristics typical of documented seabird nesting habitats. A total of 101 seabird nesting colony locations identified in Russian and Western literature from 1898 to 1996 was used as training sites to develop spectral signatures from a summer TM image mosaic for use in a supervised maximum likelihood classification. The classified image was thresholded and compared to a map of documented nesting locations. Of the 101 field-documented nesting sites, 96 were clearly identified in the classified image. An inventory was produced of all undocumented seabird habitats suggested by the classification, totalling over 300 sites. The methodology used may be applicable to other arctic regions and is intended as a first step when planning ecological protection zones in remote and inaccessible arctic regions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1751-8369.1998.tb00256.x
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  • 8
    Electronic Resource
    Electronic Resource
    Remote sensing of ice cap outlet glacier fluctuations on Nordaustlandet, Svalbard (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Polar research 4 (1986), S. 0 
    Details
    ISSN: 1751-8369
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geography , Geosciences
    Notes: Landsat multispectral scanner images and 1:50, 000 scale aerial photographs are used to measure marginal fluctuations in 22 outlet glaciers of the Nordaustlandet ice caps, Svalbard, for all or parts of the period 1969 to 1981. Little was previously known about the behaviour of these glacier termini. Digital analysis of Landsat computer compatible tapes yielded measurement errors of less than ±150m, whereas data extracted from aerial photographs had an accuracy of ±25 m. Of the 22 glacier termini examined using aerial photographs, 15 were retreating, four were static and three were advancing. Retreat was usually in the order of hundreds of metres during the period of observation. For any outlet glacier, retreat was probably a result of either (1) glacier response to climatic wanning since the early part of the 20th century, or (2) stagnation and thinning during the quiescent period between surges. Short term iceberg calving events may also be responsible for retreat in a few cases. All observed outlet glaciers of Austfonna were static or retreating between 1969 and 1981, but analysis of Landsat imagery and aerial photographs showed that five outlet glaciers from Vestfonna and one from Vegafonna were advancing for all or part of that period. Bodleybreen advanced by a mean of 440 and a maximum of 580m a−1 between 1976 and 1981. Bodleybreen, Søre Rijpbreen, and Palanderbreen are identified as surging, based on increases or changes in the pattern of surface crevassing. The ice streams Aldousbreen, Frazerbreen, and Idunbreen also advanced between 1976 and 1981, but surface crevasse patterns remained largely unaltered and surging is not inferred.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1751-8369.1986.tb00515.x
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  • 9
    Electronic Resource
    Electronic Resource
    Quartz sand grain shape and other criteria used to distinguish glacial and non-glacial events in a marine core from Frobisher Bay, Baffin Island, N.W.T., Canada (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Sedimentology 32 (1985), S. 0 
    Details
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Analyses of quartz sand grain shape, sediment influx rates and foraminifera define glacial and non-glacial episodes in a 9.69 m core from Frobisher Bay, Arctic Canada. Five radiocarbon dates on organic matter provide a preliminary core chronology, with a basal date of 11,910 yr BP. Quartz sand grain morphology is measured for samples at seven core levels using: (1) Fourier shape analysis; (2) percentage of grain surface conchoidally fractured. Samples at 2.0 and 7.5 m are most fractured and have Fourier roughness coefficients similar to particles sampled directly from glacier ice. These two samples probably represent glacial events in the core. Major intervals of non-carbonate sand influx occur at 9.0–4.5 m and 3.5–1.5 m, separated by several thousand years of slower sedimentation. Detrital carbonate influx rates are relatively high prior to 4.3 m, then decline rapidly indicating a shift in sediment provenance from limestones flooring Frobisher Bay to rafting from far-travelled icebergs. Bio- and lithostratigraphic analysis allows definition of five core units: (1) an environment similar to today below 8.5 m; (2) glacial conditions from 8.5–6.8 m, associated with ice proximal to the core site; (3) ameliorating conditions from 6.8 to 3.2 m; (4) cooler conditions from 3.2 to 0.5 m, probably related to increased iceberg flux rather than neoglacial advances of nearby ice caps; (5) an environment similar to today from 0.5 m. Sand grains sampled at 7.5 and 2.0 m, whose shapes indicate they are derived from glacier ice, lie within the cooler or glacial units defined from foraminiferal analysis. This indicates that quantitative measurement of particle surface morphology can provide useful environmental information in studies of marine cores.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3091.1985.tb00496.x
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  • 10
    Electronic Resource
    Electronic Resource
    The origin of massive diamicton facies by iceberg rafting and scouring, Scoresby Sund, East Greenland (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Sedimentology 41 (1994), S. 0 
    Details
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Almost 90% of 39 m of core material recovered from Scoresby Sund and the adjacent East Greenland shelf is massive diamicton, interpreted to be formed predominantly by the release of iceberg rafted debris and reworking by iceberg scouring. There is also likely to be a contribution from suspension settling of fines derived from glaciofluvial sources. Model calculations suggest that the 14C derived Holocene sedimentation rate of 0.1-0.3 m 1000 yr−1 in Scoresby Sund can be accounted for mainly by iceberg rafting of debris. A further 4% of core material is of gravel or coarse sand lenses, interpreted to reflect iceberg dumping of debris. Intensive iceberg scouring, which reworks sea floor sediments, is observed on acoustic records from over 30 000 km2 of the Scoresby Sund fiord system and the adjacent East Greenland shelf (69-72°N and 75°N). The rate of iceberg production from Greenland Ice Sheet outlet glaciers, and iceberg drift tracks on the shelf, suggests that iceberg rafting and scouring may be important over a significant proportion of the 500 000 km2 area above the shelf break. The relatively extensive modern occurrence of massive diamicton, formed by iceberg rafting and scouring, together with suspension settling of fines, suggests that it may also be a significant facies in the glacier-influenced geological record. The recognition in the geological record of the massive diamicton facies described above may also indicate the former presence of fast flowing ice sheet outlet glaciers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3091.1994.tb01390.x
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