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Journal Article
Journal: Geology
Published: 01 April 2007
Geology (2007) 35 (4): 359-362.
... Formation, Norwegian margin, illustrates several glacial landforms that are also commonly occurring features on modern high-latitude shelves: (1) streamlined mega-scale lineations produced by fast-flowing ice streams; (2) ploughmarks formed by iceberg keels; and (3) regularly spaced transverse ridges...
FIGURES
Series: Geological Society, London, Special Publications
Published: 01 January 2012
DOI: 10.1144/SP368.8
EISBN: 9781862396166
... Crenulate Sequence. Vertical depth scale is approximate and indicative only. Fig. 5. Subsurface contours showing depth in ms TWT to the EP1 seismic event, compiled from 3D, HR2D and regional 2D seismic survey data. Fig. 6. Iceberg ploughmarks: shaded relief image of reflection amplitudes...
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Series: Geological Society, London, Special Publications
Published: 01 January 2010
DOI: 10.1144/SP344.15
EISBN: 9781862395923
... during its subsequent retreat. Icebergs from Nordenskiöldbreen generated iceberg ploughmarks during the late Holocene. During the Late Weichselian, fjords on Spitsbergen acted as pathways for fast-flowing ice streams draining the Svalbard and Barents Sea ice sheet (e.g. Landvik et al. 1998 , 2005...
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Series: Geological Society, London, Memoirs
Published: 01 January 2004
DOI: 10.1144/GSL.MEM.2004.029.01.06
EISBN: 9781862394049
... displays a wide range of sea bed features including, sediment waves, contourite deposits, polygonal cracking, landslides, debris flows, turbidity current channels, glacial moraines and iceberg ploughmarks. Resolving the spatial aspects of these features greatly assists the interpretation of shallow profile...
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Series: Geological Society, London, Special Publications
Published: 01 January 2001
DOI: 10.1144/GSL.SP.2001.188.01.21
EISBN: 9781862394360
... echo sounder data highlight what are interpreted to be two very distinct north–south-trending ploughmarks, the largest of which is c. 3 km long and up to 8 m deep. A number of smaller ploughmarks are also present. These ploughmarks are interpreted to represent the Quaternary abrasion...
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Image
Figure 1. Seafloor and buried subglacial landforms from modern and late Cen...
in > Geology
Published: 01 April 2007
m (data from three-dimensional [3-D] seismic cube ST9404). B: Streamlined linear bedforms from Traenabanken (66°30′N, 9°E), buried ∼100 m below the modern seafloor. Average height of ridges is 5 m, and average spacing between ridge tops is ∼300 m (data from 3-D seismic cube NLGS-95). C: Ploughmarks
Image
A: Bathymetry of study area in outer Filchner Trough (Weddell Sea Embayment...
in > Geology
Published: 02 October 2017
(lineations A) and on GZW 1a (lineations B) and iceberg ploughmarks on top of GZW 1b and trough flanks. White circles mark sites of studied cores. Inset shows location of study area (red box) within wider Antarctic context, and location of core G7 ( Hillenbrand et al., 2014 ). EAIS—East Antarctic Ice Sheet
Image
Cartoon of environmental conditions during different phases of last glacial...
in > Geology
Published: 02 October 2017
of depression. C: In phase 4, after short retreat, grounding line re-advances in trough center, and its subsequent stillstand causes formation of GZW 1b (red) with lineations B on its top. D: In phase 5, under marine conditions, icebergs float through study area and erode ploughmarks into trough flanks and top
Journal Article
Journal: Geology
Published: 02 October 2017
Geology (2017) 45 (11): 1035-1038.
... (lineations A) and on GZW 1a (lineations B) and iceberg ploughmarks on top of GZW 1b and trough flanks. White circles mark sites of studied cores. Inset shows location of study area (red box) within wider Antarctic context, and location of core G7 ( Hillenbrand et al., 2014 ). EAIS—East Antarctic Ice Sheet...
FIGURES
Series: Geological Society, London, Special Publications
Published: 01 January 2012
DOI: 10.1144/SP368.6
EISBN: 9781862396166
.... Modified from Rise et al. (2005) . Fig. 8. ( a ) Seismic line GMNR-94–107 across Trænabanken. Yellow arrows locate the position of the buried surface shown in ( b ). (b) A buried surface on Trænabanken (66°N, 9°E) 350 m below the modern sea-floor with iceberg ploughmarks (data from 3D seismic...
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Series: Geological Society, London, Special Publications
Published: 01 January 2019
DOI: 10.1144/SP475.13
EISBN: 9781786204141
... MSGLs and channels, ice-marginal grounding-zone wedges (GZWs), and glacimarine iceberg ploughmarks are among the landforms also observed from 3D seismic datasets (e.g. Graham et al. 2007 ; Stewart & Lonergan 2011 ; Montelli et al. 2017 ; Rea et al. 2018 ). The presence of iceberg...
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Series: Geological Society, London, Special Publications
Published: 01 January 2019
DOI: 10.1144/SP475.10
EISBN: 9781786204141
... ploughmarks, whereas much smoother surface are imaged above the relatively thick draping of paraglacial and postglacial sediments in intervening depression. In some cases, the inner portion of a GZW is directly buried by the outer end of the younger GZW. For instance, offshore the Lake Walker valley...
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Journal Article
Journal: Geology
Published: 01 January 2010
Geology (2010) 38 (1): 3-6.
... clasts ( Eidvin et al., 1998 ; Rise et al., 2005 ), is supported by 3-D seismic images of iceberg ploughmarks and streamlined glacial landforms on buried surfaces ( Dowdeswell et al., 2007 ). Its progradation along a line source rather than a point source also suggests sediment delivery along...
FIGURES
Journal Article
Journal: Geophysics
Published: 06 July 2015
Geophysics (2015) 80 (5): D429-D12.
... 0021-9797 Haavik K. E. Landrø M. , 2014 , Ice berg ploughmarks illuminated by shallow gas in the central North Sea : Quaternary Science Reviews , 103 , 34–50 , doi: 10.1016/j.quascirev.2014.09.002 . QSREDU 0277-3791 Hudson J. A. , 1980 , Overall properties of a cracked...
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Journal Article
Published: 01 January 2007
Journal of the Geological Society (2007) 164 (1): 129-141.
... a number of predominantly NE–SW-oriented iceberg ploughmarks. Horizon A is located just over the base of the hydrate stability zone in this area ( Bünz et al . 2003 ). Horizon D is a continuous reflector within the Kai Formation. This horizon is located close to the base of the polygonal fault...
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Series: Geological Society, London, Special Publications
Published: 01 January 2001
DOI: 10.1144/GSL.SP.2001.188.01.22
EISBN: 9781862394360
... survey, upslope of the Magellan mound province, has highlighted examples of buried iceberg ploughmarks ( Games 2001 ). A prominent horizon scoured by icebergs is also clearly visible on site survey data and on the high-resolution reflection data shot by R.V. Belgica in June 1999 on the Connemara Field...
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Journal Article
Published: 01 November 2017
Journal of the Geological Society (2017) 175 (2): 275-290.
... of Fennoscandian glacial isostatic adjustment using modern sea level records . Journal of Geophysical Research , 104 , 2733 – 2747 . Dowdeswell , J.A. & Ottesen , D. 2013 . Buried iceberg ploughmarks in the early Quaternary sediments of the central North Sea: A two-million year record...
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Journal Article
Journal: Geophysics
Published: 09 May 2017
Geophysics (2017) 82 (4): B135-B146.
...://dx.doi.org/10.1190/1.3063887 . Gassmann F. , 1951 , Uber Die elastizitat poroser medien : Vierteljahresschrift der Naturforschenden Gesellschaft , 96 , 1 – 23 . Haavik K. E. Landrø M. , 2014 , Iceberg ploughmarks illuminated by shallow gas in the central North Sea : Quaternary...
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Series: Geological Society, London, Special Publications
Published: 01 January 2012
DOI: 10.1144/SP368.19
EISBN: 9781862396166
FIGURES | View All (11)
Journal Article
Journal: AAPG Bulletin
Published: 01 May 2018
AAPG Bulletin (2018) 102 (5): 855-883.
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