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Volumn 315, Issue 5820, 2007, Pages 1835-1838

Discovery of till deposition at the grounding line of Whillans Ice Stream

Author keywords

[No Author keywords available]

Indexed keywords

ICE;

EID: 34147217225     PISSN: 00368075     EISSN: 10959203     Source Type: Journal    
DOI: 10.1126/science.1138393     Document Type: Article
Times cited : (142)

References (30)
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    • R. B. Alley, S. Anandakrishnan, T. K. Dupont, B. R. Parizek, D. Pollard, Science 315, 1838 (2007); published online 1 March 2007 (10.1126/science.1138396).
    • R. B. Alley, S. Anandakrishnan, T. K. Dupont, B. R. Parizek, D. Pollard, Science 315, 1838 (2007); published online 1 March 2007 (10.1126/science.1138396).
  • 5
    • 34147194512 scopus 로고    scopus 로고
    • A. Gades, thesis, University of Washington (1998).
    • A. Gades, thesis, University of Washington (1998).
  • 8
    • 34147205794 scopus 로고    scopus 로고
    • The alternative explanation for termination of the wedge (i.e, it is cut by bedrock raised along a near-vertical fault plane striking across our line) is geologically unlikely considering the dominant trend of structures in the region, which are controlled by north-south extension
    • The alternative explanation for termination of the wedge (i.e., it is cut by bedrock raised along a near-vertical fault plane striking across our line) is geologically unlikely considering the dominant trend of structures in the region, which are controlled by north-south extension.
  • 11
    • 34147203164 scopus 로고    scopus 로고
    • No transverse radar lines crossed this feature. However, our longitudinal line was placed with no a priori knowledge of the feature, making it unlikely that this is a narrow feature that we found by chance
    • No transverse radar lines crossed this feature. However, our longitudinal line was placed with no a priori knowledge of the feature, making it unlikely that this is a narrow feature that we found by chance.
  • 15
    • 0000429684 scopus 로고    scopus 로고
    • R. B. Alley, R. A. Bindschadler, Eds, American Geophysical Union, Washington, DC
    • B. Kamb, The West Antarctic Ice Sheet: Behavior and Environment, R. B. Alley, R. A. Bindschadler, Eds. (American Geophysical Union, Washington, DC, 2001), pp. 157-200.
    • (2001) The West Antarctic Ice Sheet: Behavior and Environment , pp. 157-200
    • Kamb, B.1
  • 16
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    • The phase of the reflection from the base φ of the till is diagnostic of porosity, with reflection phase angles ranging from 70° to 120° for porosity from 45 to 15%, respectively. However, our instrument was not phase sensitive; future work with a phase-sensitive radar or with seismic experiments would determine this property.
    • The phase of the reflection from the base φ of the till is diagnostic of porosity, with reflection phase angles ranging from 70° to 120° for porosity from 45 to 15%, respectively. However, our instrument was not phase sensitive; future work with a phase-sensitive radar or with seismic experiments would determine this property.
  • 23
    • 34147195206 scopus 로고    scopus 로고
    • Similar or somewhat larger sediment fluxes are indicated by the geometry and likely time for deposition of the grounding-zone wedges described by Mosola and Anderson 19, which is consistent with the ice sheet having expanded over easily eroded, poorly consolidated sediments of the Ross Sea
    • Similar or somewhat larger sediment fluxes are indicated by the geometry and likely time for deposition of the grounding-zone wedges described by Mosola and Anderson (19), which is consistent with the ice sheet having expanded over easily eroded, poorly consolidated sediments of the Ross Sea.
  • 28
    • 0034493831 scopus 로고    scopus 로고
    • A. J. Maltman, B. Hubbard, M. J. Hambrey, Eds, Special Publication 176, Geological Society of London
    • R. B. Alley, Deformation of Glaciol Materials, A. J. Maltman, B. Hubbard, M. J. Hambrey, Eds. (Special Publication 176, Geological Society of London, 2000), pp. 171-179.
    • (2000) Deformation of Glaciol Materials , pp. 171-179
    • Alley, R.B.1
  • 30
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    • We thank D. Voigt, I. Joughin, P. Winberry, L. Peters, B. Bindschadler, and P. Burkett for their help; and University Navstar Consortium UNAVCO, Raytheon Polar Services, and Kenn Borek Air for logistical support. Partial support was provided by NSF through grant numbers 0229629, 0226535, 0424589, 0440447, 0440899, 0447235, 0531211, and 0539578, and by the Gary Comer Science and Education Foundation
    • We thank D. Voigt, I. Joughin, P. Winberry, L. Peters, B. Bindschadler, and P. Burkett for their help; and University Navstar Consortium (UNAVCO), Raytheon Polar Services, and Kenn Borek Air for logistical support. Partial support was provided by NSF through grant numbers 0229629, 0226535, 0424589, 0440447, 0440899, 0447235, 0531211, and 0539578, and by the Gary Comer Science and Education Foundation.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.