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Physical properties of the WAIS Divide ice core

  • Joan J. Fitzpatrick (a1), Donald E. Voigt (a2), John M. Fegyveresi (a2), Nathan T. Stevens (a2), Matthew K. Spencer (a3), Jihong Cole-Dai (a4), Richard B. Alley (a2), Gabriella E. Jardine (a5), Eric D. Cravens (a6), Lawrence A. Wilen (a7), T.J. Fudge (a8) and Joseph R. Mcconnell (a9)...


The WAIS (West Antarctic Ice Sheet) Divide deep ice core was recently completed to a total depth of 3405 m, ending 50 m above the bed. Investigation of the visual stratigraphy and grain characteristics indicates that the ice column at the drilling location is undisturbed by any large-scale overturning or discontinuity. The climate record developed from this core is therefore likely to be continuous and robust. Measured grain-growth rates, recrystallization characteristics, and grain-size response at climate transitions fit within current understanding. Significant impurity control on grain size is indicated from correlation analysis between impurity loading and grain size. Bubble-number densities and bubble sizes and shapes are presented through the full extent of the bubbly ice. Where bubble elongation is observed, the direction of elongation is preferentially parallel to the trace of the basal (0001) plane. Preferred crystallographic orientation of grains is present in the shallowest samples measured, and increases with depth, progressing to a vertical-girdle pattern that tightens to a vertical single-maximum fabric. This single-maximum fabric switches into multiple maxima as the grain size increases rapidly in the deepest, warmest ice. A strong dependence of the fabric on the impurity-mediated grain size is apparent in the deepest samples.

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Alley, RB (1988) Fabrics in polar ice sheets: development and prediction. Science, 240(4851), 493495 (doi: 10.1126/science.240.4851.493)
Alley, RB (1992) Flow-law hypotheses for ice-sheet modeling. J. Glaciol., 38(129), 245256
Alley, RB and Fitzpatrick, JJ (1999) Conditions for bubble elongation in cold ice-sheet ice. J. Glaciol., 45(149), 147153
Alley, RB and Woods, GA (1996) Impurity influence on normal grain growth in the GISP2 ice core, Greenland. J. Glaciol., 42(141), 255260
Alley, RB, Perepezko, JH and Bentley, CR (1986a) Grain growth in polar ice: II. Application. J. Glaciol., 32(112), 425433
Alley, RB, Perepezko, JH and Bentley, CR (1986b) Grain growth in polar ice: I. Theory. J. Glaciol., 32(112), 415424
Alley, RB, Gow, AJ and Meese, DA (1995) Mapping c –axis fabrics to study physical processes in ice. J. Glaciol., 41(137), 197203
Alley, RB and 11 others (1997) Visual-stratigraphic dating of the GISP2 ice core: basis, reproducibility, and application. J. Geophys. Res., 102(C12), 26 367–26 382 (doi: 10.1029/96JC03837)
Ashby, MF, Harper, J and Lewis, J (1969) The interaction of crystal boundaries with second-phase particles. Trans. Metall. Soc. AIME, 245(3), 413420
Azuma, N and 6 others (2000) Crystallographic analysis of the Dome Fuji ice core. In Hondoh, T ed. Physics of ice core records, Hokkaido University Press, Sapporo, 4561
Bansal, PP and Ardell, AJ (1972) Average nearest-neighbor distances between uniformly distributed finite particles. Metallography, 5(2), 97111 (doi: 10.1016/0026–0800(72)90048–1)
Battle, MO and 8 others (2011) Controls on the movement and composition of firn air at the West Antarctic Ice Sheet Divide. Atmos. Chem. Phys., 11(21), 11 00711 021 (doi: 10.5194/acp-11–11007–2011)
Bender, ML, Burgess, E, Alley, RB, Barnett, B and Clow, GD (2011) On the nature of the dirty ice at the bottom of the GISP2 ice core. Earth Planet. Sci. Lett., 299(3–4), 466473 (doi: 10.1016/j.epsl. 2010.09.033)
Binder, T, Weikusat, I, Freitag, J, Garbe, CS, Wagenbach, D and Kipfstuhl, S (2013) Microstructure through an ice sheet. In Barnett, M ed. Recrystallization and grain growth V. (Materials Science Forum 753) Trans Tech Publications, Pfaffikon, 481484
Blenkinsop, TG (2000) Deformation microstructures and mechanisms in minerals and rocks. Kluwer Academic, Dordrecht Bowen HJM (1979) Environmental chemistry of the elements. Academic Press, London
Budd, WF and Jacka, TH (1989) A review of ice rheology for ice sheet modelling. Cold Reg. Sci. Technol., 16(2), 107144 (doi: 10.1016/0165–232X(89)90014–1)
Cahn, JW (1962) The impurity-drag effect in grain boundary motion. Acta Metall., 10(9), 789798 (doi: 10.1016/0001–6160(62) 90092–5)
Cleveland, WS (1979) Robust locally weighted regression and smoothing scatterplots. J. Am. Stat. Assoc., 74(368), 829836 (doi: 10.1080/01621459.1979.10481038)
Cleveland, WS and Devlin, SJ (1988) Locally weighted regression: an approach to regression analysis by local fitting. J. Am. Stat. Assoc., 83(403), 596610 (doi: 10.1080/01621459.1988.10478639)
Coble, RL (1970) Diffusion models for hot pressing with surface energy and pressure effects as driving forces. J. Appl. Phys., 41(12), 47984807 (doi: 10.1063/1.1658543)
Conway, H and Rasmussen, LA (2009) Recent thinning and migration of the Western Divide, central West Antarctica. Geophys. Res. Lett., 36(12), L12502 (doi: 10.1029/2009GL038072)
Cuffey, KM and Paterson, WSB (2010) The physics of glaciers, 4th edn. Butterworth-Heinemann, Oxford
Cuffey, KM, Thorsteinsson, T and Waddington, ED (2000) A renewed argument for crystal size control of ice sheet strain rates. J. Geophys. Res., 105(B12), 27 889–27 894 (doi: 10.1029/2000JB900270)
Dahl-Jensen, D, Gundestrup, N, Gogineni, SP and Miller, H (2003) Basal melt at NorthGRIP modeled from borehole, ice-core and radio-echo sounder observations. Ann. Glaciol., 37, 207212 (doi: 10.3189/172756403781815492)
Das, SB and Alley, RB (2005) Characterization and formation of melt layers in polar snow: observations and experiments from West Antarctica. J. Glaciol., 51(173): 307313 (doi: 10.3189/172756505781829395)
DiPrinzio, CL, Wilen, LA, Alley, RB, Fitzpatrick, JJ, Spencer, MK and Gow, AJ (2005) Fabric and texture at Siple Dome, Antarctica. J. Glaciol., 51(173), 281290 (doi: 10.3189/172756505781829359)
Durand, G (2004) Microstructure, recristallisation et déformation des glaces polaires de la carotte EPICA, Dôme Concordia, Antarctique. (PhD thesis, Université Joseph Fourier)
Durand, G and 10 others (2006) Effect of impurities on grain growth in cold ice sheets. J. Geophys. Res., 111(F1), F01015 (doi: 10.1029/2005JF000320)
Duval, P and Lorius, C (1980) Crystal size and climatic record down to the last ice age from Antarctic ice. Earth Planet. Sci. Lett., 48(1), 5964 (doi: 10.1016/0012–821X(80)90170–3)
Faria, SH, Freitag, J and Kipfstuhl, S (2010) Polar ice structure and the integrity of ice-core paleoclimate records. Quat. Sci. Rev., 29(1–2), 338351 (doi: 10.1016/j.quascirev.2009.10.016)
Fegyveresi, JM and 7 others (2011) Late-Holocene climate evolution at the WAIS Divide site, West Antarctica: bubble number-density estimates. J. Glaciol., 57(204), 629638 (doi: 10.3189/002214311797409677)
Ferrick, MG and Claffey, KJ (1993) Vector analysis of ice-fabric data. J. Glaciol., 39(132), 292302
Fischer, H, Siggaard-Andersen, M-L, Ruth, U, Röthlisberger, R and Wolff, E (2007) Glacial/interglacial changes in mineral dust and sea-salt records in polar ice cores: sources, transport, and deposition. Rev. Geophys., 45(RG10), RG1002 (doi: 10.1029/2005RG000192)
Fitzpatrick, JJ (2013) Digital-image processing and image analysis of glacier ice. In Automated data processing and computations. (USGS Techniques and Methods 7) US Geological Survey, Reston, VA
Freitag, J, Kipfstuhl, S, Laepple, T and Wilhelms, F (2013) Impurity-controlled densification: a new model for stratified polar firn. J. Glaciol., 59(218), 11631169 (doi: 10.3189/2013JoG13J042)
Gow, AJ (1969) On the rates of growth of grains and crystals in South Polar firn. J. Glaciol., 8(53), 241252
Gow, AJ (1970) Deep core studies of the crystal structure and fabrics of Antarctic glacier ice. CRREL Res. Rep. 282
Gow, AJ and Meese, D (2007) Physical properties, crystalline textures and c –axis fabrics of the Siple Dome (Antarctica) ice core. J. Glaciol., 53(183), 573584 (doi: 10.3189/002214307784409252)
Gow, AJ and Williamson, T (1976) Rheological implications of the internal structure and crystal fabrics of the West Antarctic ice sheet as revealed by deep core drilling at Byrd Station. CRREL Rep. 76, 16651677
Gow, AJ, Epstein, S and Sheehy, W (1979) On the origin of stratified debris in ice cores from the bottom of the Antarctic ice sheet. J. Glaciol., 23(89), 185192
Gow, AJ and 6 others (1997) Physical and structural properties of the Greenland Ice Sheet Project 2 ice core: a review. J. Geophys. Res., 102(C12), 26 559–26 575 (doi: 10.1029/97JC00165)
Hammer, CU (1983) Initial direct current in the buildup of space charges and the acidity of ice cores. J. Phys. Chem., 87(21), 40994103 (doi: 10.1021/j100244a022)
Hammer, CU, Clausen, HB, Dansgaard, W, Neftel, A, Kristinsdóttir, P and Johnson, E (1985) Continuous impurity analysis along the Dye 3 deep core. In Greenland ice core: geophysics, geochemistry, and the environment. (Geophysical Monograph 33) American Geophysical Union, Washington, DC, 9094
Hansen, DP and Wilen, LA (2002) Performance and applications of an automated c –axis ice-fabric analyzer. J. Glaciol., 48(160), 159170 (doi: 10.3189/172756502781831566)
Herron, SL, Langway, CC Jr and Brugger, KA (1985) Ultrasonic velocities and crystalline anisotropy in the ice core from Dye 3, Greenland. In Greenland ice core: geophysics, geochemistry, and the environment. (Geophysical Monograph 33) American Geophysical Union, Washington, DC, 2331
Hsueh, CH and Evans, AG (1983) Microstructure evolution during sintering: the role of evaporation/condensation. Acta Metall., 31(1), 189198 (doi: 10.1016/0001–6160(83)90078–0)
Jouzel, J and 31 others (2007) Orbital and millennial Antarctic climate variability over the past 800,000 years. Science, 317(5839), 793796 (doi: 10.1126/science.1141038)
Kennedy, JH, Pettit, EC and Di Prinzio, CL (2013) The evolution of crystal fabric in ice sheets and its link to climate history. J. Glaciol., 59(214), 357373 (doi: 10.3189/2013JoG12J159)
Kipfstuhl, S and 8 others (2009) Evidence of dynamic recrystallization in polar firn. J. Geophys. Res., 114(B5), B05204 (doi: 10.1029/2008JB005583)
Kittler, J, Illingworth, J and Föglein, J (1985) Threshold selection based on a simple image statistic. Comput. Vision Graph. Image Process., 30(2), 125147 (doi: 10.1016/0734–189X(85)90093–3)
Kruhl, JH (1996) Prism- and basal-plane parallel subgrain boundaries in quartz: a microstructural geothermobarometer. J. Metamorph. Geol., 14(5), 581589 (doi: 10.1046/j.1525–1314.1996.00413.x)
Langway, CC Jr (1967) Stratigraphic analysis of a deep ice core from Greenland. CRREL Res. Rep. 77
Langway, CC Jr, Shoji, H and Azuma, N (1988) Crystal size and orientation patterns in the Wisconsin-age ice from Dye 3, Greenland. Ann. Glaciol., 10, 109115
Lipenkov, VYa, Barkov, NI, Duval, P and Pimienta, P (1989) Crystalline texture of the 2083 m ice core at Vostok Station, Antarctica. J. Glaciol., 35(121), 392398
Lücke, K and Detert, K (1957) A quantitative theory of grain-boundary motion and recrystallization in metals in the presence of impurities. Acta Metall., 5(11), 628637 (doi: 10.1016/0001–6160(57)90109–8)
Mayewski, PA and 13 others (1994) Changes in atmospheric circulation and ocean ice cover over the North Atlantic during the last 41000 years. Science, 263(5154), 17471751 (doi: 10.1126/science.263.5154.1747)
McGwire, KC, McConnell, JR, Alley, RB, Banta, JR, Hargreaves, GM and Taylor, KC (2008) Dating annual layers of a shallow Antarctic ice core with an optical scanner. J. Glaciol., 54(188), 831838 (doi: 10.3189/002214308787780021)
Moore, JC (1993) High-resolution dielectric profiling of ice cores. J. Glaciol., 39(132), 245248
Morse, DL, Blankenship, DD, Waddington, ED and Neumann, TA (2002) A site for deep ice coring in West Antarctica: results from aerogeophysical surveys and thermo-kinematic modeling. Ann. Glaciol., 35, 3644 (doi: 10.3189/172756402781816636)
Okudaira, T, Takeshita, T and Toriumi, M (1998) Prism- and basal-plane parallel subgrain boundaries in quartz: a microstructural geothermobarometer. J. Metamorph. Geol., 16(1), 141146 (doi: 10.1111/j.1525–1314.1998.00063.x)
Otsu, N (1979) A threshold selection method from gray-level histograms. IEEE Trans. Syst. Manage. Cybern., 9(1), 6266 (doi: 10.1109/TSMC.1979.4310076)
Parker, JR (1996) Algorithms for image processing and computer vision. Wiley, New York
Passchier, CW and Trouw, RAJ (2005) Microtectonics, 2nd edn. Springer, Berlin
Pauer, F, Kipfstuhl, J, Kuhs, WF and Shoji, H (1999) Air clathrate crystals from the GRIP deep ice core: a number-, size- and shape-distribution study. J. Glaciol., 45(149), 2230
Pun, T (1980) A new method for grey-level picture thresholding using the entropy of the histogram. Signal Process., 2(3), 223237 (doi: 10.1016/0165–1684(80)90020–1)
Russ, JC (2011) The image processing handbook, 6th edn. CRC Press, Boca Raton, FL
Russell-Head, DS and Wilson, CJL (2001) Automated fabric analyser system for quartz and ice. Geol. Soc. Austral. Abstr., 64, 159
Shoji, H and Langway, CC Jr (1982) Air hydrate inclusions in fresh ice core. Nature, 298(5874), 548550 (doi: 10.1038/298548a0)
Souney, JM and 15 others (2014) Core handling and processing for the WAIS Divide ice-core project. Ann. Glaciol., 55(68), 1526 (doi: 10.3189/2014AoG68A008)
Spaulding, NE, Meese, DA and Baker, I (2011) Advanced micro-structural characterization of four East Antarctic firn/ice cores. J. Glaciol., 57(205), 796810 (doi: 10.3189/002214311798043807)
Spencer, MK, Alley, RB and Fitzpatrick, JJ (2006) Developing a bubble number-density paleoclimatic indicator for glacier ice. J. Glaciol., 52(178), 358364 (doi: 10.3189/172756506781828638)
Svensson, A and 7 others (2005) Visual stratigraphy of the North Greenland Ice Core Project (NorthGRIP) ice core during the last glacial period. J. Geophys. Res., 110(D2), D02108 (doi: 10.1029/2004JD005134)
Taylor, KC and Alley, RB (2004) Two-dimensional electrical statigraphy of the Siple Dome (Antarctica) ice core. J. Glaciol., 50(169), 231235 (doi: 10.3189/172756504781830033)
Taylor, KC and 9 others (1993) Electrical conductivity measurements from the GISP2 and GRIP Greenland ice cores. Nature, 366(6455), 549552 (doi: 10.1038/366549a0)
Taylor, KC and 13 others (2004) Dating the Siple Dome (Antarctica) ice core by manual and computer interpretation of annual layering. J. Glaciol., 50(170), 453461 (doi: 10.3189/172756504781829864)
Thorsteinsson, T, Kipfstuhl, J and Miller, H (1997) Textures and fabrics in the GRIP ice core. J. Geophys. Res., 102(C12), 26 583–26 599 (doi: 10.1029/97JC00161)
Tison, J-L, Thorsteinsson, T, Lorrain, RD and Kipfstuhl, J (1994) Origin and development of textures and fabrics in basal ice at Summit, Central Greenland. Earth Planet. Sci. Lett., 125(3–4), 421437 (doi: 10.1016/0012–821X(94)90230–5)
Uchida, T, Hondoh, T, Mae, S, Lipenkov, VY and Duval, P (1994) Airhydrate crystals in deep ice-core samples from Vostok Station, Antarctica. J. Glaciol., 40(134), 7986
Underwood, EE (1970) Quantitative stereology. Addison-Wesley, Reading, MA
Van der Veen, CJ and Whillans, IM (1994) Development of fabric in ice. Cold Reg. Sci. Technol., 22(2), 171195 (doi: 10.1016/0165–232X(94)90027–2)
Waddington, ED, Bolzan, JF and Alley, RB (2001) Potential for stratigraphic folding near ice-sheet centers. J. Glaciol., 47(159), 639648 (doi: 10.3189/172756501781831756)
WAIS Divide Project Members (2013) Onset of deglacial warming in West Antarctica driven by local orbital forcing. Nature, 500(7463), 440444 (doi: 10.1038/nature12376)
Weertman, J (1968) Bubble coalescence in ice as a tool for the study of its deformation. J. Glaciol., 7(50), 155159
Weikusat, I, Kipfstuhl, S, Faria, SH, Azuma, N and Miyamoto, A (2009) Subgrain boundaries and related microstructural features in EDML (Antarctica) deep ice core. J. Glaciol., 55(191), 461472 (doi: 10.3189/002214309788816614)
Weikusat, I, Miyamoto, A, Faria, SH, Kipfstuhl, S, Azuma, N and Hondoh, T (2011) Subgrain boundaries in Antarctic ice quantified by X-ray Laue diffraction. J. Glaciol., 57(201), 111120 (doi: 10.3189/002214311795306628)
Weiss, J, Vidot, J, Gray, M, Arnaud, L, Duval, P and Petit, JR (2002) Dome Concordia ice microstructure: impurities effect on grain growth. Ann. Glaciol., 35, 552558 (doi: 10.3189/172756402781816573)
Wilen, LA (2000) A new technique for ice-fabric analysis. J. Glaciol., 46(152), 129139 (doi: 10.3189/172756500781833205)
Wilen, LA, DiPrinzio, CL, Alley, RB and Azuma, N (2003) Development, principles, and applications of automated ice fabric analyzers. Microsc. Res. Tech., 62(1), 218 (doi: 10.1002/jemt.10380)
Wolff, EW and 29 others (2010) Changes in environment over the last 800,000 years from chemical analysis of the EPICA Dome C ice core. Quat. Sci. Rev., 29(1–2), 285295 (doi: 10.1016/j. quascirev.2009.06.013)
Woodcock, NH (1977) Specification of fabric shapes using an eigenvalue method. Geol. Soc. Am. Bull., 88(9), 12311236 (doi: 10.1130/0016–7606(1977)88<1231:SOFSUA>2.0.CO;2)
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