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Subglacially precipitated carbonates record geochemical interactions and pollen preservation at the base of the Laurentide Ice Sheet on central Baffin Island, eastern Canadian Arctic

Published online by Cambridge University Press:  20 January 2017

Kurt A. Refsnider ,
Gifford H. Miller ,
Marilyn L. Fogel ,
Bianca Fréchette ,
Roxane Bowden ,
John T. Andrews  and
G. Lang Farmer
Kurt A. Refsnider
Affiliation:
Prescott College, Prescott, AZ 86301, USA INSTAAR, University of Colorado at Boulder, Boulder, CO 80309, USA
Gifford H. Miller
Affiliation:
Department of Geological Sciences, University of Colorado at Boulder, Boulder, CO 80309, USA INSTAAR, University of Colorado at Boulder, Boulder, CO 80309, USA
Marilyn L. Fogel
Affiliation:
School of Natural Sciences, University of California, Merced, 95343, USA
Bianca Fréchette
Affiliation:
Centre GEOTOP, Université du Québec à Montréal, Montréal, Québec H3C 3P8, Canada
Roxane Bowden
Affiliation:
Geophysical Laboratory, Carnegie Institution of Washington, Washington D.C. 20015, USA
John T. Andrews
Affiliation:
Department of Geological Sciences, University of Colorado at Boulder, Boulder, CO 80309, USA INSTAAR, University of Colorado at Boulder, Boulder, CO 80309, USA
G. Lang Farmer
Affiliation:
Department of Geological Sciences, University of Colorado at Boulder, Boulder, CO 80309, USA CIRES, University of Colorado at Boulder, Boulder, CO 80309, USA
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Abstract

The mineralogy and isotopic compositions of subglacially precipitated carbonate crusts (SPCCs) provide information on conditions and processes beneath former glaciers and ice sheets. Here we describe SPCCs formed on gneissic bedrock at the bed of the Laurentide Ice Sheet (LIS) during the last glacial maximum on central Baffin Island. Geochemical data indicate that the Ca in the crusts was likely derived from the subglacial chemical weathering Ca-bearing minerals in the local bedrock. C and Sr isotopic analyses reveal that the C in the calcite was derived predominantly from older plant debris. The δ18O values of the SPCCs suggest that these crusts formed in isotopic equilibrium with basal ice LIS preserved in the Barnes Ice Cap (BIC). Columnar crystal fabric and the predominance of sparite over micrite in the SPCCs are indicative of carbonate precipitation under open-system conditions. However, the mean δ18O value of the calcite crusts is ~ 10‰ higher than those of primary LIS ice preserved in the BIC, demonstrating that SPCCs record the isotopic composition of only basal ice. Palynomorph assemblages preserved within the calcite and basal BIC ice include species last endemic to the Arctic in the early Tertiary. The source of these palynomorphs remains enigmatic.

Keywords

Laurentide Ice SheetStable isotopesPalynologyCarbonate geochemistryBaffin Island
Type
Research Article
Information
Quaternary Research , Volume 81 , Issue 1 , January 2014 , pp. 94 - 105
Copyright
University of Washington

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References

Aharon, P. Oxygen, carbon, and U-series isotopes of aragonites from Vestfold Hills, Antarctica: clues to geochemical processes in subglacial environments. Geochimica et Cosmochimica Acta 52, (1988). 2321–2331.CrossRefGoogle Scholar
Andrews, J.T., and Webber, P.J. A lichenometrical study of the northwestern margin of the Barnes Ice Cap: a geomorphological technique. Geographical Bulletin 22, (1964). 80–104.Google Scholar
Andrews, J.T., Guennel, G.K., Wray, J.L., and Ives, J.D. An early Tertiary outcrop in north-central Baffin Island, Northwest Terretories, Canada. Environment and significance. Canadian Journal of Earth Sciences 9, (1972). 233–238.Google Scholar
Bethune, K.M., and Scammell, R.J. Geology, geochronology, and geochemistry of Archean rocks in the Eqe Bay area, north-central Baffin Island, Canada: constraints on the depositional and tectonic history of the Mary River Group of northeastern Rae Province. Canadian Journal of Earth Sciences 40, (2003). 1137–1167.Google Scholar
Blum, J.D., and Erel, Y. Rb–Sr systematics of a granitic soil chronosequence: the importance of biotite weathering. Geochimica et Cosmochimica Acta 61, (1997). 3193–3204.CrossRefGoogle Scholar
Briner, J.P., Miller, G.H., Finkel, R., and Hess, D.P. Glacial erosion at the fjord onset zone and implications for the organization of ice flow on Baffin Island. Geomorphology 97, (2008). 126–134.Google Scholar
Burden, E.T., and Langille, A.B. Stratigraphy and sedimentology of Cretaceous and Paleocene strata in half-grabens on the southeast coast of Baffin Island, Northwest Territories. Bulletin of Canadian Petroleum Geology 38, (1990). 185–196.Google Scholar
Cerling, T.E., and Quade, J. Stable carbon and oxygen isotopes in soil carbonates. Climate Change in Continental Isotopic Records. (1993). American Geophysical Union, 217–231.Google Scholar
Chacko, T., and Deines, P. Theoretical calculation of oxygen isotope fractionation factors in carbonate systems. Geochimica et Cosmochimica Acta 72, 15 (2008). 3642–3660.Google Scholar
Davidson, G.R. The stable isotopic composition and measurement of carbon in soil CO2 . Geochimica et Cosmochimica Acta 59, (1995). 2485–2489.Google Scholar
Dredge, L.A. Till geochemistry results, central Baffin Island, Nunavut (NTS 37A, 37D, 27B, 27C). Geological Survey of Canada, Open File 4543. (2004). Google Scholar
Dyke, A.S. An outline of North American Deglaciation with emphasis on central and northern Canada. Ehlers, J., and Gibbard, P.L. Quaternary Glaciations—Extent and Chronology, Part III. (2004). Elsevier, 373–424.Google Scholar
Eberl, D.D. User guide to RockJock: a program for determining quantitative mineralogy from X-ray diffraction data. U.S. Geological Survey, Open File Report 03–78. (2003). (revised 2009, 40 pp.) Google Scholar
Fairchild, I.J., Bradly, L., and Spiro, B. Carbonate diagenesis in ice. Geology 21, (1993). 901–904.Google Scholar
Farmer, G.L., Broxton, D.E., Warren, R.G., and Pickthorn, W. Nd, Sr, and O isotopic variations in metaluminous ash-flow tuffs and related volcanic rocks at the Timber Mountain/Oasis Valley Caldera Complex, SW Nevada: implications for the origin and evolution of large-volume silicic magma bodies. Contributions to Mineralogy and Petrology 109, (1991). 53–68.CrossRefGoogle Scholar
Farmer, G.L., Barber, D.C., and Andrews, J.T. Provenance of Late Quaternary ice-proximal sediments in the North Atlantic: Nd, Sr and Pb isotopic evidence. Earth and Planetary Science Letters 209, (2003). 227–243.Google Scholar
Ford, T.D., and Pedley, H.M. A review of tufa and travertine deposits of the world. Earth-Science Reviews 41, (1996). 117–175.Google Scholar
Fréchette, B., Wolfe, A.P., Miller, G.H., Richard, P.J.H., and de Vernal, A. Vegetation and climate of the last interglacial on Baffin Island, Arctic Canada. Palaeogeography, Palaeoclimatology, Palaeoecology 236, 1–2 (2006). 91–106.Google Scholar
Frisia, S., Borsato, A., Fairchild, I.J., and McDermott, F. Calcite fabrics, growth mechanisms, and environments of formation in speleothems from the Italian Alps and southwestern Ireland. Journal of Sedimentary Research 70, (2000). 1183–1196.Google Scholar
Ghazban, F., Schwarcz, H.P., and Ford, D.C. Correlated strontium, carbon and oxygen isotopes in carbonate gangue at the Nanisivik zinc-lead deposits, northern Baffin Island, N.W.T. Canada. Chemical Geology (Isotope Geosciences Section) 87, (1991). 137–146.Google Scholar
Hallet, B. Deposits formed by subglacial precipitation of CaCO3 . Geological Society of America Bulletin 87, (1976). 1003–1015.2.0.CO;2>CrossRefGoogle Scholar
Hanshaw, B.B., and Hallet, B. Oxygen isotope composition of subglacially precipitated calcite: possible paleoclimate implications. Science 200, (1978). 1267–1270.Google Scholar
Heiri, O., Lotter, A.F., and Lemcke, G. Loss on ignition as a method for estimating organic and carbonate content in sediments: reproducibility and comparability of results. Journal of Paleolimnology 25, (2001). 101–110.Google Scholar
Hillaire-Marcel, C., and Causse, C. The late Pleistocene Laurentide glacier: Th/U dating of its major fluctuations and δ18O range of the ice. Quaternary Research 32, 2 (1989). 125–138.Google Scholar
Hillaire-Marcel, C., Soucy, J.-M., and Cailleux, A. Analyse isotopique de concretions sousglaciaires de l'inlandsis laurentidien et teneur en oxygene 18 de la glace. Canadian Journal of Earth Sciences 16, (1979). 1494–1498.Google Scholar
Hooke, R.L. Pleistocene ice at the base of the Barnes Ice Cap, Baffin Island, NWT, Canada. Journal of Glaciology 17, (1976). 75 Google Scholar
Hooke, R.L., and Claussen, H.B. Wisconsin and Holocene del18O variations, Barnes Ice Cap, Canada. Geological Society of America Bulletin 93, (1982). 784–789.Google Scholar
Hooke, R.L., Alexander, E.C., and Gustafson, R.J. Temperature profiles in the Barnes Ice Cap, Baffin Island, Canada, and heat flux from the subglacial terrane. Canadian Journal of Earth Sciences 17, (1979). 1174–1188.CrossRefGoogle Scholar
Jackson, G.D. McBeth Gneiss Dome and associated Piling Group, central Baffin Island, District of Franklin. Rubidium–Strontium Isotopic Age Studies, Report 2 (Canadian Shield). Geological Survey of Canada, Paper (1978). 13–17.Google Scholar
Johns, S.M., and Young, M.D. Bedrock geology and economic potential of the Archean Mary River group, northern Baffin Island, Nunavut. Geological Survey of Canada, Current Research 2006-C5. (2006). (13 pp.)Google Scholar
Jouzel, J., and Souchez, R.A. Melting–refreezing at the glacier sole and the isotopic composition of the ice. Journal of Glaciology 28, (1982). 35–42.Google Scholar
Kah, L.C., Lyons, T.W., and Chesley, J.T. Geochemistry of a 1.2 Ga carbonate–evaporite succession, northern Baffin and Bylot Islands: implications for Mesoproterozoic marine evolution. Precambrian Research 111, 1–4 (2001). 203–234.CrossRefGoogle Scholar
Kim, S., and O'Neil, J. Equilibrium and nonequilibrium oxygen isotope effects in synthetic carbonates. Geochimica et Cosmochimica Acta 61, 16 (1997). 3461–3475.Google Scholar
Körner, C., Farquhar, G.D., and Wong, S.C. Carbon isotope discrimination by plants follows latitudinal and altitudinal trends. Oecologia 88, (1991). 30–40.CrossRefGoogle ScholarPubMed
Lacelle, D. Environmental setting, (micro) morphologies and stable CO isotope composition of cold climate carbonate precipitates—a review and evaluation of their potential as paleoclimatic proxies. Quaternary Science Reviews 26, 11–12 (2007). 1670–1689.Google Scholar
Lacelle, D., Lauriol, B., and Clark, I.D. Effect of chemical composition of water on the oxygen-18 and carbon-13 signature preserved in cryogenic carbonates, Arctic Canada: implications in paleoclimatic studies. Chemical Geology 234, (2006). 1–16.Google Scholar
Lacelle, D., Lauriol, B., and Clark, I.D. Origin, age, and paleoenvironmental significance of carbonate precipitates from a granitic environment, Akshayuk Pass, southern Baffin Island, Canada. Canadian Journal of Earth Sciences 44, 1 (2007). 61–79.CrossRefGoogle Scholar
Land, L.S. The isotopic and trace element geochemistry of dolomite: the state of the art. Zenger, D.H., Dunham, J.B., and Ethington, R.L. Concepts and Models of Dolomitization. Society of Economic Paleontologists and Mineralogists Special Publication 28, (1980). 87–110.Google Scholar
Lemmens, M., Lorrain, R., and Haren, J. Isotopic composition of ice and subglacially precipitated calcite in an Alpine area. Zeitschrift für Gletscherkunde und Glazialgeologie 18, 2 (1982). 151–159.Google Scholar
Liu, G., Luo, R., Cao, J., and Cui, Z. Processes and environmental significance of the subglacial chemical deposits in Tianshan Mountains. Science in China Series D: Earth Sciences 48, (2005). 1470–1478.Google Scholar
McArthur, J.M., Howarth, R.J., and Bailey, T.R. Strontium isotope stratigraphy: LOWESS version 3: best fit to the marine Sr-isotope curve for 0–509 Ma and accompanying look-up table for deriving numerical age. The Journal of Geology 109, (2001). 155–170.Google Scholar
McIntyre, D.J. Paleocene palynoflora from northern Somerset Island, District of Franklin, N.W.T. Current Research, Part G, Geologic Survey of Canada, Paper 89-1G. (1989). 191–197.Google Scholar
McIntyre, D.J. Pollen and spore flora of an Eocene forest, eastern Axel Heiberg Island, N.W.T. Tertiary Fossil Forests of the Geodetic Hills, Axel Heiberg Island, Arctic Archipelago. Geological Survey of Canada Bulletin 403, (1991). 83–97.Google Scholar
Mitchell, A.C., and Brown, G.H. Modeling geochemical and biogeochemical reactions in subglacial environments. Arctic, Antarctic, and Alpine Research 40, (2008). 531–547.Google Scholar
Morgan, A.V., Kuc, M., and Andrews, J.T. Paleoecology and age of the Flitaway and Isortoq interglacial deposits, north-central Baffin Island, Northwestern Territories, Canada. Canadian Journal of Earth Sciences 30, (1993). 954–974.CrossRefGoogle Scholar
Morrell, G.R., Fortier, M., Price, P.R., and Polt, R. Petroleum exploration in northern Canada: a guide to oil and gas exploration potential. Minister of Indian Affairs and Northern Development Report. (1995). Google Scholar
Ng, F., and Hallet, B. Patterning mechanisms in subglacial carbonate dissolution and deposition. Journal of Glaciology 48, 162 (2002). 386–400.Google Scholar
Praeg, D.B., Maclean, B., Hardy, I.A., and Mudie, P.J. Quaternary geology of the southeast Baffin Island continental shelf. Geological Survey of Canada, Paper 85–14. (1986). 38 Google Scholar
Refsnider, K.A., and Miller, G.H. Reorganization of ice sheet flow patterns in Arctic Canada and the Mid-Pleistocene Transition. Geophysical Research Letters 37, (2010). L13502 Google Scholar
Refsnider, K.A., and Miller, G.H. Ice-sheet erosion and the stripping of Tertiary regolith from Baffin Island, eastern Canadian Arctic. Quaternary Science Reviews 67, (2013). 176–189.Google Scholar
Refsnider, K.A., Miller, G.H., Briner, J.P., and Rood, D.H. Deciphering ice-sheet erosion in the eastern Canadian Arctic on million-year time scales. Geological Society of America Abstracts with Programs 42, (2010). 230 Google Scholar
Refsnider, K.A., Miller, G.H., Hillaire-Marcel, C., Fogel, M., Ghaleb, B., and Bowden, R. Subglacial carbonates constrain basal conditions and oxygen isotopic composition of the Laurentide Ice Sheet over Arctic Canada. Geology 40, (2012). 135–138.CrossRefGoogle Scholar
Romanek, C.S., Grossman, E.L., and Morse, J.W. Carbon isotopic fractionation in synthetic aragonite and calcite: effects of temperature and precipitation rate. Geochimica et Cosmochimica Acta 56, (1992). 419–430.Google Scholar
Roulston, T.H., Cane, J.H., and Buchmann, S.L. What governs protein content of pollen: pollinator preferences, pollen–pistil interactions, or phylogeny?. Ecological Monographs 40, (2000). 617–643.Google Scholar
Sanford, B.V., and Grant, A.C. New findings relating to the stratigraphy and structure of the Hudson Platform. Current Research, Part D, Geological Survey of Canada, Paper 90-1D. (1990). 17–30.Google Scholar
Sanford, B.V., and Grant, A.C. Paleozoic and Mesozoic geology of the Hudson and southeast Arctic platforms. Geological Survey of Canada, Open File 3595. (1998). Google Scholar
Sharp, M., Tison, J.-L., and Fierrens, G. Geochemistry of subglacial calcites: implications for the hydrology of the basal water film. Arctic and Alpine Research 22, (1990). 141–152.Google Scholar
Souchez, R.A., and Lemmens, M. Subglacial carbonate deposition—an isotopic study of present-day case. Palaeogeography, Palaeoclimatology, Palaeoecology 51, (1985). 357–364.Google Scholar
Srodon, J., Drits, V.A., McCarty, D.K., Hsiem, J.C.C., and Eberl, D.D. Quantitative X-ray diffraction analysis of clay-bearing rocks from random preparations. Clays and Clay Minerals 49, (2001). 514–528.Google Scholar
Staiger, J.W., Gosse, J.C., Little, E.C., Utting, D.J., Finkel, R., Johnson, J.V., and Fastook, J. Glacial erosion and sediment dispersion from detrital cosmogenic nuclide analyses of till. Quaternary Geochronology 1, (2006). 29–42.Google Scholar
St-Onge, M.R., Ford, A., and Henderson, I. Digital geoscience atlas of Baffin Island (south of 70°N and east of 80°W), Nunavut. Geological Survey of Canada Open File 5116 (DVD). (2007). Google Scholar
Svensson, A., Biscayne, P., and Grousset, F. Characterization of late glacial continental dust in the Greenland Ice Core Project ice core. Journal of Geophysical Research 105, D4 (2000). 4637–4656.Google Scholar
Terasmae, J., Webber, P.J., and Andrews, J.T. A study of late-Quaternary plant-bearing beds in north-central Baffin Island, Canada. Arctic 19, (1966). 296–318.Google Scholar
Trettin, H.P. Investigations of Lower Paleozoic geology, Foxe Basin, northeastern Melville Peninsula, and parts of northwestern and central Baffin Island. Geological Survey of Canada, Bulletin 251, (1975). (175 pp.)Google Scholar
Turner, J.V. Kinetic fractionation of carbon-13 during calcium carbonate precipitation. Geochimica et Cosmochimica Acta 46, (1982). 1183–1191.Google Scholar
Utting, D.J., Little, E.C., Young, M.D., McCurdy, M.W., Dyke, A.S., and Girard, I. Till, stream-sediment and bedrock analyses, North Baffin Island, Nunavut (NTS 37E, F, G, H and 47E). Geological Survey of Canada Open File 5742. (2008). Google Scholar
Wanless, R.K., and Loveridge, W.D. Rubidium–strontium isotopic age studies, report 2 (Canadian Shield). Geological Survey of Canada Paper 77-14. (1978). 1–70.Google Scholar
White, J.M. Palynological report on sample of probably Eocene age from NTS 037 E/12, Baffin Island. Geological Survey of Canada Report 05-JMW-2005. (2005). Google Scholar
White, A.F., Bullen, T.D., Vivit, D., Schulz, M.S., and Clow, D.W. The role of disseminated calcite in the chemical weathering of granitoid rocks. Geochimica et Cosmochimica Acta 63, (1999). 1939–1953.Google Scholar
White, A.F., Schulz, M.S., Lowenstern, J.B., Vivit, D., and Bullen, T.D. The ubiquitous nature of accessory calcite in granitoid rocks: implications for weathering, solute evolution, and petrogenesis. Geochimica et Cosmochimica Acta 69, (2005). 1455–1471.Google Scholar
Williams, G.L., and Brideaux, W.W. Palynological analyses of upper Mesozoic and Cenozoic rocks of the Grand Banks, Atlantic continental margin. Geological Survey of Canada, Bulletin 236, (1975). (163 pp.)Google Scholar
Zdanowicz, C.M., Fisher, D.A., Clark, I., and Lacelle, D. An ice-marginal del18O record from Barnes Ice Cap, Baffin Island, Canada. Annals of Glaciology 35, (2002). 145–149.Google Scholar
Zhao, Z.-F., Zheng, Y.-F., Wei, C.-S., and Gong, B. Carbon concentration and isotope composition of granites from southeast China. Physics and Chemistry of the Earth, Part A 26, (2001). 821–833.Google Scholar