John T. Andrews


John T. Andrews 2020: Linking marine core lithofacies and mineral and grain-size compositions on the Baffin Island margin: Changes in provenance and transport. Journal of Sedimentary Research, 90(7): 763-775. DOI: 10.2110/jsr.2020.50

Anne JenningsJohn T. Andrews, Reilly, B., Walczak, M., Jakobsson, M., Mix, A., Stoner, J., Nicholls, K. W., Cheseby, M. 2020: Modern foraminiferal assemblages in northern Nares Strait, Petermann Fjord, and beneath Petermann ice tongue, NW Greenland. Arctic, Antarctic, and Alpine Research, 52(1): 491-511. DOI: 10.1080/15230430.2020.1806986

McCave, I. N., John T. Andrews 2019: Distinguishing current effects in sediments delivered to the ocean by ice: II. Glacial to Holocene changes in high latitude North Atlantic upper ocean flows. Quaternary Science Reviews, 223: article 105902. DOI: 10.1016/j.quascirev.2019.105902

Anne JenningsJohn T. Andrews, Cofaigh, C. O., St-Onge, G., Belt, S., Cabedo-Sanz, P., Pearce, C., Hillaire-Marcel, C., Campbell, D. C. 2018: Baffin Bay paleoenvironments in the LGM and HS1: Resolving the ice-shelf question. Marine Geology, 402(SI): 5-16. DOI: 10.1016/j.margeo.2017.09.002

Lakeman, T. R., Pienkowski, A. J., Nixon, F. C., Furze, M. F. A., Blasco, S., John T. Andrews, King, E. L. 2018: Collapse of a marine-based ice stream during the early Younger Dryas chronozone, western Canadian Arctic. Geology, 46(3): 211-214. DOI: 10.1130/G39665.1

John T. Andrews, Cabedo-Sanz, P., Anne Jennings, Olafsdottir, S., Belt, S. T., Áslaug Geirsdóttir 2018: Sea ice, ice rafting, and ocean climate across Denmark Strait during rapid deglaciation (similar to 16-12 cal ka BP) of the Iceland and East Greenland shelves. Journal of Quaternary Science, 33(1): 112-130. DOI: 10.1002/jqs.3007

John T. Andrews, Klein, A. J., Jenner, K. A., Anne Jennings, Campbell, C. 2018: The variability of Baffin Bay seafloor sediment mineralogy: The identification of discrete glacial sediment sources and application to Late Quaternary downcore analysis. Canadian Journal of Earth Sciences, 55(6): 620-639. DOI: 10.1139/cjes-2017-0223

John T. Andrews, Dunhill, G., Vogt, C., Voelker, A. H. L. 2017: Denmark Strait during the Late Glacial Maximum and Marine Isotope Stage 3: Sediment sources and transport processes. Marine Geology, 390: 181-198. DOI: 10.1016/j.margeo.2017.07.003

Darby, D. A., John T. Andrews, Belt, S. T., Anne Jennings, Cabedo-Sanz, P. 2017: Holocene cyclic records of ice-rafted debris and sea ice variations on the East Greenland and Northwest Iceland margins. Arctic, Antarctic, and Alpine Research, 49(4): 649-672. DOI: 10.1657/AAAR0017-008

Kristjánsdóttir, G. B., Moros, M., John T. AndrewsAnne Jennings 2017: Holocene Mg/Ca, alkenones, and light stable isotope measurements on the outer North Iceland shelf (MD99-2269): A comparison with other multi-proxy data and sub-division of the Holocene. The Holocene, 27(1): 52-62. DOI: 10.1177/0959683616652703

Anne JenningsJohn T. Andrews, Cofaigh, C. O., St Onge, G., Sheldon, C., Belt, S. T., Cabedo-Sanz, P., Hillaire-Marcel, C. 2017: Ocean forcing of Ice Sheet retreat in central west Greenland from LGM to the early Holocene. Earth and Planetary Science Letters, 472: 1-13. DOI: 10.1016/j.epsl.2017.05.007

Sheldon, C., Anne JenningsJohn T. Andrews, Cofaigh, C. Ó., Hogan, K., Dowdeswell, J. A., Seidenkrantz, M.-S. 2016: Ice stream retreat following the LGM and onset of the west Greenland current in Uummannaq Trough, west Greenland. Quaternary Science Reviews, 147(SI): 27-46. DOI: 10.1016/j.quascirev.2016.01.019

Perner, K., Anne Jennings, Moros, M., John T. Andrews, Wacker, L. 2016: Interaction between warm Atlantic-sourced waters and the East Greenland Current in northern Denmark Strait (68 degrees N) during the last 10,600 cal a BP. Journal of Quaternary Science, 31(5): 472-483. DOI: 10.1002/jqs.2872

Bugelmayer-Blaschek, M., Roche, D. M., Renssen, H., John T. Andrews 2016: Internal ice-sheet variability as source for the multi-century and millennial-scale iceberg events during the Holocene? A model study. Quaternary Science Reviews, 138: 119-130. DOI: 10.1016/j.quascirev.2016.01.026

John T. Andrews, Stein, R., Moros, M., Perner, K. 2016: Late Quaternary changes in sediment composition on the NE Greenland margin (similar to 73 degrees N) with a focus on the fjords and shelf. Boreas, 45(3): 381-397. DOI: 10.1111/bor.12169

Anne JenningsJohn T. Andrews, Pearce, C., Wilson, L., Ólafsdóttir, S. 2015: Detrital carbonate peaks on the Labrador shelf, a 13–7 ka template for freshwater forcing from the Hudson Strait outlet of the Laurentide Ice Sheet into the subpolar gyre. Quaternary Science Reviews, 107: 62-80. DOI: 10.1016/j.quascirev.2014.10.022

Pearce, C., John T. Andrews, Bouloubassi, I., Hillaire-Marcel, C., Anne Jennings, Olsen, J., Kuijpers, A., Seidenkrantz, M.-S. 2015: Heinrich 0 on the east Canadian margin: Source, distribution, and timing. Paleoceanography, 30(12): 1613-1624. DOI: 10.1002/2015PA002884

John T. Andrews, Bjork, A. A., Dennis EberlAnne Jennings, Verplanck, E. P. 2015: Significant differences in late Quaternary bedrock erosion and transport: East versus West Greenland similar to 70 degrees N - Evidence from the mineralogy of offshore glacial marine sediments. Journal of Quaternary Science, 30(5): 452-463. DOI: 10.1002/jqs.2787

Vasskog, K., Langebroek, P. M., John T. Andrews, Nilsend, J. E. Ø., Nesje, A. 2015: The Greenland Ice Sheet during the last glacial cycle: Current ice loss and contribution to sea-level rise from a palaeoclimatic perspective. Earth-Science Reviews, 150: 45-67. DOI: 10.1016/j.earscirev.2015.07.006

Sundqvist, H. S., Kaufman, D. S., McKay, N. P., Balascio, N. L., Briner, J. P., Cwynar, L. C., Sejrup, H. P., Seppä, H., Subetto, D. A., John T. Andrews, Axford, Y., Bakke, J., Birks, H. J. B., Brooks, S. J., de Vernal, A., Anne Jennings, Ljungqvist, F. C., Rühland, K. M., Saenger, C., Smol, J. P., Viau, A. E. 2014: Arctic Holocene proxy climate database: New approaches to assessing geochronological accuracy and encoding climate variables. Climate of the Past, 10: 1605-1631. DOI: 10.5194/cp-10-1605-2014

John T. Andrews, Bigg, G. R., Wilton, D. J. 2014: Holocene ice-rafting and sediment transport from the glaciated margin of East Greenland (67-70 degrees N) to the N Iceland shelves: Detecting and modelling changing sediment sources. Quaternary Science Reviews, 91: 204-217. DOI: 10.1016/j.quascirev.2013.08.019

Simon, Q., Hillaire-Marcel, C., St-Onge, G., John T. Andrews 2014: North-eastern Laurentide, western Greenland and southern Innuitian ice stream dynamics during the last glacial cycle. Journal of Quaternary Science, 29(1): 14-26. DOI: 10.1002/jqs.2648

Anne Jennings, Walton, M. E., Cofaigh, C. Ó., Kilfeather, A., John T. Andrews, Ortiz, J. D., de Vernal, A., Dowdeswell, J. A. 2014: Paleoenvironments during Younger Dryas-Early Holocene retreat of the Greenland Ice Sheet from outer Disko Trough, central west Greenland. Journal of Quaternary Science, 29(1): 27-40. DOI: 10.1002/jqs.2652

Mao, L., Piper, D. J. W., Saint-Ange, F., John T. Andrews, Kienast, M. 2014: Provenance of sediment in the Labrador Current: A record of hinterland glaciation over the past 125 ka. Journal of Quaternary Science, 29(7): 650-660. DOI: 10.1002/jqs.2736

John T. Andrews, Vogt, C. 2014: Source to sink: Statistical identification of regional variations in the mineralogy of surface sediments in the western Nordic Seas (58°N–75°N; 10°W–40°W). Marine Geology, 357: 151-162. DOI: 10.1016/j.margeo.2014.08.005

Refsnider, K. A., Gifford H. Miller, Fogel, M. L., Fréchette, B., Bowden, R., John T. Andrews, Farmer, G. L. 2014: Subglacially precipitated carbonates record geochemical interactions and pollen preservation at the base of the Laurentide Ice Sheet on central Baffin Island, eastern Canadian Arctic. Quaternary Research, 81(1): 94-105. DOI: 10.1016/j.yqres.2013.10.014

John T. Andrews, Gibb, O. T., Anne Jennings, Simon, Q. 2014: Variations in the provenance of sediment from ice sheets surrounding Baffin Bay during MIS 2 and 3 and export to the Labrador Shelf Sea: Site HU2008029-0008 Davis Strait. Journal of Quaternary Science, 29(1): 3-13. DOI: 10.1002/jqs.2643

Cofaigh, C. O., Dowdeswell, J. A., Anne Jennings, Hogan, K. A., Kilfeather, A., Hiemstra, J. F., Noormets, R., Evans, J., McCarthy, D. J., John T. Andrews, Lloyd, J. M., Moros, M. 2013: An extensive and dynamic ice sheet on the West Greenland shelf during the last glacial cycle. Geology, 41(2): 219-222. DOI: 10.1130/G33759.1

Cofaigh, C. O., John T. AndrewsAnne Jennings, Dowdeswell, J. A., Hogan, K. A., Kilfeather, A. A., Sheldon, C. 2013: Glacimarine lithofacies, provenance and depositional processes on a West Greenland trough-mouth fan. Journal of Quaternary Science, 28(1): 13-26. DOI: 10.1002/jqs.2569

Hoffman, J. S., Carlson, A. E., Winsor, K., Klinkhammer, G. P., LeGrande, A. N., John T. Andrews, Strasser, J. C. 2012: Linking the 8.2 ka event and its freshwater forcing in the Labrador Sea. Geophysical Research Letters, 39: L18703. DOI: 10.1029/2012GL053047

John T. Andrews, Barber, D. C., Anne JenningsDennis Eberl, Maclean, B., Kirby, M. E., Stoner, J. S. 2012: Varying sediment sources (Hudson Strait, Cumberland Sound, Baffin Bay) to the NW Labrador Sea slope between and during Heinrich events 0 to 4. Journal of Quaternary Science, 27(5): 475-484. DOI: 10.1002/jqs.2535

Axford, Y., Andresen, C. S., John T. Andrews, Belt, S. T., Áslaug Geirsdóttir, Mass, G., Gifford H. Miller, Ólafsdóttir, S., Vare, L. 2011: Do paleoclimate proxies agree? A test comparing 19 late Holocene climate and sea-ice reconstructions from Icelandic marine and lake sediments. Journal of Quaternary Science, 26(6): 645-656. DOI: 10.1002/jqs.1487

John T. Andrews, Eberl, D. 2011: Surface (sea floor) and near-surface (box cores) sediment mineralogy in Baffin Bay as a key to sediment provenance and ice sheet variations. Canadian Journal of Earth Sciences, 48: 1307-1328. DOI: 10.1139/E11-021

John T. Andrews 2011: Unraveling sediment transport along glaciated margins (the northwestern Nordic seas) using quantitative x-ray diffraction of bulk (<2mm) sediment. In Bhuiyan, F. (ed.), Sediment Transport: Flow and Morphological Processes. Rijeka, Croatia: InTech, 225 248.

Giraudeau, J., Grelaud, M., Solignac, S., John T. Andrews, Moros, M., Jansen, E. 2010: Millennial-scale variability in Atlantic water advection to the Nordic Seas derived from Holocene coccolith concentration records. Quaternary Science Reviews, 29(9-10): 1276 1287, DOI: 10.1016/j.quascirev.2010.02.014

Ursula QuillmannAnne JenningsJohn T. Andrews 2010: Reconstructing Holocene palaeoclimate and palaeoceanography in Ìsafjarðardjúp, northwest Iceland, from two fjord records overprinted by relative sea-level and local hydrographic changes. Journal of Quaternary Science, 27(7): 1144-1159 DOI: 10.1002/jqs.1395

Sejrup, H. P., Scott J. Lehman, Haflidason, H., Noone, D., Muscheler, R., Berstad, I. M., John T. Andrews 2010: Response of Norwegian Sea temperature to solar forcing since 1000 A.D. Journal of Geophysical Research—Oceans, 115: C12034. DOI: 10.1029/2010JC006264

Belt, S. T., Vare, L. L., Masse, G., Manners, H. R., Price, J. C., MacLachlan, S. E., John T. Andrews, Schmidt, S. 2010: Striking similarities in temporal changes to spring sea ice occurrence across the central Canadian Arctic Archipelago over the last 7000 years. Quaternary Science Reviews, 29(25-26): 3489 3504, DOI: 10.1016/j.quascirev.2010.06.041

Patterson, W. P., Dietrich, K. A., Holmden, C., John T. Andrews 2010: Two millennia of North Atlantic seasonality and implications for Norse colonies. Proceedings of the National Academy of Sciences of the U.S.A., 107(12): 5306 5310, DOI: 10.1073/pnas.0902522107

John T. Andrews, Hardardttir, J. 2009: A comparison of Holocene sediment- and paleo-magnetic characteristics from the margins of Iceland and East Greenland. Jkull, 59: 51 66.

Polyak, L., John T. Andrews, Brigham-Grette, J., Darby, D., Dyke, A., Funder, S., Holland, M., Anne Jennings, Savelle, J., Serreze, M., Wolff, E. 2009: History of sea ice in the Arctic. In Past Climate Variability and Change in the Arctic and at High Latitudes. A report by the U.S. Climate Change Program and Subcommittee on Global Change Research. Reston, Virginia: U.S. Geological Survey, 358 420.

Alley, R. B., John T. Andrews, Clarke, G. K. C., Cuffey, K. M., Funder, S., Marshall, S. J., Mitrovica, J. X., Daniel R. Muhs, Otto-Bleisner, B. 2009: Past extent and status of the Greenland Ice Sheet. In Past Climate Variability and Change in the Arctic and at High Latitudes. A report by the U.S. Climate Change Program and Subcommittee on Global Change Research. Reston, Virginia: U.S. Geological Survey, 303 357.

John T. Andrews, Belt, S. T., Ólafsdóttir, S., Mass, G., Vare, L. L. 2009: Sea ice and marine climate variability for NW Iceland/Denmark Strait over the last 2000 cal. yr BP. The Holocene, 19(5): 775-784. DOI: 10.1177/0959683609105302

John T. Andrews 2009: Seeking a Holocene drift ice proxy: non-clay mineral variations from the SW to N-central Iceland shelf: trends, regime shifts, and periodicities. Journal of Quaternary Science, 24(7): 664 676, DOI: 10.1002/jqs.1257

John T. Andrews 2009: Wisconsinan (Weichselian, Wrm) glaciation. In Gornitz, V. (ed.), Encyclopedia of Paleoclimatology and Ancient Environments. Dordrecht: Springer, 986 992.

John T. Andrews, Hardardttir, J., Stoner, J. S., Principato, S. M. 2008: Holocene sediment magnetic properties along a transect from safjardardjp to Djpll, northwest Iceland. Arctic, Antarctic, and Alpine Research, 40(1): 1 14.

Walker, M., Johnsen, S., Rasmussen, S. O., Steffensen, J. P., Popp, T., Gibbard, P., Hoek, W. Z., Lowe, J., John T. Andrews, Bjorck, S., Cwynar, L. C., Hughen, K., Kershaw, P., Kromer, B., Litt, T., Lowe, D. J., Nakagawa, T., Newnham, R., Schwander, J. 2008: The Global Stratotype Section and Point (GSSP) of the base of the Holocene Series/Epoch (Quaternary System/Period) in the NGRIP ice core. Episodes, 31(2): 264 267.

John T. Andrews 2008: The role of the Iceland Ice Sheet in sediment delivery to the North Atlantic during the late Quaternary: How important was it? Evidence from the area of Denmark Strait. Journal of Quaternary Science, 23(1): 3-20. DOI: 10.1002/jqs.1142

Stoner, J. S., Anne Jennings, Kristjansdttir, G. B., John T. Andrews, Dunhill, G., Hardardttir, J. 2007: A paleomagnetic approach toward refining Holocene radiocarbon based chronostratigraphies: Paleoceanographic records from North Iceland (MD99-2269) and East Greenland (MD99-2322) margins. Palaeoceanography, 22: PA1209. DOI: 1210:1029/2006PA001285, 002007

Parnell, J., Bowden, S., Taylor, C., John T. Andrews 2007: Biomarker determination as a provenance tool for detrital carbonate events (Heinrich events?): Fingerprinting Quaternary glacial sources in Baffin Bay. Earth and Planetary Science Letters, 257: 71 82.

Kristjansdttir, G. B., Stoner, J. S., Gronvold, K., John T. AndrewsAnne Jennings 2007: Geochemistry of Holocene cryptotephras from the North Iceland Shelf (MD99-2269): Intercalibration with radiocarbon and paleomagnetic chronostratigraphies. The Holocene, 17: 155 176.

John T. Andrews 2007: Holocene denudation of Iceland as determined from accumulation of sediments on the continental margin. Boreas, 36: 240 252.

John T. AndrewsDennis Eberl 2007: Quantitative mineralogy of surface sediments on the Iceland shelf, and application to down-core studies of Holocene ice-rafted sediments. Journal Sedimentary Research, 77: 469 479.

Anne Jennings, Hald, M., Smith, L. M., John T. Andrews 2006: Freshwater forcing from the Greenland Ice Sheet during the Younger Dryas: Evidence from southeastern Greenland shelf cores. Quaternary Science Reviews, 25: 282 298.

John T. Andrews 2006: Glaciers, oceans, atmsophere and climate. In Knight, P. G. (ed.), Glacier Science and Environmental Change. London: Blackwell, 96 114.( ( Andrews, J. T.,

John T. AndrewsAnne Jennings, Moros, M., Hillaire-Marcel, C., Dennis Eberl 2006: Is there a pervasive Holocene ice-rafted debris (IRD) signal in the northern North Atlantic? The answer appears to be either no, or it depends on the proxy!. PAGES Newsletter, 14: 7 9.

Farmer, G. L., Licht, K. J., Swope, J. R., John T. Andrews 2006: Isotopic constraints on the provenance of fine-grained sediment in LGM tills from the Ross Embayment, Antarctica. Earth and Planetary Science Letters, 249: 90 107.

Principato, S. M., Áslaug Geirsdóttir, Johannsdottir, G. E., John T. Andrews 2006: Late Quaternary glacial and deglacial history of eastern Vestfirdir, Iceland using cosmogenic isotope (36Cl) exposure ages and marine cores. Journal of Quaternary Science, 21: 271 286.

Moros, M., John T. AndrewsDennis Eberl, Jansen, E. 2006: The Holocene history of drift ice in the northern North Atlantic: Evidence for different spatial and temporal modes. Palaeoceanography, 21: article PA001214.

John T. Andrews, Eberl, D. D., Kristjansdottir, G. B. 2006: The Laurentide Ice Sheet: A review of history and processes. In Knight, P. G. (ed.), Glacier Science and Environmental Change. London: Blackwell, 201-208.

Alley, R. B., John T. Andrews, Barber, D. C., Clark, P. U. 2005: Comment on Catastrophic ice shelf breakup as the source of Heinrich event icebergs, by C.L. Hulbe et al. Palaeoceanography, 20. DOI: 10:1029/2004PA001086

Principato, S. M., Anne Jennings, Kristjansdottir, G. B., John T. Andrews 2005: Glacial-marine or subglacial origin of diamicton units from the southwest and North Iceland shelf: Implications for the glacial history of Iceland. Journal of Sedimentary Research, 75: 968 983.

John T. Andrews 2005: Late Quaternary marine sediment studies of the Iceland shelf, Paleoceanography and land/ice sheet/ocean interactions. In Caseldine, C., Russell, A., Hardardottir, J. and O. Knudsen (eds.), Iceland Modern processes and past environments. London: Elsevier, 5 24.

Smith, L. M., John T. Andrews, Castaneda, I. S., Kristjansdottir, G. B., Anne Jennings, Sveinbjjronsdottir, A. E. 2005: Temperature reconstructions for SW and N Iceland waters over the last 10,000 cal yr B.P. based on "18O records from planktic and benthic Foraminifera. Quaternary Science Reviews, 24: 1723 1740.

John T. Andrews, Dunhill, G. 2004: Early to mid-Holocene Atlantic Water influx and deglacial meltwater events, Beaufort Sea Slope, Arctic Ocean. Quaternary Research, 61(1): 14-21.

Kaufman, D. S., Ager, T. A., Anderson, N. J., Anderson, P. M., John T. Andrews, Bartlein, P. J., Brubaker, L. B., Coats, L. L., Cwynar, L. C., Duvall, M. L., Dyke, A. S., Edwards, M. E., Eisner, W. R., Gajewski, K., Giersdóttir, A., Hu, F. S., Anne Jennings, Kaplan, M. R., Kerwin, M. W., Lozhkin, A. V., MacDonald, G. M., Gifford H. Miller, Mock, C. J., Oswald, W. W., Otto-Bliesner, B. L., Porinchu, D. F., Rühland, K., Smol, J. P., Steig, E. J., Wolfe, B. B. 2004: Holocene thermal maximum in the western Arctic (0-180W). Quaternary Science Reviews, 23(5-6): 529-560. DOI: 10.1016/j.quascirev.2003.09.007

Anne Jennings, Weiner, N. J., Helgadottir, G., John T. Andrews 2004: Modern foraminiferal faunas of the SW to N Iceland Shelf: Oceanographic and environmental controls. Journal of Foraminiferal Research, 34: 180-207.

Andersen, A., Koç, N., Anne JenningsJohn T. Andrews 2004: Nonuniform response of the major surface currents of the Nordic Seas to insolation forcing: Implications for the Holocene climate variability. Paleoceanography, 19(2): article PA2003. DOI: 10.1029/2002PA000873

Dunhill, G., John T. Andrews, Kristjánsdóttir, G. B. 2004: Radiocarbon date list X: Baffin Bay, Baffin Island, Iceland, Labrador, and the northern North Atlantic. Occasional Paper No. 56, Institute of Arctic and Alpine Research, University of Colorado, Boulder: 77 pp.

Castaneda, I. S., Smith, M. L., Kristjánsdóttir, G. B., John T. Andrews 2004: Temporal changes in Holocene delta18O records from the northwest and central North Iceland Shelf. Journal of Quaternary Science, 19(4): 321-334. DOI: 10.1002/jqs.841

Giraudeau, J., Anne JenningsJohn T. Andrews 2004: Timing and mechanisms of surface and intermediate water circulation changes in the Nordic Seas over the last 10,000 cal years: A view from the North Iceland shelf. Quaternary Science Reviews, 23(20-22): 2127-2139.

John T. Andrews, Hardardóttir J., Kristjánsdóttir, G. B., Grönvold, K., Stoner, J. S. 2003: A high-resolution Holocene sediment record from Hnaflall, N Iceland margin: Century- to millennial-scale variability since the Vedde tephra. The Holocene, 13(5): 625-638.

John T. Andrews, Hardardóttir, J., Stoner, J. S., Mann, M. E., Kristjánsdóttir, G. B., Koç, N. 2003: Decadal to millennial-scale periodicities in North Iceland shelf sediments over the last 12000 cal yr: Long-term North Atlantic oceanographic variability and solar forcing. Earth and Planetary Science Letters, 210(3-4): 453-465.

John T. Andrews, MacLean, B. 2003: Hudson Strait ice streams: A review of stratigraphy, chronology and links with North Atlantic Heinrich events. Boreas, 32(1): 4-17.

John T. Andrews, Helgadóttir, G. 2003: Late Quaternary ice cap extent and deglaciation, Húnaflóaáll, northwest Iceland: Evidence from marine cores. Arctic, Antarctic, and Alpine Research, 35(2): 218-232.

John T. Andrews, Cartee-Schoolfield, S. 2003: Late Quaternary lithofacies, provenance, and depositional environments (~12-30 cal ka), north and south of the Denmark Strait. Marine Geology, 199(1-2): 65-82.