Evidence for an additional Heinrich event between H5 and H6 in the Labrador Sea
作者： Harunur Rashid , Reinhard Hesse , David J. W. Piper
DOI: 10.1029/2003PA000913
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摘要: [1] An additional Heinrich ice-rafting event is identified between events 5 and 6 in eight cores from the Labrador Sea northwest Atlantic Ocean. It characterized by sediment rich detrital carbonate (40% CaCO3) with high concentration of floating dropstones, coarse-fraction (% > 150 μm) content, has a sharp contact underlying but grades into overlying hemipelagic sediment. also shows lighter δ18ONpl values, indicating freshening due to iceberg rafting and/or meltwater discharge. This correlated Dansgaard-Oeschger 14 interpreted as an event, H5a. The thickness H5a reaches up 220 cm. been reported PS2644 SO82-5 northern North Atlantic. With recognition temporal spacing 1 becomes more uniform (∼7 ka).
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researchgate.net 参考文章(64)
Antje H L Voelker, Pieter M Grootes, Marie-Josee Nadeau, Michael Sarnthein, Radiocarbon levels in the Iceland Sea from 25-53 kyr and their link to the Earth's magnetic field intensity. Radiocarbon. ,vol. 42, pp. 437- 452 ,(2000) , 10.1017/S0033822200030368
Gerard C. Bond, William Showers, Mary Elliot, Michael Evans, Rusty Lotti, Irka Hajdas, Georges Bonani, Sigfus Johnson, The North Atlantic's 1–2 kyr climate rhythm: Relation to Heinrich events, Dansgaard/Oeschger cycles and the Little Ice Age Mechanisms of Global Climate Change at Millennial Time Scales. ,vol. 112, pp. 35- 58 ,(1999) , 10.1029/GM112P0035
Garry K. C. Clarke, Shawn J. Marshall, Claude Hillaire-Marcel, Guy Bilodeau, Christine Veiga-Pires, A Glaciological perspective on Heinrich events Mechanisms of Global Climate Change at Millennial Time Scales. ,vol. 112, pp. 243- 262 ,(1999) , 10.1029/GM112P0243
Tine L. Rasmussen, Delia W. Oppo, Erik Thomsen, Scott J. Lehman, Deep sea records from the southeast Labrador Sea: Ocean circulation changes and ice-rafting events during the last 160,000 years Paleoceanography. ,vol. 18, pp. n/a- n/a ,(2003) , 10.1029/2001PA000736
Minze Stuiver, Paula J. Reimer, Edouard Bard, J. Warren Beck, G. S. Burr, Konrad A. Hughen, Bernd Kromer, Gerry McCormac, Johannes Van Der Plicht, Marco Spurk, INTCAL98 Radiocarbon Age Calibration, 24,000-0 cal BP Radiocarbon. ,vol. 40, pp. 1041- 1083 ,(1998) , 10.1017/S0033822200019123
Hartmut Heinrich, Origin and Consequences of Cyclic Ice Rafting in the Northeast Atlantic Ocean During the Past 130,000 Years Quaternary Research. ,vol. 29, pp. 142- 152 ,(1988) , 10.1016/0033-5894(88)90057-9
Dong Wang, Reinhard Hesse, Continental slope sedimentation adjacent to an ice-margin. II. Glaciomarine depositional facies on labrador slope and glacial cycles Marine Geology. ,vol. 135, pp. 65- 96 ,(1996) , 10.1016/S0025-3227(96)00012-6
Gerard Bond, Hartmut Heinrich, Wallace Broecker, Laurent Labeyrie, Jerry McManus, John Andrews, Sylvain Huon, Ruediger Jantschik, Silke Clasen, Christine Simet, Kathy Tedesco, Mieczyslawa Klas, Georges Bonani, Susan Ivy, Evidence for massive discharges of icebergs into the North Atlantic ocean during the last glacial period Nature. ,vol. 360, pp. 245- 249 ,(1992) , 10.1038/360245A0
Michael Bender, Todd Sowers, Mary-Lynn Dickson, Joseph Orchardo, Pieter Grootes, Paul A. Mayewski, Debra A. Meese, Climate correlations between Greenland and Antarctica during the past 100,000 years Nature. ,vol. 372, pp. 663- 666 ,(1994) , 10.1038/372663A0
D. R. MacAyeal, Binge/purge oscillations of the Laurentide Ice Sheet as a cause of the North Atlantic's Heinrich events Paleoceanography. ,vol. 8, pp. 775- 784 ,(1993) , 10.1029/93PA02200