globalchange  > 气候变化与战略
DOI: 10.1073/pnas.1516030113
论文题名:
Antarctic ice sheet sensitivity to atmospheric CO 2 variations in the early to mid-Miocene
作者: Levy R.; Harwood D.; Florindo F.; Sangiorgi F.; Tripati R.; von Eynatten H.; Gasson E.; Kuhn G.; Tripati A.; Deconto R.; Fielding C.; Field B.; Golledge N.; McKay R.; Naish T.; Olney M.; Pollard D.; Schouten S.; Talarico F.; Warny S.; Willmott V.; Acton G.; Panter K.; Paulsen T.; Taviani M.; Askin R.; Atkins C.; Bassett K.; Beu A.; Blackstone B.; Browne G.; Ceregato A.; Cody R.; Cornamusini G.; Corrado S.; Del Carlo P.; Di Vincenzo G.; Dunbar G.; Falk C.; Frank T.; Giorgetti G.; Grelle T.; Gui Z.; Handwerger D.; Hannah M.; Harwood D.M.; Hauptvogel D.; Hayden T.; Henrys S.; Hoffmann S.; Iacoviello F.; Ishman S.; Jarrard R.; Johnson K.; Jovane L.; Judge S.; Kominz M.; Konfirst M.; Krissek L.; Lacy L.; Maffioli P.; Magens D.; Marcano M.C.; Millan C.; Mohr B.; Montone P.; Mukasa S.; Niessen F.; Ohneiser C.; Passchier S.; Patterson M.; Pekar S.; Pierdominici S.; Raine I.; Reed J.; Reichelt L.; Riesselman C.; Rocchi S.; Sagnotti L.; Sandroni S.; Schmitt D.; Speece M.; Storey B.; Strada E.; Tuzzi E.; Verosub K.; Wilson G.; Wilson T.; Wonik T.; Zattin M.; SMS Science Team
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2016
卷: 113, 期:13
起始页码: 3453
结束页码: 3458
语种: 英语
英文关键词: Antarctica ; Climate Optimum ; Ice sheet ; Miocene ; Ross Sea
Scopus关键词: carbon dioxide ; oxygen ; air temperature ; Antarctica ; arctic climate ; Article ; atmospheric dispersion ; climate change ; concentration (parameters) ; fossil ; geochemistry ; heat ; ice sheet ; latitude ; Middle Miocene ; priority journal ; temperature sensitivity
英文摘要: Geological records from the Antarctic margin offer direct evidence of environmental variability at high southern latitudes and provide insight regarding ice sheet sensitivity to past climate change. The early to mid-Miocene (23-14 Mya) is a compelling interval to study as global temperatures and atmospheric CO 2 concentrations were similar to those projected for coming centuries. Importantly, this time interval includes the Miocene Climatic Optimum, a period of global warmth during which average surface temperatures were 3-4 °C higher than today. Miocene sediments in the ANDRILL-2A drill core from the Western Ross Sea, Antarctica, indicate that the Antarctic ice sheet (AIS) was highly variable through this key time interval. A multiproxy dataset derived from the core identifies four distinct environmental motifs based on changes in sedimentary facies, fossil assemblages, geochemistry, and paleotemperature. Four major disconformities in the drill core coincide with regional seismic discontinuities and reflect transient expansion of grounded ice across the Ross Sea. They correlate with major positive shifts in benthic oxygen isotope records and generally coincide with intervals when atmospheric CO 2 concentrations were at or below preindustrial levels (∼280 ppm). Five intervals reflect ice sheet minima and air temperatures warm enough for substantial ice mass loss during episodes of high (∼500 ppm) atmospheric CO 2 . These new drill core data and associated ice sheet modeling experiments indicate that polar climate and the AIS were highly sensitive to relatively small changes in atmospheric CO 2 during the early to mid-Miocene.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/162124
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作者单位: Levy, R., Department of Paleontology, GNS Science, Lower Hutt, 5040, New Zealand, GNS Science, 1 Fairway Drive, PO Box 30 368, Lower Hutt, New Zealand; Harwood, D., Department of Earth & Atmospheric Sciences, University of Nebraska, Lincoln, NE 68588, United States; Florindo, F., Istituto Nazionale di Geofisica e Vulcanologia, Rome, I-00143, Italy, Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy; Sangiorgi, F., Marine Palynology and Paleoceanography, Laboratory of Palaeobotany and Palynology, Department of Earth Sciences, Utrecht University, Utrecht, 3584 CD, Netherlands, Marine Palynology and Paleoceanography, Laboratory of Palaeobotany and Palynology, Department of Earth Sciences, Utrecht University, Utrecht, Netherlands; Tripati, R., Institute of the Environment and Sustainability, University of California, Los Angeles, CA 90024, United States, Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, CA 90095, United States; von Eynatten, H., Department of Sedimentology & Environmental Geology, Geoscience Center Göttingen, Göttingen, 37077, Germany, Department of Sedimentology & Environmental Geology, Geoscience Center Göttingen, Göttingen, Germany; Gasson, E., Department of Geosciences, University of Massachusetts, Amherst, MA 01003, United States; Kuhn, G., Alfred Wegener Institute for Polar & Marine Research, Bremerhaven, 27568, Germany, Alfred Wegener Institute for Polar & Marine Research, Bremerhaven, Germany; Tripati, A., Institute of the Environment and Sustainability, University of California, Los Angeles, CA 90024, United States, Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, CA 90095, United States; Deconto, R., Department of Geosciences, University of Massachusetts, Amherst, MA 01003, United States, Department of Geosciences, University of Massachusetts, Amherst, MA, United States; Fielding, C., Department of Earth & Atmospheric Sciences, University of Nebraska, Lincoln, NE 68588, United States, Department of Earth & Atmospheric Sciences, University of Nebraska-Lincoln, Lincoln, NE, United States; Field, B., Department of Paleontology, GNS Science, Lower Hutt, 5040, New Zealand, Department of Petroleum Geology, GNS Science, Lower Hutt, New Zealand; Golledge, N., Department of Paleontology, GNS Science, Lower Hutt, 5040, New Zealand, Antarctic Research Centre, Victoria University of Wellington, Wellington, 6012, New Zealand; McKay, R., Antarctic Research Centre, Victoria University of Wellington, Wellington, 6012, New Zealand; Naish, T., Department of Paleontology, GNS Science, Lower Hutt, 5040, New Zealand, Antarctic Research Centre, Victoria University of Wellington, Wellington, 6012, New Zealand, Antarctic Research Centre, Victoria University of Wellington, Wellington, New Zealand; Olney, M., Hillsborough Community College, Tampa, FL 10414, United States, Hillsborough Community College, Tampa, FL, United States; Pollard, D., Earth & Environmental Systems Institute, Pennsylvania State University, University Park, PA 16802, United States, Earth & Environmental Systems Institute, Pennsylvania State University, University Park, PA, United States; Schouten, S., Marine Organic Biogeochemistry, Royal Netherlands Institute for Sea Research, ’t Horntje (Texel), 1797 SZ, Netherlands; Talarico, F., Dipartimento di Scienze Fisiche della Terra e dell’Ambiente, Università degli Studi di Siena, Siena, I-53100, Italy, Università di Siena, Dipartimento di Scienze delle Terra, Via Laterina 8, Siena, I-53100, Italy; Warny, S., Department of Geology & Geophysics and Museum of Natural Science, Louisiana State University, Baton Rouge, LA 70803, United States, Department of Geology & Geophysics, and Museum of Natural Science, Louisiana State University, Baton RougeLA, United States; Willmott, V., Alfred Wegener Institute for Polar & Marine Research, Bremerhaven, 27568, Germany; Acton, G., Department of Geography & Geology, Sam Houston State University, Huntsville, TX 77341, United States, University of California, Davis Department of GeologyCA 95616, United States; Panter, K., Department of Geology, Bowling Green State University, Bowling Green, OH 43403, United States, Department of Geology, Bowling Green State University, Bowling Green, OH, United States; Paulsen, T., Department of Geology, University of Wisconsin-Oshkosh, Oshkosh, WI 54901, United States, Department of Geology, Harrington Hall, University of Wisconsin – Oshkosh, Oshkosh, WI, United States; Taviani, M., Institute of Marine Sciences, National Research Council, Bologna, 40129, Italy, Institute of Marine Sciences - National Research Council, ISMAR-CNR, Bologna, Italy; Askin, R., 1930 W. Bunkhouse Drive, Jackson, WY 83001, United States; Atkins, C., Victoria University of Wellington, School of Geography, Environment and Earth Sciences, PO Box 600, Wellington, 6005, New Zealand; Bassett, K., University of Canterbury, Department of Geological Sciences, Private Bag 4800, 22 Kirkwood Avenue, Christchurch, New Zealand; Beu, A., GNS Science, 1 Fairway Drive, Avalon, PO Box 30 368, Lower Hutt, New Zealand; Blackstone, B., University of Nebraska-Lincoln, Department of Geosciences, 214 Bessey Hall, Lincoln, NE 68588-0340, United States; Browne, G., GNS Science, 1 Fariway Drive, PO Box 30 368, Lower Hutt, New Zealand; Ceregato, A., Consiglio Nazionale delle Ricerche (CNR), ISMAR, Via Gobetti 101, Bologna, I-40129, Italy; Cody, R., Antarctic Research Centre, Victoria University of Wellington, PO Box 600, Wellington, New Zealand; Cornamusini, G., University of Siena, Department of Earth Sciences, Via Laterina 8, Siena, I-53100, Italy; Corrado, S., Università degli Studi Roma TRE, Dipartimento di Scienze Geologiche, Largo San Leonardo Murialdo 1, Rome, I-00146, Italy; Del Carlo, P., Istituto Nazionale di Geofisica e Vulcanologia – Sezione di Pisa, Via della Faggiola 32, Pisa, I-56126, Italy; Di Vincenzo, G., Consiglio Nazionale delle Ricerche (CNR), Istituto di Geoscienze e Georisorse, Via Moruzzi 1, Pisa, I-56124, Italy; Dunbar, G., Victoria University of Wellington, Antarctic Research Centre, PO Box 600, Wellington, 6005, New Zealand; Falk, C., Montclair State University, Department of Earth & Environmental Studies, Montclair, NJ 07043, United States; Frank, T., University of Nebraska-Lincoln, Department of Geosciences, Lincoln, NE 68588-0340, United States; Giorgetti, G., Università di Siena, Dipartimento di Scienze della Terra, via Laterina 8, Siena, I-53100, Italy; Grelle, T., Leibniz Institute of Applied Geophysics (LIAG), Stilleweg 2, Hannover, D-30655, Germany; Gui, Z., University of Nebraska-Lincoln, Department of Geosciences, Lincoln, NE 68588-0340, United States; Handwerger, D., 1066 Harvard Avenue, Salt Lake City, UT 84105, United States; 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Johnson, K., Eastern Illinois University, Dept of Geology and Geography, Charleston, IL 61920, United States; Jovane, L., University of California at Davis, Department of Geology, Davis, CA 95616, United States; Judge, S., The College of Wooster, Department of Geology, Wooster, OH 44691, United States; Kominz, M., Western Michigan University, Department of Geosciences, Kalamazoo, MI 49008, United States; Konfirst, M., Northern Illinois University, Department of Geology & Environmental Geosciences, Davis Hall, Dekalb, IL 60115, United States; Krissek, L., Ohio State University, School of Earth Sciences, Columbus, OH 43210, United States; Lacy, L., University of Nebraska-Lincoln, ANDRILL Science Management Office, Lincoln, NE 68588-0341, United States; Maffioli, P., Università Milano-Bicocca, Dipartimento di Scienze Geologiche e Geotecnologie, Piazza della Scienza 4, Milano, I-20126, Italy; Magens, D., Alfred Wegener Institute, Department of Marine Geophyiscs, Postfach 12 01 61, Columbusstrasse, Bremerhaven D-27515, Germany; Marcano, M.C., University of Michigan, Department of Geological Sciences, Ann Arbor, MI 48109-1005, United States; Millan, C., Ohio State University, School of Earth Sciences, Columbus, OH 43210, United States; Mohr, B., Museum of Natural History, Collections, Invalidenstrasse 43Berlin D-10115, Germany; Montone, P., Istituto Nazionale di Geofisica, Via di Vigna Murata 605, Rome, I-00143, Italy; Mukasa, S., University of Michigan, Department of Geological� Sciences, Ann ArborMI 48109-1005, United States; Niessen, F., Alfred Wegener Institute, Department of Marine Geophyiscs, Postfach 12 01 61, Columbusstrasse, Bremerhaven D-27515, Germany; Ohneiser, C., University of Otago, Department of Geology, PO Box 56, Dunedin, New Zealand; Passchier, S., Montclair State University, Earth and Environmental Studies, Montclair, NJ 07043, United States; Patterson, M., Department of Geosciences, University of Massachusetts, Amherst, MA, United States; Pekar, S., Queens College, School of Earth and Environmental Sciences, Flushing, NY 11367, United States; 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Maria, 53, Pisa, I-56126, Italy; Sagnotti, L., Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata 605, Rome, I-0014, Italy; Sandroni, S., Sezione Scienze della Terra – Siena, Museo Nazionale dell’Antartide, Via Laterina 8, Siena, I-53100, Italy; Schmitt, D., University of Alberta, The Institute for Geophysical Research, Department of Physics, Edmonton, T6G 2G7, Canada; Speece, M., Montana Tech of the University of Montana, Department of Geophysical Engineering, Butte, MT 59701-8997, United States; Storey, B., University of Canterbury, Gateway Antarctica, Private Bag 4800, Christchurch, 8020, New Zealand; Strada, E., Università di Siena, Dipartimento di Scienze delle Terra, Via Laterina 8, Siena, I-53100, Italy; Tuzzi, E., University of Nebraska-Lincoln, Department of Geosciences, Lincoln, NE 68588-0340, United States; Verosub, K., University of California at Davis, Department of Geology, Davis, CA 95616, United States; Wilson, G., University of Otago, Department of Marine Science & Department of Geology, Dunedin, 9054, New Zealand; Wilson, T., Ohio State University, School of Earth Sciences, Columbus, OH 43210, United States; Wonik, T., Leibniz Institute for Applied Geophysics (LIAG), Stilleweg 2, Hannover, D-30655, Germany; Zattin, M., Università di Padova, Dipartimento di Geoscienze, Via Giotto 1, Padova, I-35137, Italy; SMS Science Team

Recommended Citation:
Levy R.,Harwood D.,Florindo F.,et al. Antarctic ice sheet sensitivity to atmospheric CO 2 variations in the early to mid-Miocene[J]. Proceedings of the National Academy of Sciences of the United States of America,2016-01-01,113(13)
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