Chronostratigraphic constrains for sediment core AND1-1B

Tipo Dataset Classe Dati Geologici (terrestri e marini)

D-ANDRILL Datum level DEPTH, sediment/rock Depth, top/min Depth, bottom/max Method comment Age model Age model, optional Age, error Ageprofile Datum Description Age, comment Drilling/drill rig MIS McMurdo Station Antarctic Geological Drilling (ANDRILL) Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas (SPP1158)


Thirty years after oxygen isotope records from microfossils deposited in ocean sediments confirmed the hypothesis that variations in the Earth's orbital geometry control the ice ages (Hays et al., 1976, doi:10.1126/science.194.4270.1121), fundamental questions remain over the response of the Antarctic ice sheets to orbital cycles (Raymo and Huybers, 2008, doi:10.1038/nature06589). Furthermore, an understanding of the behaviour of the marine-based West Antarctic ice sheet (WAIS) during the 'warmer-than-present' early-Pliocene epoch (~5-3 Myr ago) is needed to better constrain the possible range of ice-sheet behaviour in the context of future global warming (Solomon et al., 2007). Here we present a marine glacial record from the upper 600 m of the AND-1B sediment core recovered from beneath the northwest part of the Ross ice shelf by the ANDRILL programme and demonstrate well-dated, ~40-kyr cyclic variations in ice-sheet extent linked to cycles in insolation influenced by changes in the Earth's axial tilt (obliquity) during the Pliocene. Our data provide direct evidence for orbitally induced oscillations in the WAIS, which periodically collapsed, resulting in a switch from grounded ice, or ice shelves, to open waters in the Ross embayment when planetary temperatures were up to ~3° C warmer than today ( Kim and Crowley, 2000, doi:10.1029/1999PA000459) and atmospheric CO2 concentration was as high as ~400 p.p.m.v. (van der Burgh et al., 1993, doi:10.1126/science.260.5115.1788, Raymo et al., 1996, doi:10.1016/0377-8398(95)00048-8). The evidence is consistent with a new ice-sheet/ice-shelf model (Pollard and DeConto, 2009, doi:10.1038/nature07809) that simulates fluctuations in Antarctic ice volume of up to +7 m in equivalent sea level associated with the loss of the WAIS and up to +3 m in equivalent sea level from the East Antarctic ice sheet, in response to ocean-induced melting paced by obliquity. During interglacial times, diatomaceous sediments indicate high surface-water productivity, minimal summer sea ice and air temperatures above freezing, suggesting an additional influence of surface melt (Huybers, 2006, doi:10.1126/science.1125249) under conditions of elevated CO2.

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Naish T. R., Powell R., Levy R. H., Wilson G. S., Scherer R. P., Talarico F. M., Krissek L. A., Niessen F., Pompilio M., Wilson T., Carter L., DeConto R. M., Huybers P., McKay R. M., Pollard D., Ross J., Winter D. M., Barrett P. J., Browne G., … Williams T. (2009). (Table S1) Chronostratigraphic constrains for sediment core AND1-1B, supplement to: Naish, Tim R; Powell, Ross; Levy, Richard H; Wilson, Gary S; Scherer, Reed P; Talarico, Franco M; Krissek, Lawrence A; Niessen, Frank; Pompilio, Massimo; Wilson, Terry; Carter, Lionel; DeConto, Robert M; Huybers, Peter; McKay, Robert M; Pollard, David; Ross, J; Winter, Diane M; Barrett, Peter J; Browne, G; Cody, Rosemary; Cowan, Ellen A; Crampton, James; Dunbar, Gavin B; Dunbar, Nelia W; Florindo, Fabio; Gebhardt, Catalina; Graham, I J; Hannah, Mike J; Hansaraj, D; Harwood, David M; Helling, D; Henrys, Stuart A; Hinnov, Linda A; Kuhn, Gerhard; Kyle, Philip R; Läufer, Andreas; Maffioli, P; Magens, Diana; Mandernack, Kevin W; McIntosh, W C; Millan, C; Morin, Roger H; Ohneiser, Christian; Paulsen, Timothy S; Persico, Davide; Raine, J Ian; Reed, J; Riesselman, Christina R; Sagnotti, Leonardo; Schmitt, Douglas R; Sjunneskog, Charlotte; Strong, P; Taviani, Marco; Vogel, Stefan; Wilch, T; Williams, Trevor (2009): Obliquity-paced Pliocene West Antarctic ice sheet oscillations. Nature, 458(7236), 322-329 [Data set]. PANGAEA - Data Publisher for Earth & Environmental Science. https://doi.org/10.1594/pangaea.769658

Nome campo Valore
Identificativo del dataset (DOI) 10.1594/pangaea.769658
Altro identificativo Codice: ingv_562
Gestore del codice: INGV
Temi del dataset Scienza e tecnologia
Editore del Dataset PANGAEA - Data Publisher for Earth & Environmental Science
Data di rilascio 01-01-2009
Data di modifica 07-10-2021
Copertura Geografica Area di competenza dell'unità organizzativa preposta
URI di GeoNames Non disponibile
Lingue del dataset italiano
Estensione temporale Non disponibile
Titolari Victoria University of Wellington
ROR 0040r6f76
Northern Illinois University (NIU)
ROR 012wxa772
GNS Science
ROR 03vaqfv64
University of Otago
ROR 01jmxt844
University of Siena (UniSI)
ROR 01tevnk56
IPA UNISIENA
Ohio State University (OSU)
ROR 00rs6vg23
Alfred Wegener Institute for Polar and Marine Research (AWI)
ROR 032e6b942
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
ROR 00qps9a02
IPA ingv
University of Massachusetts (UMASS)
ROR 0260j1g46
Harvard University
ROR 03vek6s52
Pennsylvania State University (PSU)
ROR 04p491231
New Mexico Institute of Mining & Technology (NMT)
ROR 005p9kw61
University of Nebraska-Lincoln (UNL)
ROR 043mer456
Appalachian State University (ASU)
ROR 051m4vc48
Johns Hopkins University (JHU)
ROR 00za53h95
Federal Institute for Geosciences and Natural Resources (BGR)
ROR 04d77de73
University of Milano-Bicocca (UniMIB)
ROR 01ynf4891
Colorado School of Mines (CSM)
ROR 04raf6v53
US Geological Survey (USGS)
ROR 035a68863
University of Wisconsin-Oshkosh (UWO)
ROR 05w22af52
University of Parma (UniPR)
ROR 02k7wn190
Iowa State University
ROR 04rswrd78
Stanford University
ROR 00f54p054
University of Alberta
ROR 0160cpw27
Louisiana State University (LSU)
ROR 05ect4e57
Istituto di scienze marine (CNR-ISMAR)
Albion College
ROR 05nnk3913
Columbia University
ROR 00hj8s172
Frequenza di aggiornamento mai
Versione di Non disponibile
Spatial extent {"type": "MultiPoint","coordinates": [[167.089,-77.8894]]}
Autori NAISH Tim R
Victoria University of Wellington, New Zealand
POWELL Ross
Northern Illinois University (NIU), United States of America
LEVY Richard H
GNS Science, New Zealand
WILSON Gary S
University of Otago, New Zealand
SCHERER Reed P
Northern Illinois University (NIU), United States of America
TALARICO Franco M
University of Siena (UniSI), Italy
KRISSEK Lawrence A
Ohio State University (OSU), United States of America
NIESSEN Frank
Alfred Wegener Institute for Polar and Marine Research (AWI), Germany
POMPILIO Massimo Nicola
Istituto Nazionale di Geofisica e Vulcanologia (INGV), Italy
WILSON Terry
Ohio State University (OSU), United States of America
CARTER Lionel
Victoria University of Wellington, New Zealand
DECONTO Robert M
University of Massachusetts (UMASS), United States of America
HUYBERS Peter
Harvard University, United States of America
MCKAY Robert M
Victoria University of Wellington, New Zealand
POLLARD David
Pennsylvania State University (PSU), United States of America
ROSS J
New Mexico Institute of Mining & Technology (NMT), United States of America
WINTER Diane M
University of Nebraska-Lincoln (UNL), United States of America
BARRETT Peter J
Victoria University of Wellington, New Zealand
BROWNE G
GNS Science, New Zealand
CODY Rosemary
Victoria University of Wellington, New Zealand
COWAN Ellen A
Appalachian State University (ASU), United States of America
CRAMPTON James
GNS Science, New Zealand
DUNBAR Gavin B
Victoria University of Wellington, New Zealand
DUNBAR Nelia W
New Mexico Institute of Mining & Technology (NMT), United States of America
FLORINDO Fabio
Istituto Nazionale di Geofisica e Vulcanologia (INGV), Italy
GEBHARDT Catalina
Alfred Wegener Institute for Polar and Marine Research (AWI), Germany
GRAHAM I J
GNS Science, New Zealand
HANNAH Mike J
Victoria University of Wellington, New Zealand
HANSARAJ D
Victoria University of Wellington, New Zealand
HARWOOD David M
University of Nebraska-Lincoln (UNL), United States of America
HELLING D
Alfred Wegener Institute for Polar and Marine Research (AWI), Germany
HENRYS Stuart A
GNS Science, New Zealand
HINNOV Linda A
Johns Hopkins University (JHU), United States of America
KUHN Gerhard
Alfred Wegener Institute for Polar and Marine Research (AWI), Germany
KYLE Philip R
New Mexico Institute of Mining & Technology (NMT), United States of America
LäUFER Andreas
Federal Institute for Geosciences and Natural Resources (BGR), Germany
MAFFIOLI P
University of Milano-Bicocca (UniMIB), Italy
MAGENS Diana
Alfred Wegener Institute for Polar and Marine Research (AWI), Germany
MANDERNACK Kevin W
Colorado School of Mines (CSM), United States of America
MCINTOSH W C
New Mexico Institute of Mining & Technology (NMT), United States of America
MILLAN C
Ohio State University (OSU), United States of America
MORIN Roger H
US Geological Survey (USGS), United States of America
OHNEISER Christian
University of Otago, New Zealand
PAULSEN Timothy S
University of Wisconsin-Oshkosh (UWO), United States of America
PERSICO Davide
University of Parma (UniPR), Italy
RAINE James Ian
GNS Science, New Zealand
REED J
University of Nebraska-Lincoln (UNL), United States of America
Iowa State University, United States of America
RIESSELMAN Christina R
Stanford University, United States of America
SAGNOTTI Leonardo
Istituto Nazionale di Geofisica e Vulcanologia (INGV), Italy
SCHMITT Douglas R
University of Alberta, Canada
SJUNNESKOG Charlotte
Louisiana State University (LSU), United States of America
STRONG P
GNS Science, New Zealand
TAVIANI Marco
Consiglio Nazionale delle Ricerche (CNR), Italy
VOGEL Stefan
Northern Illinois University (NIU), United States of America
WILCH T
Albion College, United States of America
WILLIAMS Trevor
Columbia University, United States of America

Progetti finanziatori

  • ANDRILL - ANtarctic DRILLing - Rapporti Temporali tra Attività Vulcanica e Sedimentazione nell'Area McMurdo Sound - Ross Ice Shelf : Implicazioni Tettoniche e Paleoclimatiche
    Consorzio per l'attuazione del Programma Nazionale di Ricerche in Antartide (PNRA)
    [ 2006-10-01 ⇒ 2009-12-31 ]