Neogene tectonic and climatic evolution of the Western Ross Sea, Antarctica - Chronology of events from the AND-1B drill hole
Stratigraphic drilling from the McMurdo Ice Shelf in the 2006/2007 austral summer recovered a 1284.87 m sedimentary succession from beneath the sea floor. Key age data for the core include magnetic polarity stratigraphy for the entire succession, diatom biostratigraphy for the upper 600 m and Ar-40/...
Published in: | Global and Planetary Change |
---|---|
Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2012
|
Subjects: | |
Online Access: | http://hdl.handle.net/11365/32508 https://doi.org/10.1016/j.gloplacha.2012.05.019 |
id |
ftunivsiena:oai:usiena-air.unisi.it:11365/32508 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
Università degli Studi di Siena: USiena air |
op_collection_id |
ftunivsiena |
language |
English |
topic |
Stratigraphic Drilling McMurdo Ice Shelf Chronostratigraphy Neogene Tectonic Ice Sheet history |
spellingShingle |
Stratigraphic Drilling McMurdo Ice Shelf Chronostratigraphy Neogene Tectonic Ice Sheet history Wilson G. S. Levy R. H. Naish T. R. Powell R. D. Florindo F. Ohneiser C. Sagnotti L. Winter D. M. Cody R. Henrys S. Ross J. Krissek L. Niessen F. Pompillio M. Scherer R. Alloway B. V. Barrett P. J. Brachfeld S. Brown G. Carter L. Cowan E. Crampton J. DeConto R. M. Dunbar G. Dunbar N. Dunbar R. von Eynatten H. Gebhardt C. Giorgetti G. Graham I. Hannah M. Hansaraj D. Harwood D. M. Hinnov L. Jarrard R. D. Joseph L. Kominz M. Kuhn G. Kyle P. Läufer A. McIntosh W. C. McKay R. Maffioli P. Magens D. Millan C. Monien D. Morin R. Paulsen T. Persico D. Pollard D. Raine J. I. Riesselman C. SANDRONI, SONIA Schmitt D. Sjunneskog C. Strong C. P. TALARICO, FRANCO MARIA Taviani M. Villa G. Vogel S. Wilch T. Williams T. Wilson T. J. Wise S. Neogene tectonic and climatic evolution of the Western Ross Sea, Antarctica - Chronology of events from the AND-1B drill hole |
topic_facet |
Stratigraphic Drilling McMurdo Ice Shelf Chronostratigraphy Neogene Tectonic Ice Sheet history |
description |
Stratigraphic drilling from the McMurdo Ice Shelf in the 2006/2007 austral summer recovered a 1284.87 m sedimentary succession from beneath the sea floor. Key age data for the core include magnetic polarity stratigraphy for the entire succession, diatom biostratigraphy for the upper 600 m and Ar-40/Ar-39 ages for in-situ volcanic deposits as well as reworked volcanic clasts. A vertical seismic profile for the drill hole allows correlation between the drill hole and a regional seismic network and inference of age constraint by correlation with well-dated regional volcanic events through direct recognition of interlayered volcanic deposits as well as by inference from flexural loading of pre-existing strata. The combined age model implies relatively rapid (1 m/2-5 ky) accumulation of sediment punctuated by hiatuses, which account for approximately 50% of the record. Three of the longer hiatuses coincide with basin-wide seismic reflectors and, along with two thick volcanic intervals, they subdivide the succession into seven chronostratigraphic intervals with characteristic facies: 1. The base of the cored succession (1275-1220 mbsf) comprises middle Miocene volcaniclastic sandstone dated at approx 13.5 Ma by several reworked volcanic clasts; 2. A late-Miocene sub-polar orbitally controlled glacial-interglacial succession (1220-760 mbsf) bounded by two unconformities correlated with basin-wide reflectors associated with early development of the terror rift; 3. A late Miocene volcanigenic succession (760-596 mbsf) terminating with a similar to 1 my hiatus at 596.35 mbsf which spans the Miocene-Pliocene boundary and is not recognised in regional seismic data; 4. An early Pliocene obliquity-controlled alternating diamictite and diatomite glacial-interglacial succession (590-440 mbsf), separated from; 5. A late Pliocene obliquity-controlled alternating diamictite and diatomite glacial-interglacial succession (440-150 mbsf) by a 750 Icy unconformity interpreted to represent a major sequence boundary at other locations; ... |
author2 |
Wilson, G. S. Levy, R. H. Naish, T. R. Powell, R. D. Florindo, F. Ohneiser, C. Sagnotti, L. Winter, D. M. Cody, R. Henrys, S. Ross, J. Krissek, L. Niessen, F. Pompillio, M. Scherer, R. Alloway, B. V. Barrett, P. J. Brachfeld, S. Brown, G. Carter, L. Cowan, E. Crampton, J. Deconto, R. M. Dunbar, G. Dunbar, N. Dunbar, R. von Eynatten, H. Gebhardt, C. Giorgetti, G. Graham, I. Hannah, M. Hansaraj, D. Harwood, D. M. Hinnov, L. Jarrard, R. D. Joseph, L. Kominz, M. Kuhn, G. Kyle, P. Läufer, A. Mcintosh, W. C. Mckay, R. Maffioli, P. Magens, D. Millan, C. Monien, D. Morin, R. Paulsen, T. Persico, D. Pollard, D. |
format |
Article in Journal/Newspaper |
author |
Wilson G. S. Levy R. H. Naish T. R. Powell R. D. Florindo F. Ohneiser C. Sagnotti L. Winter D. M. Cody R. Henrys S. Ross J. Krissek L. Niessen F. Pompillio M. Scherer R. Alloway B. V. Barrett P. J. Brachfeld S. Brown G. Carter L. Cowan E. Crampton J. DeConto R. M. Dunbar G. Dunbar N. Dunbar R. von Eynatten H. Gebhardt C. Giorgetti G. Graham I. Hannah M. Hansaraj D. Harwood D. M. Hinnov L. Jarrard R. D. Joseph L. Kominz M. Kuhn G. Kyle P. Läufer A. McIntosh W. C. McKay R. Maffioli P. Magens D. Millan C. Monien D. Morin R. Paulsen T. Persico D. Pollard D. Raine J. I. Riesselman C. SANDRONI, SONIA Schmitt D. Sjunneskog C. Strong C. P. TALARICO, FRANCO MARIA Taviani M. Villa G. Vogel S. Wilch T. Williams T. Wilson T. J. Wise S. |
author_facet |
Wilson G. S. Levy R. H. Naish T. R. Powell R. D. Florindo F. Ohneiser C. Sagnotti L. Winter D. M. Cody R. Henrys S. Ross J. Krissek L. Niessen F. Pompillio M. Scherer R. Alloway B. V. Barrett P. J. Brachfeld S. Brown G. Carter L. Cowan E. Crampton J. DeConto R. M. Dunbar G. Dunbar N. Dunbar R. von Eynatten H. Gebhardt C. Giorgetti G. Graham I. Hannah M. Hansaraj D. Harwood D. M. Hinnov L. Jarrard R. D. Joseph L. Kominz M. Kuhn G. Kyle P. Läufer A. McIntosh W. C. McKay R. Maffioli P. Magens D. Millan C. Monien D. Morin R. Paulsen T. Persico D. Pollard D. Raine J. I. Riesselman C. SANDRONI, SONIA Schmitt D. Sjunneskog C. Strong C. P. TALARICO, FRANCO MARIA Taviani M. Villa G. Vogel S. Wilch T. Williams T. Wilson T. J. Wise S. |
author_sort |
Wilson G. S. |
title |
Neogene tectonic and climatic evolution of the Western Ross Sea, Antarctica - Chronology of events from the AND-1B drill hole |
title_short |
Neogene tectonic and climatic evolution of the Western Ross Sea, Antarctica - Chronology of events from the AND-1B drill hole |
title_full |
Neogene tectonic and climatic evolution of the Western Ross Sea, Antarctica - Chronology of events from the AND-1B drill hole |
title_fullStr |
Neogene tectonic and climatic evolution of the Western Ross Sea, Antarctica - Chronology of events from the AND-1B drill hole |
title_full_unstemmed |
Neogene tectonic and climatic evolution of the Western Ross Sea, Antarctica - Chronology of events from the AND-1B drill hole |
title_sort |
neogene tectonic and climatic evolution of the western ross sea, antarctica - chronology of events from the and-1b drill hole |
publishDate |
2012 |
url |
http://hdl.handle.net/11365/32508 https://doi.org/10.1016/j.gloplacha.2012.05.019 |
long_lat |
ENVELOPE(166.500,166.500,-78.000,-78.000) |
geographic |
Austral McMurdo Ice Shelf Ross Sea |
geographic_facet |
Austral McMurdo Ice Shelf Ross Sea |
genre |
Antarc* Antarctica Ice Sheet Ice Shelf McMurdo Ice Shelf Ross Sea |
genre_facet |
Antarc* Antarctica Ice Sheet Ice Shelf McMurdo Ice Shelf Ross Sea |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000309896800015 volume:96-97 firstpage:189 lastpage:203 numberofpages:15 journal:GLOBAL AND PLANETARY CHANGE http://hdl.handle.net/11365/32508 doi:10.1016/j.gloplacha.2012.05.019 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84866388995 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/j.gloplacha.2012.05.019 |
container_title |
Global and Planetary Change |
container_volume |
96-97 |
container_start_page |
189 |
op_container_end_page |
203 |
_version_ |
1796310092223610880 |
spelling |
ftunivsiena:oai:usiena-air.unisi.it:11365/32508 2024-04-14T08:01:39+00:00 Neogene tectonic and climatic evolution of the Western Ross Sea, Antarctica - Chronology of events from the AND-1B drill hole Wilson G. S. Levy R. H. Naish T. R. Powell R. D. Florindo F. Ohneiser C. Sagnotti L. Winter D. M. Cody R. Henrys S. Ross J. Krissek L. Niessen F. Pompillio M. Scherer R. Alloway B. V. Barrett P. J. Brachfeld S. Brown G. Carter L. Cowan E. Crampton J. DeConto R. M. Dunbar G. Dunbar N. Dunbar R. von Eynatten H. Gebhardt C. Giorgetti G. Graham I. Hannah M. Hansaraj D. Harwood D. M. Hinnov L. Jarrard R. D. Joseph L. Kominz M. Kuhn G. Kyle P. Läufer A. McIntosh W. C. McKay R. Maffioli P. Magens D. Millan C. Monien D. Morin R. Paulsen T. Persico D. Pollard D. Raine J. I. Riesselman C. SANDRONI, SONIA Schmitt D. Sjunneskog C. Strong C. P. TALARICO, FRANCO MARIA Taviani M. Villa G. Vogel S. Wilch T. Williams T. Wilson T. J. Wise S. Wilson, G. S. Levy, R. H. Naish, T. R. Powell, R. D. Florindo, F. Ohneiser, C. Sagnotti, L. Winter, D. M. Cody, R. Henrys, S. Ross, J. Krissek, L. Niessen, F. Pompillio, M. Scherer, R. Alloway, B. V. Barrett, P. J. Brachfeld, S. Brown, G. Carter, L. Cowan, E. Crampton, J. Deconto, R. M. Dunbar, G. Dunbar, N. Dunbar, R. von Eynatten, H. Gebhardt, C. Giorgetti, G. Graham, I. Hannah, M. Hansaraj, D. Harwood, D. M. Hinnov, L. Jarrard, R. D. Joseph, L. Kominz, M. Kuhn, G. Kyle, P. Läufer, A. Mcintosh, W. C. Mckay, R. Maffioli, P. Magens, D. Millan, C. Monien, D. Morin, R. Paulsen, T. Persico, D. Pollard, D. 2012 STAMPA http://hdl.handle.net/11365/32508 https://doi.org/10.1016/j.gloplacha.2012.05.019 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000309896800015 volume:96-97 firstpage:189 lastpage:203 numberofpages:15 journal:GLOBAL AND PLANETARY CHANGE http://hdl.handle.net/11365/32508 doi:10.1016/j.gloplacha.2012.05.019 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84866388995 info:eu-repo/semantics/closedAccess Stratigraphic Drilling McMurdo Ice Shelf Chronostratigraphy Neogene Tectonic Ice Sheet history info:eu-repo/semantics/article 2012 ftunivsiena https://doi.org/10.1016/j.gloplacha.2012.05.019 2024-03-21T16:02:34Z Stratigraphic drilling from the McMurdo Ice Shelf in the 2006/2007 austral summer recovered a 1284.87 m sedimentary succession from beneath the sea floor. Key age data for the core include magnetic polarity stratigraphy for the entire succession, diatom biostratigraphy for the upper 600 m and Ar-40/Ar-39 ages for in-situ volcanic deposits as well as reworked volcanic clasts. A vertical seismic profile for the drill hole allows correlation between the drill hole and a regional seismic network and inference of age constraint by correlation with well-dated regional volcanic events through direct recognition of interlayered volcanic deposits as well as by inference from flexural loading of pre-existing strata. The combined age model implies relatively rapid (1 m/2-5 ky) accumulation of sediment punctuated by hiatuses, which account for approximately 50% of the record. Three of the longer hiatuses coincide with basin-wide seismic reflectors and, along with two thick volcanic intervals, they subdivide the succession into seven chronostratigraphic intervals with characteristic facies: 1. The base of the cored succession (1275-1220 mbsf) comprises middle Miocene volcaniclastic sandstone dated at approx 13.5 Ma by several reworked volcanic clasts; 2. A late-Miocene sub-polar orbitally controlled glacial-interglacial succession (1220-760 mbsf) bounded by two unconformities correlated with basin-wide reflectors associated with early development of the terror rift; 3. A late Miocene volcanigenic succession (760-596 mbsf) terminating with a similar to 1 my hiatus at 596.35 mbsf which spans the Miocene-Pliocene boundary and is not recognised in regional seismic data; 4. An early Pliocene obliquity-controlled alternating diamictite and diatomite glacial-interglacial succession (590-440 mbsf), separated from; 5. A late Pliocene obliquity-controlled alternating diamictite and diatomite glacial-interglacial succession (440-150 mbsf) by a 750 Icy unconformity interpreted to represent a major sequence boundary at other locations; ... Article in Journal/Newspaper Antarc* Antarctica Ice Sheet Ice Shelf McMurdo Ice Shelf Ross Sea Università degli Studi di Siena: USiena air Austral McMurdo Ice Shelf ENVELOPE(166.500,166.500,-78.000,-78.000) Ross Sea Global and Planetary Change 96-97 189 203 |