Polar marine diatoms: key markers for Cenozoic environmental shifts. Sedimentary and paleo-environmental reports from Antarctic continental margin (Ross Sea, Wilkes Land and Prydz Bay)
Marine diatoms are sensitive to water-mass distribution and their physical-chemical and biotic preferences affect their biogeographical distribution. In sedimentary records, although altered by secondary processes such as dissolution, they track the primary signal formed in surface water. This make...
Published in: | Rendiconti Online della Società Geologica Italiana |
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Società Geologica Italiana
2014
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Online Access: | http://hdl.handle.net/11567/768811 https://doi.org/10.3301/ROL.2014.140 |
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ftunivgenova:oai:iris.unige.it:11567/768811 2024-02-11T09:56:49+01:00 Polar marine diatoms: key markers for Cenozoic environmental shifts. Sedimentary and paleo-environmental reports from Antarctic continental margin (Ross Sea, Wilkes Land and Prydz Bay) TOLOTTI, RAFFAELLA BONCI, MARIA CRISTINA CORRADI, NICOLA Crosta X. Caburlotto A. Colizza E. De Santis L. Harwood D. Lucchi R. G. Lodolo E. Salvi G. B. Cesare, E. Erba, B. Carmina, L. Fascio, F.M. Petti, A. Zuccari. Tolotti, Raffaella Bonci, MARIA CRISTINA Crosta, X. Caburlotto, A. Colizza, E. Corradi, Nicola De Santis, L. Harwood, D. Lucchi, R. G. Lodolo, E. Salvi, G. 2014 ELETTRONICO http://hdl.handle.net/11567/768811 https://doi.org/10.3301/ROL.2014.140 eng eng Società Geologica Italiana country:ITA place:Roma ispartofbook:The Future of the Italian Geosciences - The Italian Geosciences of the Future CONGRESSO SGI-SIMP 2014 firstpage:77 lastpage:77 numberofpages:1 http://hdl.handle.net/11567/768811 doi:10.3301/ROL.2014.140 Polar marine diatom Cenozoic biostratigraphy paleoceanography info:eu-repo/semantics/conferenceObject 2014 ftunivgenova https://doi.org/10.3301/ROL.2014.140 2024-01-17T17:49:33Z Marine diatoms are sensitive to water-mass distribution and their physical-chemical and biotic preferences affect their biogeographical distribution. In sedimentary records, although altered by secondary processes such as dissolution, they track the primary signal formed in surface water. This make them the major biostratigraphic and environmental markers in the Southern Ocean as they record sea-surface temperatures, sea ice and other parameters usefull for paleoceanographic and paleoclimatic reconstructions (Jordan et al. 2010; Leventer et al., 2010; Crosta, 2011; Escutia et al., 2011). We present three case studies of diatom biostratigrapy and paleoceanographic reconstructions performed on Antarctic sediments recovered from: 1) Pleistocene-Holocene sequences in the Ross Sea and Wilkes Lands, with evidences of glacial/deglacial-interglacial phases (PNRA and IMAGES-CADO Projects in Atlantic and Australian Sectors) (Caburlotto et al., 2010; Tolotti et al., 2013) and 2) Late Eocene-Early Miocene sequences in Prydz Bay, with preliminary micropaleontological results and biostratigraphy related to the greenhouse/ice-house transition (ODP Project in the Indian Sector) (Lagabrielle et al., 2009; Suto et al., 2012). Jordan W.J. & Stikley C.E. 2010. Diatoms as indicators of paleoceanographic events. In: Smol J.P. & Stoermer E.F. Eds., The Diatoms: Applications for the Environmental and Earth Sciences., II Edition., 424-452. Escutia C., Brinkhuis H., Klaus A. & IODP Expedition 318 Scientists. 2011. IODP Expedition 318: From Greenhouse to Icehouse at the Wilkes Land Antarctic Margin. Scientific Drilling, 12, 15-23. Caburlotto A., Lucchi R.G., De Santis L., Macrì P. & Tolotti R. 2010. Sedimentary processes on the Wilkes Land continental rise reflect changes in glacial dynamic and bottom water flow. International Journal of Earth Sciences, 99(4), 909 – 926. Crosta X. 2011. Marine diatoms in polar and sub-polar environments and their application to Late Pleistocene paleoclimate reconstruction. IOP Conf. ... Conference Object Antarc* Antarctic Prydz Bay Ross Sea Sea ice Southern Ocean Wilkes Land Università degli Studi di Genova: CINECA IRIS Antarctic Southern Ocean Ross Sea Prydz Bay Indian Wilkes Land ENVELOPE(120.000,120.000,-69.000,-69.000) Klaus ENVELOPE(24.117,24.117,65.717,65.717) Rendiconti Online della Società Geologica Italiana 31 |
institution |
Open Polar |
collection |
Università degli Studi di Genova: CINECA IRIS |
op_collection_id |
ftunivgenova |
language |
English |
topic |
Polar marine diatom Cenozoic biostratigraphy paleoceanography |
spellingShingle |
Polar marine diatom Cenozoic biostratigraphy paleoceanography TOLOTTI, RAFFAELLA BONCI, MARIA CRISTINA CORRADI, NICOLA Crosta X. Caburlotto A. Colizza E. De Santis L. Harwood D. Lucchi R. G. Lodolo E. Salvi G. Polar marine diatoms: key markers for Cenozoic environmental shifts. Sedimentary and paleo-environmental reports from Antarctic continental margin (Ross Sea, Wilkes Land and Prydz Bay) |
topic_facet |
Polar marine diatom Cenozoic biostratigraphy paleoceanography |
description |
Marine diatoms are sensitive to water-mass distribution and their physical-chemical and biotic preferences affect their biogeographical distribution. In sedimentary records, although altered by secondary processes such as dissolution, they track the primary signal formed in surface water. This make them the major biostratigraphic and environmental markers in the Southern Ocean as they record sea-surface temperatures, sea ice and other parameters usefull for paleoceanographic and paleoclimatic reconstructions (Jordan et al. 2010; Leventer et al., 2010; Crosta, 2011; Escutia et al., 2011). We present three case studies of diatom biostratigrapy and paleoceanographic reconstructions performed on Antarctic sediments recovered from: 1) Pleistocene-Holocene sequences in the Ross Sea and Wilkes Lands, with evidences of glacial/deglacial-interglacial phases (PNRA and IMAGES-CADO Projects in Atlantic and Australian Sectors) (Caburlotto et al., 2010; Tolotti et al., 2013) and 2) Late Eocene-Early Miocene sequences in Prydz Bay, with preliminary micropaleontological results and biostratigraphy related to the greenhouse/ice-house transition (ODP Project in the Indian Sector) (Lagabrielle et al., 2009; Suto et al., 2012). Jordan W.J. & Stikley C.E. 2010. Diatoms as indicators of paleoceanographic events. In: Smol J.P. & Stoermer E.F. Eds., The Diatoms: Applications for the Environmental and Earth Sciences., II Edition., 424-452. Escutia C., Brinkhuis H., Klaus A. & IODP Expedition 318 Scientists. 2011. IODP Expedition 318: From Greenhouse to Icehouse at the Wilkes Land Antarctic Margin. Scientific Drilling, 12, 15-23. Caburlotto A., Lucchi R.G., De Santis L., Macrì P. & Tolotti R. 2010. Sedimentary processes on the Wilkes Land continental rise reflect changes in glacial dynamic and bottom water flow. International Journal of Earth Sciences, 99(4), 909 – 926. Crosta X. 2011. Marine diatoms in polar and sub-polar environments and their application to Late Pleistocene paleoclimate reconstruction. IOP Conf. ... |
author2 |
B. Cesare, E. Erba, B. Carmina, L. Fascio, F.M. Petti, A. Zuccari. Tolotti, Raffaella Bonci, MARIA CRISTINA Crosta, X. Caburlotto, A. Colizza, E. Corradi, Nicola De Santis, L. Harwood, D. Lucchi, R. G. Lodolo, E. Salvi, G. |
format |
Conference Object |
author |
TOLOTTI, RAFFAELLA BONCI, MARIA CRISTINA CORRADI, NICOLA Crosta X. Caburlotto A. Colizza E. De Santis L. Harwood D. Lucchi R. G. Lodolo E. Salvi G. |
author_facet |
TOLOTTI, RAFFAELLA BONCI, MARIA CRISTINA CORRADI, NICOLA Crosta X. Caburlotto A. Colizza E. De Santis L. Harwood D. Lucchi R. G. Lodolo E. Salvi G. |
author_sort |
TOLOTTI, RAFFAELLA |
title |
Polar marine diatoms: key markers for Cenozoic environmental shifts. Sedimentary and paleo-environmental reports from Antarctic continental margin (Ross Sea, Wilkes Land and Prydz Bay) |
title_short |
Polar marine diatoms: key markers for Cenozoic environmental shifts. Sedimentary and paleo-environmental reports from Antarctic continental margin (Ross Sea, Wilkes Land and Prydz Bay) |
title_full |
Polar marine diatoms: key markers for Cenozoic environmental shifts. Sedimentary and paleo-environmental reports from Antarctic continental margin (Ross Sea, Wilkes Land and Prydz Bay) |
title_fullStr |
Polar marine diatoms: key markers for Cenozoic environmental shifts. Sedimentary and paleo-environmental reports from Antarctic continental margin (Ross Sea, Wilkes Land and Prydz Bay) |
title_full_unstemmed |
Polar marine diatoms: key markers for Cenozoic environmental shifts. Sedimentary and paleo-environmental reports from Antarctic continental margin (Ross Sea, Wilkes Land and Prydz Bay) |
title_sort |
polar marine diatoms: key markers for cenozoic environmental shifts. sedimentary and paleo-environmental reports from antarctic continental margin (ross sea, wilkes land and prydz bay) |
publisher |
Società Geologica Italiana |
publishDate |
2014 |
url |
http://hdl.handle.net/11567/768811 https://doi.org/10.3301/ROL.2014.140 |
long_lat |
ENVELOPE(120.000,120.000,-69.000,-69.000) ENVELOPE(24.117,24.117,65.717,65.717) |
geographic |
Antarctic Southern Ocean Ross Sea Prydz Bay Indian Wilkes Land Klaus |
geographic_facet |
Antarctic Southern Ocean Ross Sea Prydz Bay Indian Wilkes Land Klaus |
genre |
Antarc* Antarctic Prydz Bay Ross Sea Sea ice Southern Ocean Wilkes Land |
genre_facet |
Antarc* Antarctic Prydz Bay Ross Sea Sea ice Southern Ocean Wilkes Land |
op_relation |
ispartofbook:The Future of the Italian Geosciences - The Italian Geosciences of the Future CONGRESSO SGI-SIMP 2014 firstpage:77 lastpage:77 numberofpages:1 http://hdl.handle.net/11567/768811 doi:10.3301/ROL.2014.140 |
op_doi |
https://doi.org/10.3301/ROL.2014.140 |
container_title |
Rendiconti Online della Società Geologica Italiana |
container_volume |
31 |
_version_ |
1790606147508502528 |