Formal ratification of the GSSP for the base of the Calabrian Stage (second stage of the Pleistocene Series, Quaternary System)
The Calabrian Stage is now formally defined by the Global Boundary Stratotype Section and Point (GSSP) at Vrica, Calabria, Italy. This GSSP had previously defined the base of the Pleistocene Series. The Calabrian becomes the second stage of the Pleistocene Series and Quaternary System, following the...
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ftanucanberra:oai:openresearch-repository.anu.edu.au:1885/52994 2024-01-14T10:08:42+01:00 Formal ratification of the GSSP for the base of the Calabrian Stage (second stage of the Pleistocene Series, Quaternary System) Cita, Maria Bianca Gibbard, Phillip Head, Martin J. Alloway, B. Beu, A. Coltorti, M. Hall, V.M. Jiaqi, Liu Knudsen , K.L. van Kolfschoten, T. Pillans, Bradley http://hdl.handle.net/1885/52994 https://openresearch-repository.anu.edu.au/bitstream/1885/52994/5/Calabrian2.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/52994/7/01_Cita_Formal_ratification_of_the_2012.pdf.jpg unknown International Union of Geological Sciences 0705-3797 http://hdl.handle.net/1885/52994 https://openresearch-repository.anu.edu.au/bitstream/1885/52994/5/Calabrian2.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/52994/7/01_Cita_Formal_ratification_of_the_2012.pdf.jpg Episodes Keywords: biomarker Calabrian claystone lithology marine isotope stage planktonic foraminifera species occurrence stratigraphy Calabria Italy Gephyrocapsa Globigerinoides tennellus Neogloboquadrina pachyderma Journal article ftanucanberra 2023-12-15T09:39:16Z The Calabrian Stage is now formally defined by the Global Boundary Stratotype Section and Point (GSSP) at Vrica, Calabria, Italy. This GSSP had previously defined the base of the Pleistocene Series. The Calabrian becomes the second stage of the Pleistocene Series and Quaternary System, following the Gelasian. The GSSP occurs at the base of the marine clay stone conformably overlying sapropelic bed 'e' within Segment B in the Vrica section. This lithological level represents the primary marker for the recognition of the boundary, and is assigned an astronomical age of 1.80 Ma on the basis of sapropel calibration. It coincides with the transition from Marine Isotope Stage 65 to 64, and the underlying sapropel bed 'e' is assigned to the Mediterranean Precession-Related Sapropel layer 176. Secondary markers include calcareous plankton bioevents of widely distributed taxa. The boundary falls between the highest occurrence o/Discoaster brouweri (below) and the lowest common occurrence of left-coiling Neogloboquadrina pachyderma (above), and below the lowest occurrences of medium-sized Gephyrocapsa (including G oceanica) and Globigerinoides tenellus. The top of the Olduvai Subchron is identified c.8m above the GSSP. Ratification of the Calabrian Stage effectively completes the Lower Pleistocene Subseries. Article in Journal/Newspaper Neogloboquadrina pachyderma Planktonic foraminifera Australian National University: ANU Digital Collections |
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Open Polar |
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Australian National University: ANU Digital Collections |
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ftanucanberra |
language |
unknown |
topic |
Keywords: biomarker Calabrian claystone lithology marine isotope stage planktonic foraminifera species occurrence stratigraphy Calabria Italy Gephyrocapsa Globigerinoides tennellus Neogloboquadrina pachyderma |
spellingShingle |
Keywords: biomarker Calabrian claystone lithology marine isotope stage planktonic foraminifera species occurrence stratigraphy Calabria Italy Gephyrocapsa Globigerinoides tennellus Neogloboquadrina pachyderma Cita, Maria Bianca Gibbard, Phillip Head, Martin J. Alloway, B. Beu, A. Coltorti, M. Hall, V.M. Jiaqi, Liu Knudsen , K.L. van Kolfschoten, T. Pillans, Bradley Formal ratification of the GSSP for the base of the Calabrian Stage (second stage of the Pleistocene Series, Quaternary System) |
topic_facet |
Keywords: biomarker Calabrian claystone lithology marine isotope stage planktonic foraminifera species occurrence stratigraphy Calabria Italy Gephyrocapsa Globigerinoides tennellus Neogloboquadrina pachyderma |
description |
The Calabrian Stage is now formally defined by the Global Boundary Stratotype Section and Point (GSSP) at Vrica, Calabria, Italy. This GSSP had previously defined the base of the Pleistocene Series. The Calabrian becomes the second stage of the Pleistocene Series and Quaternary System, following the Gelasian. The GSSP occurs at the base of the marine clay stone conformably overlying sapropelic bed 'e' within Segment B in the Vrica section. This lithological level represents the primary marker for the recognition of the boundary, and is assigned an astronomical age of 1.80 Ma on the basis of sapropel calibration. It coincides with the transition from Marine Isotope Stage 65 to 64, and the underlying sapropel bed 'e' is assigned to the Mediterranean Precession-Related Sapropel layer 176. Secondary markers include calcareous plankton bioevents of widely distributed taxa. The boundary falls between the highest occurrence o/Discoaster brouweri (below) and the lowest common occurrence of left-coiling Neogloboquadrina pachyderma (above), and below the lowest occurrences of medium-sized Gephyrocapsa (including G oceanica) and Globigerinoides tenellus. The top of the Olduvai Subchron is identified c.8m above the GSSP. Ratification of the Calabrian Stage effectively completes the Lower Pleistocene Subseries. |
format |
Article in Journal/Newspaper |
author |
Cita, Maria Bianca Gibbard, Phillip Head, Martin J. Alloway, B. Beu, A. Coltorti, M. Hall, V.M. Jiaqi, Liu Knudsen , K.L. van Kolfschoten, T. Pillans, Bradley |
author_facet |
Cita, Maria Bianca Gibbard, Phillip Head, Martin J. Alloway, B. Beu, A. Coltorti, M. Hall, V.M. Jiaqi, Liu Knudsen , K.L. van Kolfschoten, T. Pillans, Bradley |
author_sort |
Cita, Maria Bianca |
title |
Formal ratification of the GSSP for the base of the Calabrian Stage (second stage of the Pleistocene Series, Quaternary System) |
title_short |
Formal ratification of the GSSP for the base of the Calabrian Stage (second stage of the Pleistocene Series, Quaternary System) |
title_full |
Formal ratification of the GSSP for the base of the Calabrian Stage (second stage of the Pleistocene Series, Quaternary System) |
title_fullStr |
Formal ratification of the GSSP for the base of the Calabrian Stage (second stage of the Pleistocene Series, Quaternary System) |
title_full_unstemmed |
Formal ratification of the GSSP for the base of the Calabrian Stage (second stage of the Pleistocene Series, Quaternary System) |
title_sort |
formal ratification of the gssp for the base of the calabrian stage (second stage of the pleistocene series, quaternary system) |
publisher |
International Union of Geological Sciences |
url |
http://hdl.handle.net/1885/52994 https://openresearch-repository.anu.edu.au/bitstream/1885/52994/5/Calabrian2.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/52994/7/01_Cita_Formal_ratification_of_the_2012.pdf.jpg |
genre |
Neogloboquadrina pachyderma Planktonic foraminifera |
genre_facet |
Neogloboquadrina pachyderma Planktonic foraminifera |
op_source |
Episodes |
op_relation |
0705-3797 http://hdl.handle.net/1885/52994 https://openresearch-repository.anu.edu.au/bitstream/1885/52994/5/Calabrian2.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/52994/7/01_Cita_Formal_ratification_of_the_2012.pdf.jpg |
_version_ |
1788063111805140992 |