The Cenozoic diamictitic deposits of the James Ross Basin, Antarctica: A stratigraphic synthesis and new paleontological findings

The Cenozoic glaciar deposits from the James Ross Basin, Antarctica, are here studied. They are stratigraphically characterized, their localities and outcrops are mentioned, and new paleontological discoveries are presented from the Hamilton Cape, southeast James Ross Island. In this region, diamict...

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Autores principales: Concheyro, A., Salani, F.M., Adamonis, S., Lirio, J.M.
Formato: JOUR
Materias:
Antarctica
Cenozoic James Ross Basin
Diamictite
Paleontology
biostratigraphy
diamictite
foraminifera
fossil record
Miocene
ostracod
paleontology
Antarctic Peninsula
James Ross Island
West Antarctica
Balanidae
Brachiopoda
Bryozoa
Cellarinella
Foraminifera
Hornera (bryozoan)
Melicerita
Microporella
Ostracoda
Serpulidae
Zygochlamys
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00044822_v62_n4_p568_Concheyro
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00044822_v62_n4_p568_Concheyro
record_format dspace
spelling todo:paper_00044822_v62_n4_p568_Concheyro2023-10-03T13:58:20Z The Cenozoic diamictitic deposits of the James Ross Basin, Antarctica: A stratigraphic synthesis and new paleontological findings Concheyro, A. Salani, F.M. Adamonis, S. Lirio, J.M. Antarctica Cenozoic James Ross Basin Diamictite Paleontology biostratigraphy diamictite foraminifera fossil record Miocene ostracod paleontology Antarctic Peninsula Antarctica James Ross Island West Antarctica Balanidae Brachiopoda Bryozoa Cellarinella Foraminifera Hornera (bryozoan) Melicerita Microporella Ostracoda Serpulidae Zygochlamys The Cenozoic glaciar deposits from the James Ross Basin, Antarctica, are here studied. They are stratigraphically characterized, their localities and outcrops are mentioned, and new paleontological discoveries are presented from the Hamilton Cape, southeast James Ross Island. In this region, diamictites are fossilliferous in megafauna and microfauna. The megafauna contains Zygochlamys andersonni, brachiopods, balanids, serpulids and a rich bryozoan association, composed of Cellarinella, Hornera, Membranicellaria, Melicerita, Microporella y Polirhabdotos. Some of those genera constitute their first fossil record defined for the Late Miocene of Antarctica. The age is confirmed by foraminifera and ostracods found in the same locality. The microfauna allow establishing normal marine salinity conditions, higher temperatures than the present ones at the same latitude, and cold water influences. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00044822_v62_n4_p568_Concheyro
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Antarctica
Cenozoic James Ross Basin
Diamictite
Paleontology
biostratigraphy
diamictite
foraminifera
fossil record
Miocene
ostracod
paleontology
Antarctic Peninsula
Antarctica
James Ross Island
West Antarctica
Balanidae
Brachiopoda
Bryozoa
Cellarinella
Foraminifera
Hornera (bryozoan)
Melicerita
Microporella
Ostracoda
Serpulidae
Zygochlamys
spellingShingle Antarctica
Cenozoic James Ross Basin
Diamictite
Paleontology
biostratigraphy
diamictite
foraminifera
fossil record
Miocene
ostracod
paleontology
Antarctic Peninsula
Antarctica
James Ross Island
West Antarctica
Balanidae
Brachiopoda
Bryozoa
Cellarinella
Foraminifera
Hornera (bryozoan)
Melicerita
Microporella
Ostracoda
Serpulidae
Zygochlamys
Concheyro, A.
Salani, F.M.
Adamonis, S.
Lirio, J.M.
The Cenozoic diamictitic deposits of the James Ross Basin, Antarctica: A stratigraphic synthesis and new paleontological findings
topic_facet Antarctica
Cenozoic James Ross Basin
Diamictite
Paleontology
biostratigraphy
diamictite
foraminifera
fossil record
Miocene
ostracod
paleontology
Antarctic Peninsula
Antarctica
James Ross Island
West Antarctica
Balanidae
Brachiopoda
Bryozoa
Cellarinella
Foraminifera
Hornera (bryozoan)
Melicerita
Microporella
Ostracoda
Serpulidae
Zygochlamys
description The Cenozoic glaciar deposits from the James Ross Basin, Antarctica, are here studied. They are stratigraphically characterized, their localities and outcrops are mentioned, and new paleontological discoveries are presented from the Hamilton Cape, southeast James Ross Island. In this region, diamictites are fossilliferous in megafauna and microfauna. The megafauna contains Zygochlamys andersonni, brachiopods, balanids, serpulids and a rich bryozoan association, composed of Cellarinella, Hornera, Membranicellaria, Melicerita, Microporella y Polirhabdotos. Some of those genera constitute their first fossil record defined for the Late Miocene of Antarctica. The age is confirmed by foraminifera and ostracods found in the same locality. The microfauna allow establishing normal marine salinity conditions, higher temperatures than the present ones at the same latitude, and cold water influences.
format JOUR
author Concheyro, A.
Salani, F.M.
Adamonis, S.
Lirio, J.M.
author_facet Concheyro, A.
Salani, F.M.
Adamonis, S.
Lirio, J.M.
author_sort Concheyro, A.
title The Cenozoic diamictitic deposits of the James Ross Basin, Antarctica: A stratigraphic synthesis and new paleontological findings
title_short The Cenozoic diamictitic deposits of the James Ross Basin, Antarctica: A stratigraphic synthesis and new paleontological findings
title_full The Cenozoic diamictitic deposits of the James Ross Basin, Antarctica: A stratigraphic synthesis and new paleontological findings
title_fullStr The Cenozoic diamictitic deposits of the James Ross Basin, Antarctica: A stratigraphic synthesis and new paleontological findings
title_full_unstemmed The Cenozoic diamictitic deposits of the James Ross Basin, Antarctica: A stratigraphic synthesis and new paleontological findings
title_sort cenozoic diamictitic deposits of the james ross basin, antarctica: a stratigraphic synthesis and new paleontological findings
url http://hdl.handle.net/20.500.12110/paper_00044822_v62_n4_p568_Concheyro
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