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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ftunibueairesbd:todo:paper_00044822_v62_n4_p568_Concheyro 2023-10-29T02:32:32+01:00 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. https://hdl.handle.net/20.500.12110/paper_00044822_v62_n4_p568_Concheyro unknown http://hdl.handle.net/20.500.12110/paper_00044822_v62_n4_p568_Concheyro info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar Antarctica Cenozoic James Ross Basin Diamictite Paleontology biostratigraphy foraminifera fossil record Miocene ostracod Antarctic Peninsula James Ross Island West Antarctica Balanidae Brachiopoda Bryozoa Cellarinella Hornera (bryozoan) Melicerita Microporella Ostracoda Serpulidae Zygochlamys JOUR ftunibueairesbd https://doi.org/20.500.12110/paper_00044822_v62_n4_p568_Concheyro 2023-10-05T01:16:58Z 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. Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica James Ross Island Ross Island West Antarctica Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires) |
institution |
Open Polar |
collection |
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires) |
op_collection_id |
ftunibueairesbd |
language |
unknown |
topic |
Antarctica Cenozoic James Ross Basin Diamictite Paleontology biostratigraphy foraminifera fossil record Miocene ostracod Antarctic Peninsula James Ross Island West Antarctica Balanidae Brachiopoda Bryozoa Cellarinella Hornera (bryozoan) Melicerita Microporella Ostracoda Serpulidae Zygochlamys |
spellingShingle |
Antarctica Cenozoic James Ross Basin Diamictite Paleontology biostratigraphy foraminifera fossil record Miocene ostracod Antarctic Peninsula James Ross Island West Antarctica Balanidae Brachiopoda Bryozoa Cellarinella 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 foraminifera fossil record Miocene ostracod Antarctic Peninsula James Ross Island West Antarctica Balanidae Brachiopoda Bryozoa Cellarinella 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 |
Journal/Newspaper |
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 |
https://hdl.handle.net/20.500.12110/paper_00044822_v62_n4_p568_Concheyro |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica James Ross Island Ross Island West Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica James Ross Island Ross Island West Antarctica |
op_relation |
http://hdl.handle.net/20.500.12110/paper_00044822_v62_n4_p568_Concheyro |
op_rights |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar |
op_doi |
https://doi.org/20.500.12110/paper_00044822_v62_n4_p568_Concheyro |
_version_ |
1781054146809430016 |