Coniacian-Campanian magnetostratigraphy of the Marambio Group: The Santonian-Campanian boundary in the Antarctic Peninsula and the complete Upper Cretaceous – Lowermost Paleogene chronostratigraphical framework for the James Ross Basin
Recent magnetostratigraphic works from different areas of the James Ross Basin have expanded on chronostratigraphic studies previously based on ammonite, palynomorph and nanoplankton biostratigraphy, and strontium isotope stratigraphy. Here we present a new magnetostratigraphy of Coniacian through C...
Published in: | Palaeogeography, Palaeoclimatology, Palaeoecology |
---|---|
Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Elsevier
2020
|
Subjects: | |
Online Access: | https://authors.library.caltech.edu/103948/ https://authors.library.caltech.edu/103948/1/1-s2.0-S0031018220303163-main.pdf https://authors.library.caltech.edu/103948/2/1-s2.0-S0031018220303163-mmc1.docx https://resolver.caltech.edu/CaltechAUTHORS:20200622-104132180 |
id |
ftcaltechauth:oai:authors.library.caltech.edu:103948 |
---|---|
record_format |
openpolar |
spelling |
ftcaltechauth:oai:authors.library.caltech.edu:103948 2023-05-15T13:38:16+02:00 Coniacian-Campanian magnetostratigraphy of the Marambio Group: The Santonian-Campanian boundary in the Antarctic Peninsula and the complete Upper Cretaceous – Lowermost Paleogene chronostratigraphical framework for the James Ross Basin Milanese, Florencia N. Olivero, Eduardo B. Slotznick, Sarah P. Tobin, Thomas S. Raffi, María E. Skinner, Steven M. Kirschvink, Joseph L. Rapalini, Augusto E. 2020-10-01 application/pdf application/msword https://authors.library.caltech.edu/103948/ https://authors.library.caltech.edu/103948/1/1-s2.0-S0031018220303163-main.pdf https://authors.library.caltech.edu/103948/2/1-s2.0-S0031018220303163-mmc1.docx https://resolver.caltech.edu/CaltechAUTHORS:20200622-104132180 en eng Elsevier https://authors.library.caltech.edu/103948/1/1-s2.0-S0031018220303163-main.pdf https://authors.library.caltech.edu/103948/2/1-s2.0-S0031018220303163-mmc1.docx Milanese, Florencia N. and Olivero, Eduardo B. and Slotznick, Sarah P. and Tobin, Thomas S. and Raffi, María E. and Skinner, Steven M. and Kirschvink, Joseph L. and Rapalini, Augusto E. (2020) Coniacian-Campanian magnetostratigraphy of the Marambio Group: The Santonian-Campanian boundary in the Antarctic Peninsula and the complete Upper Cretaceous – Lowermost Paleogene chronostratigraphical framework for the James Ross Basin. Palaeogeography, Palaeoclimatology, Palaeoecology, 555 . Art. No. 109871. ISSN 0031-0182. doi:10.1016/j.palaeo.2020.109871. https://resolver.caltech.edu/CaltechAUTHORS:20200622-104132180 <https://resolver.caltech.edu/CaltechAUTHORS:20200622-104132180> other Article PeerReviewed 2020 ftcaltechauth https://doi.org/10.1016/j.palaeo.2020.109871 2021-11-18T18:57:36Z Recent magnetostratigraphic works from different areas of the James Ross Basin have expanded on chronostratigraphic studies previously based on ammonite, palynomorph and nanoplankton biostratigraphy, and strontium isotope stratigraphy. Here we present a new magnetostratigraphy of Coniacian through Campanian marine sedimentary rocks from Hidden Lake, Santa Marta and Snow Hill Island Formations, on northwest James Ross Island. A total of 189 paleomagnetic directions were obtained along more than 1500 m of stratigraphic thickness from Brandy Bay to Santa Marta Cove areas, identifying three polarity chrons of the global polarity time scale. The local magnetostratigraphic column starts in the upper part of the Cretaceous Normal Superchron C34N (Coniacian) and ends in Chron C33N (middle Campanian). The correlation between the magnetostratigraphy and the age framework given by ammonite biostratigraphy allowed the assignment of precise ages to particular horizons of the Santa Marta Formation. The newly identified geomagnetic polarity reversals are the earliest identified in the James Ross Basin and include: a) C34N/C33R (84.2 Ma, late Santonian – early Campanian) in the Alpha Member of the Santa Marta Formation and b) C33R/C33N (79.9 Ma, middle Campanian) in the upper Beta Member (Santa Marta Formation). By integrating this new data with previous work, we present a complete Upper Cretaceous – lowermost Paleogene chronostratigraphical framework for the basin, spanning both proximal to distal sedimentary facies of the Marambio Group. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula James Ross Island Ross Island Snow Hill Island Caltech Authors (California Institute of Technology) Antarctic Antarctic Peninsula Brandy Bay ENVELOPE(-58.000,-58.000,-63.700,-63.700) Hidden Lake ENVELOPE(63.048,63.048,-67.687,-67.687) Hill Island ENVELOPE(76.070,76.070,-69.395,-69.395) Marambio ENVELOPE(-56.750,-56.750,-64.283,-64.283) Ross Island Snow Hill ENVELOPE(-57.183,-57.183,-64.466,-64.466) Snow Hill Island ENVELOPE(-57.183,-57.183,-64.466,-64.466) The Antarctic Palaeogeography, Palaeoclimatology, Palaeoecology 555 109871 |
institution |
Open Polar |
collection |
Caltech Authors (California Institute of Technology) |
op_collection_id |
ftcaltechauth |
language |
English |
description |
Recent magnetostratigraphic works from different areas of the James Ross Basin have expanded on chronostratigraphic studies previously based on ammonite, palynomorph and nanoplankton biostratigraphy, and strontium isotope stratigraphy. Here we present a new magnetostratigraphy of Coniacian through Campanian marine sedimentary rocks from Hidden Lake, Santa Marta and Snow Hill Island Formations, on northwest James Ross Island. A total of 189 paleomagnetic directions were obtained along more than 1500 m of stratigraphic thickness from Brandy Bay to Santa Marta Cove areas, identifying three polarity chrons of the global polarity time scale. The local magnetostratigraphic column starts in the upper part of the Cretaceous Normal Superchron C34N (Coniacian) and ends in Chron C33N (middle Campanian). The correlation between the magnetostratigraphy and the age framework given by ammonite biostratigraphy allowed the assignment of precise ages to particular horizons of the Santa Marta Formation. The newly identified geomagnetic polarity reversals are the earliest identified in the James Ross Basin and include: a) C34N/C33R (84.2 Ma, late Santonian – early Campanian) in the Alpha Member of the Santa Marta Formation and b) C33R/C33N (79.9 Ma, middle Campanian) in the upper Beta Member (Santa Marta Formation). By integrating this new data with previous work, we present a complete Upper Cretaceous – lowermost Paleogene chronostratigraphical framework for the basin, spanning both proximal to distal sedimentary facies of the Marambio Group. |
format |
Article in Journal/Newspaper |
author |
Milanese, Florencia N. Olivero, Eduardo B. Slotznick, Sarah P. Tobin, Thomas S. Raffi, María E. Skinner, Steven M. Kirschvink, Joseph L. Rapalini, Augusto E. |
spellingShingle |
Milanese, Florencia N. Olivero, Eduardo B. Slotznick, Sarah P. Tobin, Thomas S. Raffi, María E. Skinner, Steven M. Kirschvink, Joseph L. Rapalini, Augusto E. Coniacian-Campanian magnetostratigraphy of the Marambio Group: The Santonian-Campanian boundary in the Antarctic Peninsula and the complete Upper Cretaceous – Lowermost Paleogene chronostratigraphical framework for the James Ross Basin |
author_facet |
Milanese, Florencia N. Olivero, Eduardo B. Slotznick, Sarah P. Tobin, Thomas S. Raffi, María E. Skinner, Steven M. Kirschvink, Joseph L. Rapalini, Augusto E. |
author_sort |
Milanese, Florencia N. |
title |
Coniacian-Campanian magnetostratigraphy of the Marambio Group: The Santonian-Campanian boundary in the Antarctic Peninsula and the complete Upper Cretaceous – Lowermost Paleogene chronostratigraphical framework for the James Ross Basin |
title_short |
Coniacian-Campanian magnetostratigraphy of the Marambio Group: The Santonian-Campanian boundary in the Antarctic Peninsula and the complete Upper Cretaceous – Lowermost Paleogene chronostratigraphical framework for the James Ross Basin |
title_full |
Coniacian-Campanian magnetostratigraphy of the Marambio Group: The Santonian-Campanian boundary in the Antarctic Peninsula and the complete Upper Cretaceous – Lowermost Paleogene chronostratigraphical framework for the James Ross Basin |
title_fullStr |
Coniacian-Campanian magnetostratigraphy of the Marambio Group: The Santonian-Campanian boundary in the Antarctic Peninsula and the complete Upper Cretaceous – Lowermost Paleogene chronostratigraphical framework for the James Ross Basin |
title_full_unstemmed |
Coniacian-Campanian magnetostratigraphy of the Marambio Group: The Santonian-Campanian boundary in the Antarctic Peninsula and the complete Upper Cretaceous – Lowermost Paleogene chronostratigraphical framework for the James Ross Basin |
title_sort |
coniacian-campanian magnetostratigraphy of the marambio group: the santonian-campanian boundary in the antarctic peninsula and the complete upper cretaceous – lowermost paleogene chronostratigraphical framework for the james ross basin |
publisher |
Elsevier |
publishDate |
2020 |
url |
https://authors.library.caltech.edu/103948/ https://authors.library.caltech.edu/103948/1/1-s2.0-S0031018220303163-main.pdf https://authors.library.caltech.edu/103948/2/1-s2.0-S0031018220303163-mmc1.docx https://resolver.caltech.edu/CaltechAUTHORS:20200622-104132180 |
long_lat |
ENVELOPE(-58.000,-58.000,-63.700,-63.700) ENVELOPE(63.048,63.048,-67.687,-67.687) ENVELOPE(76.070,76.070,-69.395,-69.395) ENVELOPE(-56.750,-56.750,-64.283,-64.283) ENVELOPE(-57.183,-57.183,-64.466,-64.466) ENVELOPE(-57.183,-57.183,-64.466,-64.466) |
geographic |
Antarctic Antarctic Peninsula Brandy Bay Hidden Lake Hill Island Marambio Ross Island Snow Hill Snow Hill Island The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Brandy Bay Hidden Lake Hill Island Marambio Ross Island Snow Hill Snow Hill Island The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula James Ross Island Ross Island Snow Hill Island |
genre_facet |
Antarc* Antarctic Antarctic Peninsula James Ross Island Ross Island Snow Hill Island |
op_relation |
https://authors.library.caltech.edu/103948/1/1-s2.0-S0031018220303163-main.pdf https://authors.library.caltech.edu/103948/2/1-s2.0-S0031018220303163-mmc1.docx Milanese, Florencia N. and Olivero, Eduardo B. and Slotznick, Sarah P. and Tobin, Thomas S. and Raffi, María E. and Skinner, Steven M. and Kirschvink, Joseph L. and Rapalini, Augusto E. (2020) Coniacian-Campanian magnetostratigraphy of the Marambio Group: The Santonian-Campanian boundary in the Antarctic Peninsula and the complete Upper Cretaceous – Lowermost Paleogene chronostratigraphical framework for the James Ross Basin. Palaeogeography, Palaeoclimatology, Palaeoecology, 555 . Art. No. 109871. ISSN 0031-0182. doi:10.1016/j.palaeo.2020.109871. https://resolver.caltech.edu/CaltechAUTHORS:20200622-104132180 <https://resolver.caltech.edu/CaltechAUTHORS:20200622-104132180> |
op_rights |
other |
op_doi |
https://doi.org/10.1016/j.palaeo.2020.109871 |
container_title |
Palaeogeography, Palaeoclimatology, Palaeoecology |
container_volume |
555 |
container_start_page |
109871 |
_version_ |
1766103293679894528 |