Stable isotope and Mg/Ca ratios of Paleogene benthic foraminifera in the western North Atlantic
Global cooling and the development of continental-scale Antarctic glaciation occurred in the late middle Eocene to early Oligocene (~38 to 28 million years ago), accompanied by deep-ocean reorganization attributed to gradual Antarctic Circumpolar Current (ACC) development. Our benthic foraminiferal...
Main Authors: | , , , , , , , , |
---|---|
Format: | Dataset |
Language: | English |
Published: |
PANGAEA
2011
|
Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.771562 https://doi.org/10.1594/PANGAEA.771562 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.771562 |
---|---|
record_format |
openpolar |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.771562 2024-05-19T07:32:29+00:00 Stable isotope and Mg/Ca ratios of Paleogene benthic foraminifera in the western North Atlantic Katz, Miriam E Cramer, Benjamin S Toggweiler, J Robbie Esmay, Gar Liu, Chengji Miller, Kenneth G Rosenthal, Yair Wade, Bridget S Wright, James D MEDIAN LATITUDE: 31.955418 * MEDIAN LONGITUDE: -76.977574 * SOUTH-BOUND LATITUDE: 29.992270 * WEST-BOUND LONGITUDE: -77.250000 * NORTH-BOUND LATITUDE: 33.133300 * EAST-BOUND LONGITUDE: -76.523520 * DATE/TIME START: 1997-02-06T00:00:00 * DATE/TIME END: 1997-02-06T20:30:00 2011 application/zip, 4 datasets https://doi.pangaea.de/10.1594/PANGAEA.771562 https://doi.org/10.1594/PANGAEA.771562 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.771562 https://doi.org/10.1594/PANGAEA.771562 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Katz, Miriam E; Cramer, Benjamin S; Toggweiler, J Robbie; Esmay, Gar; Liu, Chengji; Miller, Kenneth G; Rosenthal, Yair; Wade, Bridget S; Wright, James D (2011): Impact of Antarctic Circumpolar Current development on late Paleogene ocean structure. Science, 332(6033), 1076-7079, https://doi.org/10.1126/science.1202122 171-1053 171-1053A ASP-5 Carolina Slope North Atlantic Ocean COMPCORE Composite Core DRILL Drilling/drill rig Joides Resolution Leg171B North Atlantic Ocean Drilling Program ODP Dataset 2011 ftpangaea https://doi.org/10.1594/PANGAEA.77156210.1126/science.1202122 2024-04-30T23:34:34Z Global cooling and the development of continental-scale Antarctic glaciation occurred in the late middle Eocene to early Oligocene (~38 to 28 million years ago), accompanied by deep-ocean reorganization attributed to gradual Antarctic Circumpolar Current (ACC) development. Our benthic foraminiferal stable isotope comparisons show that a large d13C offset developed between mid-depth (~600 meters) and deep (>1000 meters) western North Atlantic waters in the early Oligocene, indicating the development of intermediate-depth d13C and O2 minima closely linked in the modern ocean to northward incursion of Antarctic Intermediate Water. At the same time, the ocean's coldest waters became restricted to south of the ACC, probably forming a bottom-ocean layer, as in the modern ocean. We show that the modern four-layer ocean structure (surface, intermediate, deep, and bottom waters) developed during the early Oligocene as a consequence of the ACC. Dataset Antarc* Antarctic North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-77.250000,-76.523520,33.133300,29.992270) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
171-1053 171-1053A ASP-5 Carolina Slope North Atlantic Ocean COMPCORE Composite Core DRILL Drilling/drill rig Joides Resolution Leg171B North Atlantic Ocean Drilling Program ODP |
spellingShingle |
171-1053 171-1053A ASP-5 Carolina Slope North Atlantic Ocean COMPCORE Composite Core DRILL Drilling/drill rig Joides Resolution Leg171B North Atlantic Ocean Drilling Program ODP Katz, Miriam E Cramer, Benjamin S Toggweiler, J Robbie Esmay, Gar Liu, Chengji Miller, Kenneth G Rosenthal, Yair Wade, Bridget S Wright, James D Stable isotope and Mg/Ca ratios of Paleogene benthic foraminifera in the western North Atlantic |
topic_facet |
171-1053 171-1053A ASP-5 Carolina Slope North Atlantic Ocean COMPCORE Composite Core DRILL Drilling/drill rig Joides Resolution Leg171B North Atlantic Ocean Drilling Program ODP |
description |
Global cooling and the development of continental-scale Antarctic glaciation occurred in the late middle Eocene to early Oligocene (~38 to 28 million years ago), accompanied by deep-ocean reorganization attributed to gradual Antarctic Circumpolar Current (ACC) development. Our benthic foraminiferal stable isotope comparisons show that a large d13C offset developed between mid-depth (~600 meters) and deep (>1000 meters) western North Atlantic waters in the early Oligocene, indicating the development of intermediate-depth d13C and O2 minima closely linked in the modern ocean to northward incursion of Antarctic Intermediate Water. At the same time, the ocean's coldest waters became restricted to south of the ACC, probably forming a bottom-ocean layer, as in the modern ocean. We show that the modern four-layer ocean structure (surface, intermediate, deep, and bottom waters) developed during the early Oligocene as a consequence of the ACC. |
format |
Dataset |
author |
Katz, Miriam E Cramer, Benjamin S Toggweiler, J Robbie Esmay, Gar Liu, Chengji Miller, Kenneth G Rosenthal, Yair Wade, Bridget S Wright, James D |
author_facet |
Katz, Miriam E Cramer, Benjamin S Toggweiler, J Robbie Esmay, Gar Liu, Chengji Miller, Kenneth G Rosenthal, Yair Wade, Bridget S Wright, James D |
author_sort |
Katz, Miriam E |
title |
Stable isotope and Mg/Ca ratios of Paleogene benthic foraminifera in the western North Atlantic |
title_short |
Stable isotope and Mg/Ca ratios of Paleogene benthic foraminifera in the western North Atlantic |
title_full |
Stable isotope and Mg/Ca ratios of Paleogene benthic foraminifera in the western North Atlantic |
title_fullStr |
Stable isotope and Mg/Ca ratios of Paleogene benthic foraminifera in the western North Atlantic |
title_full_unstemmed |
Stable isotope and Mg/Ca ratios of Paleogene benthic foraminifera in the western North Atlantic |
title_sort |
stable isotope and mg/ca ratios of paleogene benthic foraminifera in the western north atlantic |
publisher |
PANGAEA |
publishDate |
2011 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.771562 https://doi.org/10.1594/PANGAEA.771562 |
op_coverage |
MEDIAN LATITUDE: 31.955418 * MEDIAN LONGITUDE: -76.977574 * SOUTH-BOUND LATITUDE: 29.992270 * WEST-BOUND LONGITUDE: -77.250000 * NORTH-BOUND LATITUDE: 33.133300 * EAST-BOUND LONGITUDE: -76.523520 * DATE/TIME START: 1997-02-06T00:00:00 * DATE/TIME END: 1997-02-06T20:30:00 |
long_lat |
ENVELOPE(-77.250000,-76.523520,33.133300,29.992270) |
genre |
Antarc* Antarctic North Atlantic |
genre_facet |
Antarc* Antarctic North Atlantic |
op_source |
Supplement to: Katz, Miriam E; Cramer, Benjamin S; Toggweiler, J Robbie; Esmay, Gar; Liu, Chengji; Miller, Kenneth G; Rosenthal, Yair; Wade, Bridget S; Wright, James D (2011): Impact of Antarctic Circumpolar Current development on late Paleogene ocean structure. Science, 332(6033), 1076-7079, https://doi.org/10.1126/science.1202122 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.771562 https://doi.org/10.1594/PANGAEA.771562 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.77156210.1126/science.1202122 |
_version_ |
1799470543049588736 |