Planktonic foraminifera and their stable isotope record of MICNESS samples off Cape Cod
Monthly samples of stratified plankton tows taken from the slope waters off Cape Cod nearly 25 years ago are used to describe the seasonal succession of planktonic foraminifera and their oxygen isotope ratios. The 15°C seasonal cycle of sea surface temperature (SST) accounts for a diverse mixture of...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.835235 2023-05-15T17:14:58+02:00 Planktonic foraminifera and their stable isotope record of MICNESS samples off Cape Cod Keigwin, Lloyd D Bice, David M Copley, Nancy J MEDIAN LATITUDE: 39.841110 * MEDIAN LONGITUDE: -68.568769 * SOUTH-BOUND LATITUDE: 39.211000 * WEST-BOUND LONGITUDE: -71.116000 * NORTH-BOUND LATITUDE: 40.266000 * EAST-BOUND LONGITUDE: -66.047000 * DATE/TIME START: 1981-04-29T00:00:00 * DATE/TIME END: 1982-05-02T00:00:00 2005-08-26 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.835235 https://doi.org/10.1594/PANGAEA.835235 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.835235 https://doi.org/10.1594/PANGAEA.835235 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Keigwin, Lloyd D; Bice, David M; Copley, Nancy J (2005): Seasonality and stable isotopes in planktonic foraminifera off Cape Cod, Massachusetts. Paleoceanography, 20(4), PA4011, https://doi.org/10.1029/2005PA001150 Dataset 2005 ftpangaea https://doi.org/10.1594/PANGAEA.835235 https://doi.org/10.1029/2005PA001150 2023-01-20T07:33:20Z Monthly samples of stratified plankton tows taken from the slope waters off Cape Cod nearly 25 years ago are used to describe the seasonal succession of planktonic foraminifera and their oxygen isotope ratios. The 15°C seasonal cycle of sea surface temperature (SST) accounts for a diverse mixture of tropical to subpolar species. Summer samples include various Globigerinoides and Neogloboquadrina dutertrei, whereas winter and early spring species include Globigerina bulloides and Neogloboquadrina pachyderma (dextral). Globorotalia inflata lives all year but at varying water depths. Compared with the fauna in 1960-1961 (described by R. Cifelli), our samples seem warmer. Because sea surface salinity varies little during the year, d18O is mostly a function of SST. Throughout the year, there are always species present with d18O close to the calculated isotopic equilibrium of carbonate with surface seawater. This raises the possibility that seasonality can be estimated directly from the range of d18O in a sediment sample provided that the d18O-salinity relationship is the same as today. Dataset Neogloboquadrina pachyderma Planktonic foraminifera PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-71.116000,-66.047000,40.266000,39.211000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
description |
Monthly samples of stratified plankton tows taken from the slope waters off Cape Cod nearly 25 years ago are used to describe the seasonal succession of planktonic foraminifera and their oxygen isotope ratios. The 15°C seasonal cycle of sea surface temperature (SST) accounts for a diverse mixture of tropical to subpolar species. Summer samples include various Globigerinoides and Neogloboquadrina dutertrei, whereas winter and early spring species include Globigerina bulloides and Neogloboquadrina pachyderma (dextral). Globorotalia inflata lives all year but at varying water depths. Compared with the fauna in 1960-1961 (described by R. Cifelli), our samples seem warmer. Because sea surface salinity varies little during the year, d18O is mostly a function of SST. Throughout the year, there are always species present with d18O close to the calculated isotopic equilibrium of carbonate with surface seawater. This raises the possibility that seasonality can be estimated directly from the range of d18O in a sediment sample provided that the d18O-salinity relationship is the same as today. |
format |
Dataset |
author |
Keigwin, Lloyd D Bice, David M Copley, Nancy J |
spellingShingle |
Keigwin, Lloyd D Bice, David M Copley, Nancy J Planktonic foraminifera and their stable isotope record of MICNESS samples off Cape Cod |
author_facet |
Keigwin, Lloyd D Bice, David M Copley, Nancy J |
author_sort |
Keigwin, Lloyd D |
title |
Planktonic foraminifera and their stable isotope record of MICNESS samples off Cape Cod |
title_short |
Planktonic foraminifera and their stable isotope record of MICNESS samples off Cape Cod |
title_full |
Planktonic foraminifera and their stable isotope record of MICNESS samples off Cape Cod |
title_fullStr |
Planktonic foraminifera and their stable isotope record of MICNESS samples off Cape Cod |
title_full_unstemmed |
Planktonic foraminifera and their stable isotope record of MICNESS samples off Cape Cod |
title_sort |
planktonic foraminifera and their stable isotope record of micness samples off cape cod |
publisher |
PANGAEA |
publishDate |
2005 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.835235 https://doi.org/10.1594/PANGAEA.835235 |
op_coverage |
MEDIAN LATITUDE: 39.841110 * MEDIAN LONGITUDE: -68.568769 * SOUTH-BOUND LATITUDE: 39.211000 * WEST-BOUND LONGITUDE: -71.116000 * NORTH-BOUND LATITUDE: 40.266000 * EAST-BOUND LONGITUDE: -66.047000 * DATE/TIME START: 1981-04-29T00:00:00 * DATE/TIME END: 1982-05-02T00:00:00 |
long_lat |
ENVELOPE(-71.116000,-66.047000,40.266000,39.211000) |
genre |
Neogloboquadrina pachyderma Planktonic foraminifera |
genre_facet |
Neogloboquadrina pachyderma Planktonic foraminifera |
op_source |
Supplement to: Keigwin, Lloyd D; Bice, David M; Copley, Nancy J (2005): Seasonality and stable isotopes in planktonic foraminifera off Cape Cod, Massachusetts. Paleoceanography, 20(4), PA4011, https://doi.org/10.1029/2005PA001150 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.835235 https://doi.org/10.1594/PANGAEA.835235 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.835235 https://doi.org/10.1029/2005PA001150 |
_version_ |
1766073082392346624 |