Dissolution index and shell weights of planktonic foraminifera
Finding the ideal deep-sea CaCO3 dissolution proxy is essential for quantifying the role of the marine carbonate system in regulating atmospheric pCO2 over millennia. We explore the potential of using the Globorotalia menardii fragmentation index (MFI) and size-normalized foraminifer shell weight (S...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.832534 2023-05-15T18:01:02+02:00 Dissolution index and shell weights of planktonic foraminifera Mekik, Figen Raterink, Lisa MEDIAN LATITUDE: -3.246032 * MEDIAN LONGITUDE: -149.244196 * SOUTH-BOUND LATITUDE: -27.085000 * WEST-BOUND LONGITUDE: 155.865000 * NORTH-BOUND LATITUDE: 10.490000 * EAST-BOUND LONGITUDE: -77.563000 * DATE/TIME START: 1963-12-20T00:00:00 * DATE/TIME END: 1989-09-20T00:00:00 2008-05-15 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.832534 https://doi.org/10.1594/PANGAEA.832534 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.832534 https://doi.org/10.1594/PANGAEA.832534 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Mekik, Figen; Raterink, Lisa (2008): Effects of surface ocean conditions on deep-sea calcite dissolution proxies in the tropical Pacific. Paleoceanography, 23(1), PA1216, https://doi.org/10.1029/2007PA001433 Dataset 2008 ftpangaea https://doi.org/10.1594/PANGAEA.832534 https://doi.org/10.1029/2007PA001433 2023-01-20T07:33:17Z Finding the ideal deep-sea CaCO3 dissolution proxy is essential for quantifying the role of the marine carbonate system in regulating atmospheric pCO2 over millennia. We explore the potential of using the Globorotalia menardii fragmentation index (MFI) and size-normalized foraminifer shell weight (SNSW) as complementary indicators of deep-sea CaCO3 dissolution. MFI has strong correlations with bottom water [CO3]2-, modeled estimates of percent CaCO3 dissolved, and Mg/Ca in Pulleniatina obliquiloculata in core top samples along a depth transect on the Ontong Java Plateau (OJP) where surface ocean temperature variation is minimal. SNSW of P. obliquiloculata and Neogloboquadrina dutertrei have weak correlations with MFI-based percent dissolved, Mg/Ca in P. obliquiloculata shells and bottom water [CO3]2- on the OJP. In core top samples from the eastern equatorial Pacific (EEP), SNSW of P. obliquiloculata has moderate to strong correlations with both MFI-based percent CaCO3 dissolved estimates and surface ocean environmental parameters. SNSW of N. dutertrei shells shows a latitudinal distribution in the EEP and a moderately strong correlation with MFI-based percent dissolved estimates when samples from the equatorial part of the region are excluded. Our results suggest that there may potentially be multiple genotypes of N. dutertrei in the EEP which may be reflected in their shell weight. MFI-based percent CaCO3 dissolved estimates have no quantifiable relationship with any surface ocean environmental parameter in the EEP. Thus MFI acts as a reliable quantitative CaCO3 dissolution proxy insensitive to environmental biases within calcification waters of foraminifers. Dataset Planktonic foraminifera PANGAEA - Data Publisher for Earth & Environmental Science Pacific ENVELOPE(155.865000,-77.563000,10.490000,-27.085000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
description |
Finding the ideal deep-sea CaCO3 dissolution proxy is essential for quantifying the role of the marine carbonate system in regulating atmospheric pCO2 over millennia. We explore the potential of using the Globorotalia menardii fragmentation index (MFI) and size-normalized foraminifer shell weight (SNSW) as complementary indicators of deep-sea CaCO3 dissolution. MFI has strong correlations with bottom water [CO3]2-, modeled estimates of percent CaCO3 dissolved, and Mg/Ca in Pulleniatina obliquiloculata in core top samples along a depth transect on the Ontong Java Plateau (OJP) where surface ocean temperature variation is minimal. SNSW of P. obliquiloculata and Neogloboquadrina dutertrei have weak correlations with MFI-based percent dissolved, Mg/Ca in P. obliquiloculata shells and bottom water [CO3]2- on the OJP. In core top samples from the eastern equatorial Pacific (EEP), SNSW of P. obliquiloculata has moderate to strong correlations with both MFI-based percent CaCO3 dissolved estimates and surface ocean environmental parameters. SNSW of N. dutertrei shells shows a latitudinal distribution in the EEP and a moderately strong correlation with MFI-based percent dissolved estimates when samples from the equatorial part of the region are excluded. Our results suggest that there may potentially be multiple genotypes of N. dutertrei in the EEP which may be reflected in their shell weight. MFI-based percent CaCO3 dissolved estimates have no quantifiable relationship with any surface ocean environmental parameter in the EEP. Thus MFI acts as a reliable quantitative CaCO3 dissolution proxy insensitive to environmental biases within calcification waters of foraminifers. |
format |
Dataset |
author |
Mekik, Figen Raterink, Lisa |
spellingShingle |
Mekik, Figen Raterink, Lisa Dissolution index and shell weights of planktonic foraminifera |
author_facet |
Mekik, Figen Raterink, Lisa |
author_sort |
Mekik, Figen |
title |
Dissolution index and shell weights of planktonic foraminifera |
title_short |
Dissolution index and shell weights of planktonic foraminifera |
title_full |
Dissolution index and shell weights of planktonic foraminifera |
title_fullStr |
Dissolution index and shell weights of planktonic foraminifera |
title_full_unstemmed |
Dissolution index and shell weights of planktonic foraminifera |
title_sort |
dissolution index and shell weights of planktonic foraminifera |
publisher |
PANGAEA |
publishDate |
2008 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.832534 https://doi.org/10.1594/PANGAEA.832534 |
op_coverage |
MEDIAN LATITUDE: -3.246032 * MEDIAN LONGITUDE: -149.244196 * SOUTH-BOUND LATITUDE: -27.085000 * WEST-BOUND LONGITUDE: 155.865000 * NORTH-BOUND LATITUDE: 10.490000 * EAST-BOUND LONGITUDE: -77.563000 * DATE/TIME START: 1963-12-20T00:00:00 * DATE/TIME END: 1989-09-20T00:00:00 |
long_lat |
ENVELOPE(155.865000,-77.563000,10.490000,-27.085000) |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
Supplement to: Mekik, Figen; Raterink, Lisa (2008): Effects of surface ocean conditions on deep-sea calcite dissolution proxies in the tropical Pacific. Paleoceanography, 23(1), PA1216, https://doi.org/10.1029/2007PA001433 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.832534 https://doi.org/10.1594/PANGAEA.832534 |
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.832534 https://doi.org/10.1029/2007PA001433 |
_version_ |
1766170358219538432 |