(Table 2) Mg/Ca and Sr/Ca composition of planktonic foraminifera from ODP Hole 143-865B, supplement to: Tripati, Aradhna K; Delaney, Margaret Lois; Zachos, James C; Anderson, Linda Davis; Kelly, Daniel Clay; Elderfield, Henry (2003): Tropical sea-surface temperature reconstruction for the early Paleogene using Mg/Ca ratios of planktonic foraminifera. Paleoceanography, 18(4), 1101
To understand the climate dynamics of hypothesized past greenhouse intervals, it is essential to constrain tropical sea-surface temperatures (SST), yet existing proxy records give conflicting results. Here we present the first Mg/Ca-based study of pre-Quaternary SST and investigate early Paleogene (...
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ftdatacite:10.1594/pangaea.841333 2023-05-15T18:00:39+02:00 (Table 2) Mg/Ca and Sr/Ca composition of planktonic foraminifera from ODP Hole 143-865B, supplement to: Tripati, Aradhna K; Delaney, Margaret Lois; Zachos, James C; Anderson, Linda Davis; Kelly, Daniel Clay; Elderfield, Henry (2003): Tropical sea-surface temperature reconstruction for the early Paleogene using Mg/Ca ratios of planktonic foraminifera. Paleoceanography, 18(4), 1101 Tripati, Aradhna K Delaney, Margaret Lois Zachos, James C Anderson, Linda Davis Kelly, Daniel Clay Elderfield, Henry 2003 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.841333 https://doi.pangaea.de/10.1594/PANGAEA.841333 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1029/2003pa000937 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Sample code/label DEPTH, sediment/rock AGE Morozovella aragonensis, Magnesium/Calcium ratio Morozovella aragonensis, Strontium/Calcium ratio Morozovella lehneri, Magnesium/Calcium ratio Morozovella lehneri, Strontium/Calcium ratio Morozovella spinulosa, Magnesium/Calcium ratio Morozovella spinulosa, Strontium/Calcium ratio Morozovella subbotinae, Magnesium/Calcium ratio Morozovella subbotinae, Strontium/Calcium ratio Morozovella velascoensis, Magnesium/Calcium ratio Morozovella velascoensis, Strontium/Calcium ratio Drilling/drill rig DSDP/ODP/IODP sample designation ICP-OES, Inductively coupled plasma - optical emission spectrometry Leg143 Joides Resolution Ocean Drilling Program ODP Supplementary Dataset dataset Dataset 2003 ftdatacite https://doi.org/10.1594/pangaea.841333 https://doi.org/10.1029/2003pa000937 2022-02-08T16:24:46Z To understand the climate dynamics of hypothesized past greenhouse intervals, it is essential to constrain tropical sea-surface temperatures (SST), yet existing proxy records give conflicting results. Here we present the first Mg/Ca-based study of pre-Quaternary SST and investigate early Paleogene (late Paleocene through late middle Eocene; 58.6-39.8 Ma) tropical temperatures, using planktonic foraminifera belonging to the genus Morozovella from Ocean Drilling Program Site 865 on Allison Guyot (western central equatorial Pacific Ocean). Calcification temperatures similar to or warmer than modern tropical SST are calculated using a range of assumptions regarding diagenesis, temperature calibration, and seawater Mg/Ca. Long-term warming is observed into the early Eocene (54.8-49.0 Ma), with peak SST between 51 and 48 Ma and rapid cooling of 4°C beginning at 48 Ma. These findings are inconsistent with the d18O-based SST previously estimated for this site. : Sediment depth is given in mbsf. Mg/Ca ratios have been adjusted using the average species offset from M. aragonensis. The offset is +0.16 mmol/mol for M. lehneri, -0.06 mmol/mol for M. spinulosa, -0.20 for M. subbotinae, and -0.08 for M. velazcoensis. bSr/Ca ratios have been adjusted using the average species offset from M. aragonensis. No offset is observed between M. spinulosa and M. aragonensis. The offset is +0.04 mmol/mol for M. lehneri, -0.03 for M. subbotinae, and -0.03 for M. velazcoensis. Samples without normalization calculation values have been excluded from discussion because of high Fe/Ca (>0.10 mmol/mol) and Fe/Mg (>0.02 mol/mol) ratios. Dataset Planktonic foraminifera DataCite Metadata Store (German National Library of Science and Technology) Pacific |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Sample code/label DEPTH, sediment/rock AGE Morozovella aragonensis, Magnesium/Calcium ratio Morozovella aragonensis, Strontium/Calcium ratio Morozovella lehneri, Magnesium/Calcium ratio Morozovella lehneri, Strontium/Calcium ratio Morozovella spinulosa, Magnesium/Calcium ratio Morozovella spinulosa, Strontium/Calcium ratio Morozovella subbotinae, Magnesium/Calcium ratio Morozovella subbotinae, Strontium/Calcium ratio Morozovella velascoensis, Magnesium/Calcium ratio Morozovella velascoensis, Strontium/Calcium ratio Drilling/drill rig DSDP/ODP/IODP sample designation ICP-OES, Inductively coupled plasma - optical emission spectrometry Leg143 Joides Resolution Ocean Drilling Program ODP |
spellingShingle |
Sample code/label DEPTH, sediment/rock AGE Morozovella aragonensis, Magnesium/Calcium ratio Morozovella aragonensis, Strontium/Calcium ratio Morozovella lehneri, Magnesium/Calcium ratio Morozovella lehneri, Strontium/Calcium ratio Morozovella spinulosa, Magnesium/Calcium ratio Morozovella spinulosa, Strontium/Calcium ratio Morozovella subbotinae, Magnesium/Calcium ratio Morozovella subbotinae, Strontium/Calcium ratio Morozovella velascoensis, Magnesium/Calcium ratio Morozovella velascoensis, Strontium/Calcium ratio Drilling/drill rig DSDP/ODP/IODP sample designation ICP-OES, Inductively coupled plasma - optical emission spectrometry Leg143 Joides Resolution Ocean Drilling Program ODP Tripati, Aradhna K Delaney, Margaret Lois Zachos, James C Anderson, Linda Davis Kelly, Daniel Clay Elderfield, Henry (Table 2) Mg/Ca and Sr/Ca composition of planktonic foraminifera from ODP Hole 143-865B, supplement to: Tripati, Aradhna K; Delaney, Margaret Lois; Zachos, James C; Anderson, Linda Davis; Kelly, Daniel Clay; Elderfield, Henry (2003): Tropical sea-surface temperature reconstruction for the early Paleogene using Mg/Ca ratios of planktonic foraminifera. Paleoceanography, 18(4), 1101 |
topic_facet |
Sample code/label DEPTH, sediment/rock AGE Morozovella aragonensis, Magnesium/Calcium ratio Morozovella aragonensis, Strontium/Calcium ratio Morozovella lehneri, Magnesium/Calcium ratio Morozovella lehneri, Strontium/Calcium ratio Morozovella spinulosa, Magnesium/Calcium ratio Morozovella spinulosa, Strontium/Calcium ratio Morozovella subbotinae, Magnesium/Calcium ratio Morozovella subbotinae, Strontium/Calcium ratio Morozovella velascoensis, Magnesium/Calcium ratio Morozovella velascoensis, Strontium/Calcium ratio Drilling/drill rig DSDP/ODP/IODP sample designation ICP-OES, Inductively coupled plasma - optical emission spectrometry Leg143 Joides Resolution Ocean Drilling Program ODP |
description |
To understand the climate dynamics of hypothesized past greenhouse intervals, it is essential to constrain tropical sea-surface temperatures (SST), yet existing proxy records give conflicting results. Here we present the first Mg/Ca-based study of pre-Quaternary SST and investigate early Paleogene (late Paleocene through late middle Eocene; 58.6-39.8 Ma) tropical temperatures, using planktonic foraminifera belonging to the genus Morozovella from Ocean Drilling Program Site 865 on Allison Guyot (western central equatorial Pacific Ocean). Calcification temperatures similar to or warmer than modern tropical SST are calculated using a range of assumptions regarding diagenesis, temperature calibration, and seawater Mg/Ca. Long-term warming is observed into the early Eocene (54.8-49.0 Ma), with peak SST between 51 and 48 Ma and rapid cooling of 4°C beginning at 48 Ma. These findings are inconsistent with the d18O-based SST previously estimated for this site. : Sediment depth is given in mbsf. Mg/Ca ratios have been adjusted using the average species offset from M. aragonensis. The offset is +0.16 mmol/mol for M. lehneri, -0.06 mmol/mol for M. spinulosa, -0.20 for M. subbotinae, and -0.08 for M. velazcoensis. bSr/Ca ratios have been adjusted using the average species offset from M. aragonensis. No offset is observed between M. spinulosa and M. aragonensis. The offset is +0.04 mmol/mol for M. lehneri, -0.03 for M. subbotinae, and -0.03 for M. velazcoensis. Samples without normalization calculation values have been excluded from discussion because of high Fe/Ca (>0.10 mmol/mol) and Fe/Mg (>0.02 mol/mol) ratios. |
format |
Dataset |
author |
Tripati, Aradhna K Delaney, Margaret Lois Zachos, James C Anderson, Linda Davis Kelly, Daniel Clay Elderfield, Henry |
author_facet |
Tripati, Aradhna K Delaney, Margaret Lois Zachos, James C Anderson, Linda Davis Kelly, Daniel Clay Elderfield, Henry |
author_sort |
Tripati, Aradhna K |
title |
(Table 2) Mg/Ca and Sr/Ca composition of planktonic foraminifera from ODP Hole 143-865B, supplement to: Tripati, Aradhna K; Delaney, Margaret Lois; Zachos, James C; Anderson, Linda Davis; Kelly, Daniel Clay; Elderfield, Henry (2003): Tropical sea-surface temperature reconstruction for the early Paleogene using Mg/Ca ratios of planktonic foraminifera. Paleoceanography, 18(4), 1101 |
title_short |
(Table 2) Mg/Ca and Sr/Ca composition of planktonic foraminifera from ODP Hole 143-865B, supplement to: Tripati, Aradhna K; Delaney, Margaret Lois; Zachos, James C; Anderson, Linda Davis; Kelly, Daniel Clay; Elderfield, Henry (2003): Tropical sea-surface temperature reconstruction for the early Paleogene using Mg/Ca ratios of planktonic foraminifera. Paleoceanography, 18(4), 1101 |
title_full |
(Table 2) Mg/Ca and Sr/Ca composition of planktonic foraminifera from ODP Hole 143-865B, supplement to: Tripati, Aradhna K; Delaney, Margaret Lois; Zachos, James C; Anderson, Linda Davis; Kelly, Daniel Clay; Elderfield, Henry (2003): Tropical sea-surface temperature reconstruction for the early Paleogene using Mg/Ca ratios of planktonic foraminifera. Paleoceanography, 18(4), 1101 |
title_fullStr |
(Table 2) Mg/Ca and Sr/Ca composition of planktonic foraminifera from ODP Hole 143-865B, supplement to: Tripati, Aradhna K; Delaney, Margaret Lois; Zachos, James C; Anderson, Linda Davis; Kelly, Daniel Clay; Elderfield, Henry (2003): Tropical sea-surface temperature reconstruction for the early Paleogene using Mg/Ca ratios of planktonic foraminifera. Paleoceanography, 18(4), 1101 |
title_full_unstemmed |
(Table 2) Mg/Ca and Sr/Ca composition of planktonic foraminifera from ODP Hole 143-865B, supplement to: Tripati, Aradhna K; Delaney, Margaret Lois; Zachos, James C; Anderson, Linda Davis; Kelly, Daniel Clay; Elderfield, Henry (2003): Tropical sea-surface temperature reconstruction for the early Paleogene using Mg/Ca ratios of planktonic foraminifera. Paleoceanography, 18(4), 1101 |
title_sort |
(table 2) mg/ca and sr/ca composition of planktonic foraminifera from odp hole 143-865b, supplement to: tripati, aradhna k; delaney, margaret lois; zachos, james c; anderson, linda davis; kelly, daniel clay; elderfield, henry (2003): tropical sea-surface temperature reconstruction for the early paleogene using mg/ca ratios of planktonic foraminifera. paleoceanography, 18(4), 1101 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2003 |
url |
https://dx.doi.org/10.1594/pangaea.841333 https://doi.pangaea.de/10.1594/PANGAEA.841333 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_relation |
https://dx.doi.org/10.1029/2003pa000937 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.841333 https://doi.org/10.1029/2003pa000937 |
_version_ |
1766169829736185856 |