Estimating Pliocene sea-surface temperatures in the Mediterranean: An approach based on the modern analogs technique
The possibilities of adapting the Modern Analogs Technique (MAT) based on planktonic foraminifers for estimating sea-surface temperatures (SST) in the Mediterranean during the Pliocene are discussed in this article. The calibration database used comprises 684 core-top samples distributed in the Nort...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.693901 2023-05-15T17:34:25+02:00 Estimating Pliocene sea-surface temperatures in the Mediterranean: An approach based on the modern analogs technique Serrano, Francisco Gonzáles-Donoso, José M Palmqvist, Paul Guerra-Merchán, Antonio Linares, Dolores Pérez-Claros, Juan A LATITUDE: 38.896633 * LONGITUDE: 4.509883 * DATE/TIME START: 1995-05-14T00:00:00 * DATE/TIME END: 1995-08-19T00:00:00 2007-05-21 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.693901 https://doi.org/10.1594/PANGAEA.693901 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.693901 https://doi.org/10.1594/PANGAEA.693901 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Serrano, Francisco; Gonzáles-Donoso, José M; Palmqvist, Paul; Guerra-Merchán, Antonio; Linares, Dolores; Pérez-Claros, Juan A (2007): Estimating Pliocene sea-surface temperatures in the Mediterranean: An approach based on the modern analogs technique. Palaeogeography, Palaeoclimatology, Palaeoecology, 243(1-2), 174-188, https://doi.org/10.1016/j.palaeo.2006.07.012 161-975 COMPCORE Composite Core Joides Resolution Leg161 Ocean Drilling Program ODP Western Basin Dataset 2007 ftpangaea https://doi.org/10.1594/PANGAEA.693901 https://doi.org/10.1016/j.palaeo.2006.07.012 2023-01-20T07:31:11Z The possibilities of adapting the Modern Analogs Technique (MAT) based on planktonic foraminifers for estimating sea-surface temperatures (SST) in the Mediterranean during the Pliocene are discussed in this article. The calibration database used comprises 684 core-top samples distributed in the North Atlantic and the Mediterranean. MAT estimates show an imperceptible bias (-0.03 °C; sigma=0.59) and a low mean error of estimates (0.42 °C; sigma=0.42) when applied over the samples of the calibration dataset. The procedure used for assimilating the Pliocene taxonomic categories to those of the modern assemblages results in an increase from 17 to 40 in the number of samples showing an error N2 °C when applied over the calibration database. However, the precision of MAT does not diminish when these samples are removed from the dataset. This methodology was used for obtaining SST estimates of late-middle Pliocene–earliest Pleistocene samples from ODP-site 975 (Menorca area), which have close modern analogs within the calibration database. In order to compare this technique with an additional proxy, we measured also delta18O values of G. bulloides tests from these samples. The results obtained show a good agreement on the whole, which corroborates the validity of the technical approach proposed. Dataset North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science Western Basin ENVELOPE(4.509883,4.509883,38.896633,38.896633) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
161-975 COMPCORE Composite Core Joides Resolution Leg161 Ocean Drilling Program ODP Western Basin |
spellingShingle |
161-975 COMPCORE Composite Core Joides Resolution Leg161 Ocean Drilling Program ODP Western Basin Serrano, Francisco Gonzáles-Donoso, José M Palmqvist, Paul Guerra-Merchán, Antonio Linares, Dolores Pérez-Claros, Juan A Estimating Pliocene sea-surface temperatures in the Mediterranean: An approach based on the modern analogs technique |
topic_facet |
161-975 COMPCORE Composite Core Joides Resolution Leg161 Ocean Drilling Program ODP Western Basin |
description |
The possibilities of adapting the Modern Analogs Technique (MAT) based on planktonic foraminifers for estimating sea-surface temperatures (SST) in the Mediterranean during the Pliocene are discussed in this article. The calibration database used comprises 684 core-top samples distributed in the North Atlantic and the Mediterranean. MAT estimates show an imperceptible bias (-0.03 °C; sigma=0.59) and a low mean error of estimates (0.42 °C; sigma=0.42) when applied over the samples of the calibration dataset. The procedure used for assimilating the Pliocene taxonomic categories to those of the modern assemblages results in an increase from 17 to 40 in the number of samples showing an error N2 °C when applied over the calibration database. However, the precision of MAT does not diminish when these samples are removed from the dataset. This methodology was used for obtaining SST estimates of late-middle Pliocene–earliest Pleistocene samples from ODP-site 975 (Menorca area), which have close modern analogs within the calibration database. In order to compare this technique with an additional proxy, we measured also delta18O values of G. bulloides tests from these samples. The results obtained show a good agreement on the whole, which corroborates the validity of the technical approach proposed. |
format |
Dataset |
author |
Serrano, Francisco Gonzáles-Donoso, José M Palmqvist, Paul Guerra-Merchán, Antonio Linares, Dolores Pérez-Claros, Juan A |
author_facet |
Serrano, Francisco Gonzáles-Donoso, José M Palmqvist, Paul Guerra-Merchán, Antonio Linares, Dolores Pérez-Claros, Juan A |
author_sort |
Serrano, Francisco |
title |
Estimating Pliocene sea-surface temperatures in the Mediterranean: An approach based on the modern analogs technique |
title_short |
Estimating Pliocene sea-surface temperatures in the Mediterranean: An approach based on the modern analogs technique |
title_full |
Estimating Pliocene sea-surface temperatures in the Mediterranean: An approach based on the modern analogs technique |
title_fullStr |
Estimating Pliocene sea-surface temperatures in the Mediterranean: An approach based on the modern analogs technique |
title_full_unstemmed |
Estimating Pliocene sea-surface temperatures in the Mediterranean: An approach based on the modern analogs technique |
title_sort |
estimating pliocene sea-surface temperatures in the mediterranean: an approach based on the modern analogs technique |
publisher |
PANGAEA |
publishDate |
2007 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.693901 https://doi.org/10.1594/PANGAEA.693901 |
op_coverage |
LATITUDE: 38.896633 * LONGITUDE: 4.509883 * DATE/TIME START: 1995-05-14T00:00:00 * DATE/TIME END: 1995-08-19T00:00:00 |
long_lat |
ENVELOPE(4.509883,4.509883,38.896633,38.896633) |
geographic |
Western Basin |
geographic_facet |
Western Basin |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Supplement to: Serrano, Francisco; Gonzáles-Donoso, José M; Palmqvist, Paul; Guerra-Merchán, Antonio; Linares, Dolores; Pérez-Claros, Juan A (2007): Estimating Pliocene sea-surface temperatures in the Mediterranean: An approach based on the modern analogs technique. Palaeogeography, Palaeoclimatology, Palaeoecology, 243(1-2), 174-188, https://doi.org/10.1016/j.palaeo.2006.07.012 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.693901 https://doi.org/10.1594/PANGAEA.693901 |
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.693901 https://doi.org/10.1016/j.palaeo.2006.07.012 |
_version_ |
1766133252559470592 |