Paleoenvironmental changes in the western Mediterranean since the last glacial maximum: High resolution multiproxy record from the Algero-Balearic basin, supplement to: Jiménez-Espejo, Francisco Jose; Martinez-Ruiz, Francisca C; Sakamoto, Tatsuhiko; Iijima, Koichi; Gallego-Torres, David; Harada, Naomi (2007): Paleoenvironmental changes in the western Mediterranean since the last glacial maximum: High resolution multiproxy record from the Algero–Balearic basin. Palaeogeography, Palaeoclimatology, Palaeoecology, 246(2-4), 192-306
The present study uses a multiproxy approach in order to further understand the evolution of climate responses in the western Mediterranean as of the Last Glacial Maximum. Sediments from ODP Site 975 in the Algero-Balearic basin have been analysed at high resolution, both geochemically andmineralogi...
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Online Access: | https://dx.doi.org/10.1594/pangaea.693920 https://doi.pangaea.de/10.1594/PANGAEA.693920 |
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ftdatacite:10.1594/pangaea.693920 2023-05-15T17:36:38+02:00 Paleoenvironmental changes in the western Mediterranean since the last glacial maximum: High resolution multiproxy record from the Algero-Balearic basin, supplement to: Jiménez-Espejo, Francisco Jose; Martinez-Ruiz, Francisca C; Sakamoto, Tatsuhiko; Iijima, Koichi; Gallego-Torres, David; Harada, Naomi (2007): Paleoenvironmental changes in the western Mediterranean since the last glacial maximum: High resolution multiproxy record from the Algero–Balearic basin. Palaeogeography, Palaeoclimatology, Palaeoecology, 246(2-4), 192-306 Jiménez-Espejo, Francisco Jose Martinez-Ruiz, Francisca C Sakamoto, Tatsuhiko Iijima, Koichi Gallego-Torres, David Harada, Naomi 2007 application/zip https://dx.doi.org/10.1594/pangaea.693920 https://doi.pangaea.de/10.1594/PANGAEA.693920 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1016/j.palaeo.2006.10.005 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Drilling/drill rig Leg161 Joides Resolution Ocean Drilling Program ODP Supplementary Collection of Datasets Collection article 2007 ftdatacite https://doi.org/10.1594/pangaea.693920 https://doi.org/10.1016/j.palaeo.2006.10.005 2022-02-08T16:24:46Z The present study uses a multiproxy approach in order to further understand the evolution of climate responses in the western Mediterranean as of the Last Glacial Maximum. Sediments from ODP Site 975 in the Algero-Balearic basin have been analysed at high resolution, both geochemically andmineralogicallly. The resulting data have been used as proxies to establish a sedimentary regime, primary marine productivity, the preservation of the proxies and oxygen conditions. Fluctuations in detrital element concentrations were mainly the consequence of wet/arid oscillations. Productivity has been established using Ba excess, according to which marine productivity appears to have been greatest during cold events Heinrich 1 and Younger Dryas. The S1 time interval was not as marked by increases in productivity as was the eastern Mediterranean. In contrast, the S1 interval was first characterized by a decreasing trend and then by a fall in productivity after the 8.2 ky BP dry-cold event. Since then productivity has remained low. Here we report that there was an important redox event in this basin, probably a consequence of the major oceanographic circulation change occurring in the western Mediterranean at 7.7 ky BP. This circulation change led to reventilation as well as to diagenetic remobilization of redox-sensitive elements and organic matter oxidation. Comparisons between our paleoceanographic reconstruction for this basin and those regarding other Mediterranean basins support the hypothesis that across the Mediterranean there were different types of responses to climate forcing mechanism. The Algero-Balearic basin is likely to be a key area for further understanding of the relationships between the North Atlantic and the eastern Mediterranean basins. Article in Journal/Newspaper North Atlantic DataCite Metadata Store (German National Library of Science and Technology) Jiménez ENVELOPE(-68.083,-68.083,-67.567,-67.567) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Drilling/drill rig Leg161 Joides Resolution Ocean Drilling Program ODP |
spellingShingle |
Drilling/drill rig Leg161 Joides Resolution Ocean Drilling Program ODP Jiménez-Espejo, Francisco Jose Martinez-Ruiz, Francisca C Sakamoto, Tatsuhiko Iijima, Koichi Gallego-Torres, David Harada, Naomi Paleoenvironmental changes in the western Mediterranean since the last glacial maximum: High resolution multiproxy record from the Algero-Balearic basin, supplement to: Jiménez-Espejo, Francisco Jose; Martinez-Ruiz, Francisca C; Sakamoto, Tatsuhiko; Iijima, Koichi; Gallego-Torres, David; Harada, Naomi (2007): Paleoenvironmental changes in the western Mediterranean since the last glacial maximum: High resolution multiproxy record from the Algero–Balearic basin. Palaeogeography, Palaeoclimatology, Palaeoecology, 246(2-4), 192-306 |
topic_facet |
Drilling/drill rig Leg161 Joides Resolution Ocean Drilling Program ODP |
description |
The present study uses a multiproxy approach in order to further understand the evolution of climate responses in the western Mediterranean as of the Last Glacial Maximum. Sediments from ODP Site 975 in the Algero-Balearic basin have been analysed at high resolution, both geochemically andmineralogicallly. The resulting data have been used as proxies to establish a sedimentary regime, primary marine productivity, the preservation of the proxies and oxygen conditions. Fluctuations in detrital element concentrations were mainly the consequence of wet/arid oscillations. Productivity has been established using Ba excess, according to which marine productivity appears to have been greatest during cold events Heinrich 1 and Younger Dryas. The S1 time interval was not as marked by increases in productivity as was the eastern Mediterranean. In contrast, the S1 interval was first characterized by a decreasing trend and then by a fall in productivity after the 8.2 ky BP dry-cold event. Since then productivity has remained low. Here we report that there was an important redox event in this basin, probably a consequence of the major oceanographic circulation change occurring in the western Mediterranean at 7.7 ky BP. This circulation change led to reventilation as well as to diagenetic remobilization of redox-sensitive elements and organic matter oxidation. Comparisons between our paleoceanographic reconstruction for this basin and those regarding other Mediterranean basins support the hypothesis that across the Mediterranean there were different types of responses to climate forcing mechanism. The Algero-Balearic basin is likely to be a key area for further understanding of the relationships between the North Atlantic and the eastern Mediterranean basins. |
format |
Article in Journal/Newspaper |
author |
Jiménez-Espejo, Francisco Jose Martinez-Ruiz, Francisca C Sakamoto, Tatsuhiko Iijima, Koichi Gallego-Torres, David Harada, Naomi |
author_facet |
Jiménez-Espejo, Francisco Jose Martinez-Ruiz, Francisca C Sakamoto, Tatsuhiko Iijima, Koichi Gallego-Torres, David Harada, Naomi |
author_sort |
Jiménez-Espejo, Francisco Jose |
title |
Paleoenvironmental changes in the western Mediterranean since the last glacial maximum: High resolution multiproxy record from the Algero-Balearic basin, supplement to: Jiménez-Espejo, Francisco Jose; Martinez-Ruiz, Francisca C; Sakamoto, Tatsuhiko; Iijima, Koichi; Gallego-Torres, David; Harada, Naomi (2007): Paleoenvironmental changes in the western Mediterranean since the last glacial maximum: High resolution multiproxy record from the Algero–Balearic basin. Palaeogeography, Palaeoclimatology, Palaeoecology, 246(2-4), 192-306 |
title_short |
Paleoenvironmental changes in the western Mediterranean since the last glacial maximum: High resolution multiproxy record from the Algero-Balearic basin, supplement to: Jiménez-Espejo, Francisco Jose; Martinez-Ruiz, Francisca C; Sakamoto, Tatsuhiko; Iijima, Koichi; Gallego-Torres, David; Harada, Naomi (2007): Paleoenvironmental changes in the western Mediterranean since the last glacial maximum: High resolution multiproxy record from the Algero–Balearic basin. Palaeogeography, Palaeoclimatology, Palaeoecology, 246(2-4), 192-306 |
title_full |
Paleoenvironmental changes in the western Mediterranean since the last glacial maximum: High resolution multiproxy record from the Algero-Balearic basin, supplement to: Jiménez-Espejo, Francisco Jose; Martinez-Ruiz, Francisca C; Sakamoto, Tatsuhiko; Iijima, Koichi; Gallego-Torres, David; Harada, Naomi (2007): Paleoenvironmental changes in the western Mediterranean since the last glacial maximum: High resolution multiproxy record from the Algero–Balearic basin. Palaeogeography, Palaeoclimatology, Palaeoecology, 246(2-4), 192-306 |
title_fullStr |
Paleoenvironmental changes in the western Mediterranean since the last glacial maximum: High resolution multiproxy record from the Algero-Balearic basin, supplement to: Jiménez-Espejo, Francisco Jose; Martinez-Ruiz, Francisca C; Sakamoto, Tatsuhiko; Iijima, Koichi; Gallego-Torres, David; Harada, Naomi (2007): Paleoenvironmental changes in the western Mediterranean since the last glacial maximum: High resolution multiproxy record from the Algero–Balearic basin. Palaeogeography, Palaeoclimatology, Palaeoecology, 246(2-4), 192-306 |
title_full_unstemmed |
Paleoenvironmental changes in the western Mediterranean since the last glacial maximum: High resolution multiproxy record from the Algero-Balearic basin, supplement to: Jiménez-Espejo, Francisco Jose; Martinez-Ruiz, Francisca C; Sakamoto, Tatsuhiko; Iijima, Koichi; Gallego-Torres, David; Harada, Naomi (2007): Paleoenvironmental changes in the western Mediterranean since the last glacial maximum: High resolution multiproxy record from the Algero–Balearic basin. Palaeogeography, Palaeoclimatology, Palaeoecology, 246(2-4), 192-306 |
title_sort |
paleoenvironmental changes in the western mediterranean since the last glacial maximum: high resolution multiproxy record from the algero-balearic basin, supplement to: jiménez-espejo, francisco jose; martinez-ruiz, francisca c; sakamoto, tatsuhiko; iijima, koichi; gallego-torres, david; harada, naomi (2007): paleoenvironmental changes in the western mediterranean since the last glacial maximum: high resolution multiproxy record from the algero–balearic basin. palaeogeography, palaeoclimatology, palaeoecology, 246(2-4), 192-306 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2007 |
url |
https://dx.doi.org/10.1594/pangaea.693920 https://doi.pangaea.de/10.1594/PANGAEA.693920 |
long_lat |
ENVELOPE(-68.083,-68.083,-67.567,-67.567) |
geographic |
Jiménez |
geographic_facet |
Jiménez |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://dx.doi.org/10.1016/j.palaeo.2006.10.005 |
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.693920 https://doi.org/10.1016/j.palaeo.2006.10.005 |
_version_ |
1766136182330097664 |