Long chain n-alkanes deposited from borehole PRGL1P (ROMESS1) in the upper slope of the Gulf of Lions
During the PROMESS campaign (summer 2004) a borehole (PRGL1) was drilled in the upper slope of the Gulf of Lions. Previous studies showed that the deposition of the sedimentary units at borehole PRGL1 was determined by changes in the discharge of the Rhone river, induced by sea level and climate var...
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Format: | Dataset |
Language: | English |
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PANGAEA
2017
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.873377 https://doi.org/10.1594/PANGAEA.873377 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.873377 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Age model LR04 Lisiecki & Raymo (2005) Bavenit DEPTH sediment/rock DRILL Drilling/drill rig Gas chromatography - Mass spectrometry (GC-MS) Gulf of Lions n-Alkane C21 n-Alkane C22 n-Alkane C23 n-Alkane C24 n-Alkane C25 n-Alkane C26 n-Alkane C27 n-Alkane C28 n-Alkane C29 n-Alkane C30 n-Alkane C31 n-Alkane C32 n-Alkane C33 PRGL1-1 PROMESS1 |
spellingShingle |
Age model LR04 Lisiecki & Raymo (2005) Bavenit DEPTH sediment/rock DRILL Drilling/drill rig Gas chromatography - Mass spectrometry (GC-MS) Gulf of Lions n-Alkane C21 n-Alkane C22 n-Alkane C23 n-Alkane C24 n-Alkane C25 n-Alkane C26 n-Alkane C27 n-Alkane C28 n-Alkane C29 n-Alkane C30 n-Alkane C31 n-Alkane C32 n-Alkane C33 PRGL1-1 PROMESS1 Cortina, Aleix Grimalt, Joan O Rigual-Hernandez, Andrés S Ballegeer, Anne-Marie Martrat, Belén Sierro, Francisco Javier Flores, José-Abel Long chain n-alkanes deposited from borehole PRGL1P (ROMESS1) in the upper slope of the Gulf of Lions |
topic_facet |
Age model LR04 Lisiecki & Raymo (2005) Bavenit DEPTH sediment/rock DRILL Drilling/drill rig Gas chromatography - Mass spectrometry (GC-MS) Gulf of Lions n-Alkane C21 n-Alkane C22 n-Alkane C23 n-Alkane C24 n-Alkane C25 n-Alkane C26 n-Alkane C27 n-Alkane C28 n-Alkane C29 n-Alkane C30 n-Alkane C31 n-Alkane C32 n-Alkane C33 PRGL1-1 PROMESS1 |
description |
During the PROMESS campaign (summer 2004) a borehole (PRGL1) was drilled in the upper slope of the Gulf of Lions. Previous studies showed that the deposition of the sedimentary units at borehole PRGL1 was determined by changes in the discharge of the Rhone river, induced by sea level and climate variability with a strong 100 ka imprint. However, there are no detailed studies that focus on the glacial/interglacial transitions (i.e. Terminations) that define 100 ka Quaternary ice-age cycles. Here we present a high-resolution record of terrestrial long chain n-alkanes (C21 to C33) from MIS 3 to MIS 11 in order to monitor changes in the sediments deposited on the upper slope of the Gulf of Lions with the aim to provide new insight into the climatic events occurring during Terminations in the western Mediterranean Sea. Principal component analysis grouped n-alkane on the basis of the degree of maturation of organic matter (fresh/degraded) that allowed to monitor past variability in the source of the sediment deposited in the upper slope as a consequence of sea level and climate change. This information was used to estimate the impact that northern ice-sheet variability had on the western Mediterranean basin. As sea level started to fall, fresh terrestrial organic matter increased owing to the seaward migration of Rhone's mouth. Simultaneously, the decrease in sea level exposed old and reworked organic material from the Rhone's catchment, including the delta plain and the continental shelf, that was eroded and transported into our study site. This resulted in an increase in the proportion of degraded terrestrial organic matter together with sea level decrease. Aside from sea level changes, the proportion of fresh vs degraded organic matter seems to be affected by the amount of continental runoff, with an increasing proportion of fresh terrestrial organic matter occurring at times of reduced continental runoff. During the last glacial, the increase of fresh terrestrial organic matter was contemporaneous with Heinrich ... |
format |
Dataset |
author |
Cortina, Aleix Grimalt, Joan O Rigual-Hernandez, Andrés S Ballegeer, Anne-Marie Martrat, Belén Sierro, Francisco Javier Flores, José-Abel |
author_facet |
Cortina, Aleix Grimalt, Joan O Rigual-Hernandez, Andrés S Ballegeer, Anne-Marie Martrat, Belén Sierro, Francisco Javier Flores, José-Abel |
author_sort |
Cortina, Aleix |
title |
Long chain n-alkanes deposited from borehole PRGL1P (ROMESS1) in the upper slope of the Gulf of Lions |
title_short |
Long chain n-alkanes deposited from borehole PRGL1P (ROMESS1) in the upper slope of the Gulf of Lions |
title_full |
Long chain n-alkanes deposited from borehole PRGL1P (ROMESS1) in the upper slope of the Gulf of Lions |
title_fullStr |
Long chain n-alkanes deposited from borehole PRGL1P (ROMESS1) in the upper slope of the Gulf of Lions |
title_full_unstemmed |
Long chain n-alkanes deposited from borehole PRGL1P (ROMESS1) in the upper slope of the Gulf of Lions |
title_sort |
long chain n-alkanes deposited from borehole prgl1p (romess1) in the upper slope of the gulf of lions |
publisher |
PANGAEA |
publishDate |
2017 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.873377 https://doi.org/10.1594/PANGAEA.873377 |
op_coverage |
LATITUDE: 42.689809 * LONGITUDE: 3.837669 * DATE/TIME START: 2004-07-07T00:00:00 * DATE/TIME END: 2004-07-07T00:00:00 * MINIMUM DEPTH, sediment/rock: 19.25 m * MAXIMUM DEPTH, sediment/rock: 230.90 m |
long_lat |
ENVELOPE(158.733,158.733,-79.983,-79.983) ENVELOPE(3.837669,3.837669,42.689809,42.689809) |
geographic |
Rhone |
geographic_facet |
Rhone |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Supplement to: Cortina, Aleix; Grimalt, Joan O; Rigual-Hernandez, Andrés S; Ballegeer, Anne-Marie; Martrat, Belén; Sierro, Francisco Javier; Flores, José-Abel (2016): The impact of ice-sheet dynamics in western Mediterranean environmental conditions during Terminations. An approach based on terrestrial long chain n-alkanes deposited in the upper slope of the Gulf of Lions. Chemical Geology, 430, 21-33, https://doi.org/10.1016/j.chemgeo.2016.03.015 |
op_relation |
Frigola, Jaime; Canals, Miquel; Cacho, Isabel; Moreno, Ana; Sierro, Francisco Javier; Berné, Serge; Jouet, Gwenael; Dennielou, Bernard; Herrera, Gemma; Pasqual, C; Galavazi, M; Grimalt, Joan O; Schneider, Ralph R (2012): A 500 kyr record of global sea-level oscillations in the Gulf of Lion, Mediterranean Sea: new insights into MIS 3 sea-level variability. Climate of the Past, 8(3), 1067-1077, https://doi.org/10.5194/cp-8-1067-2012 https://doi.pangaea.de/10.1594/PANGAEA.873377 https://doi.org/10.1594/PANGAEA.873377 |
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.873377 https://doi.org/10.1016/j.chemgeo.2016.03.015 https://doi.org/10.5194/cp-8-1067-2012 |
_version_ |
1766032122656587776 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.873377 2023-05-15T16:41:40+02:00 Long chain n-alkanes deposited from borehole PRGL1P (ROMESS1) in the upper slope of the Gulf of Lions Cortina, Aleix Grimalt, Joan O Rigual-Hernandez, Andrés S Ballegeer, Anne-Marie Martrat, Belén Sierro, Francisco Javier Flores, José-Abel LATITUDE: 42.689809 * LONGITUDE: 3.837669 * DATE/TIME START: 2004-07-07T00:00:00 * DATE/TIME END: 2004-07-07T00:00:00 * MINIMUM DEPTH, sediment/rock: 19.25 m * MAXIMUM DEPTH, sediment/rock: 230.90 m 2017-03-10 text/tab-separated-values, 9800 data points https://doi.pangaea.de/10.1594/PANGAEA.873377 https://doi.org/10.1594/PANGAEA.873377 en eng PANGAEA Frigola, Jaime; Canals, Miquel; Cacho, Isabel; Moreno, Ana; Sierro, Francisco Javier; Berné, Serge; Jouet, Gwenael; Dennielou, Bernard; Herrera, Gemma; Pasqual, C; Galavazi, M; Grimalt, Joan O; Schneider, Ralph R (2012): A 500 kyr record of global sea-level oscillations in the Gulf of Lion, Mediterranean Sea: new insights into MIS 3 sea-level variability. Climate of the Past, 8(3), 1067-1077, https://doi.org/10.5194/cp-8-1067-2012 https://doi.pangaea.de/10.1594/PANGAEA.873377 https://doi.org/10.1594/PANGAEA.873377 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Cortina, Aleix; Grimalt, Joan O; Rigual-Hernandez, Andrés S; Ballegeer, Anne-Marie; Martrat, Belén; Sierro, Francisco Javier; Flores, José-Abel (2016): The impact of ice-sheet dynamics in western Mediterranean environmental conditions during Terminations. An approach based on terrestrial long chain n-alkanes deposited in the upper slope of the Gulf of Lions. Chemical Geology, 430, 21-33, https://doi.org/10.1016/j.chemgeo.2016.03.015 Age model LR04 Lisiecki & Raymo (2005) Bavenit DEPTH sediment/rock DRILL Drilling/drill rig Gas chromatography - Mass spectrometry (GC-MS) Gulf of Lions n-Alkane C21 n-Alkane C22 n-Alkane C23 n-Alkane C24 n-Alkane C25 n-Alkane C26 n-Alkane C27 n-Alkane C28 n-Alkane C29 n-Alkane C30 n-Alkane C31 n-Alkane C32 n-Alkane C33 PRGL1-1 PROMESS1 Dataset 2017 ftpangaea https://doi.org/10.1594/PANGAEA.873377 https://doi.org/10.1016/j.chemgeo.2016.03.015 https://doi.org/10.5194/cp-8-1067-2012 2023-01-20T09:08:48Z During the PROMESS campaign (summer 2004) a borehole (PRGL1) was drilled in the upper slope of the Gulf of Lions. Previous studies showed that the deposition of the sedimentary units at borehole PRGL1 was determined by changes in the discharge of the Rhone river, induced by sea level and climate variability with a strong 100 ka imprint. However, there are no detailed studies that focus on the glacial/interglacial transitions (i.e. Terminations) that define 100 ka Quaternary ice-age cycles. Here we present a high-resolution record of terrestrial long chain n-alkanes (C21 to C33) from MIS 3 to MIS 11 in order to monitor changes in the sediments deposited on the upper slope of the Gulf of Lions with the aim to provide new insight into the climatic events occurring during Terminations in the western Mediterranean Sea. Principal component analysis grouped n-alkane on the basis of the degree of maturation of organic matter (fresh/degraded) that allowed to monitor past variability in the source of the sediment deposited in the upper slope as a consequence of sea level and climate change. This information was used to estimate the impact that northern ice-sheet variability had on the western Mediterranean basin. As sea level started to fall, fresh terrestrial organic matter increased owing to the seaward migration of Rhone's mouth. Simultaneously, the decrease in sea level exposed old and reworked organic material from the Rhone's catchment, including the delta plain and the continental shelf, that was eroded and transported into our study site. This resulted in an increase in the proportion of degraded terrestrial organic matter together with sea level decrease. Aside from sea level changes, the proportion of fresh vs degraded organic matter seems to be affected by the amount of continental runoff, with an increasing proportion of fresh terrestrial organic matter occurring at times of reduced continental runoff. During the last glacial, the increase of fresh terrestrial organic matter was contemporaneous with Heinrich ... Dataset Ice Sheet PANGAEA - Data Publisher for Earth & Environmental Science Rhone ENVELOPE(158.733,158.733,-79.983,-79.983) ENVELOPE(3.837669,3.837669,42.689809,42.689809) |