Massive deposition of Sahelian dust on the Canary Island Lanzarote during North Atlantic Heinrich Events
New IRSL ages of eolianites close to Muñique (Lanzarote) demonstrate the influence of millennial scale climatic variability on the sedimentary dynamics on the Canary Islands during the last glacial cycle. The repetitive succession of interstadial and stadial climatic conditions formed multiple seque...
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Language: | English |
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Cambridge Univ. Pr.
2021
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Online Access: | https://oceanrep.geomar.de/id/eprint/52602/ https://oceanrep.geomar.de/id/eprint/52602/3/10.1017_qua.2020.100.pdf https://oceanrep.geomar.de/id/eprint/52602/1/S0033589420001003sup001.docx https://oceanrep.geomar.de/id/eprint/52602/2/S0033589420001003sup002.docx https://doi.org/10.1017/qua.2020.100 |
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ftoceanrep:oai:oceanrep.geomar.de:52602 2024-02-11T10:01:22+01:00 Massive deposition of Sahelian dust on the Canary Island Lanzarote during North Atlantic Heinrich Events Heinrich, Hartmut Schmidt, Christoph Ziemen, Florian Mikolajewicz, Uwe Roettig, Christopher-Bastian 2021-01-19 text https://oceanrep.geomar.de/id/eprint/52602/ https://oceanrep.geomar.de/id/eprint/52602/3/10.1017_qua.2020.100.pdf https://oceanrep.geomar.de/id/eprint/52602/1/S0033589420001003sup001.docx https://oceanrep.geomar.de/id/eprint/52602/2/S0033589420001003sup002.docx https://doi.org/10.1017/qua.2020.100 en eng Cambridge Univ. Pr. https://oceanrep.geomar.de/id/eprint/52602/3/10.1017_qua.2020.100.pdf https://oceanrep.geomar.de/id/eprint/52602/1/S0033589420001003sup001.docx https://oceanrep.geomar.de/id/eprint/52602/2/S0033589420001003sup002.docx Heinrich, H. , Schmidt, C., Ziemen, F., Mikolajewicz, U. and Roettig, C. B. (2021) Massive deposition of Sahelian dust on the Canary Island Lanzarote during North Atlantic Heinrich Events. Quaternary Research, 101 . pp. 51-66. DOI 10.1017/qua.2020.100 <https://doi.org/10.1017/qua.2020.100>. doi:10.1017/qua.2020.100 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 2021 ftoceanrep https://doi.org/10.1017/qua.2020.100 2024-01-15T00:23:30Z New IRSL ages of eolianites close to Muñique (Lanzarote) demonstrate the influence of millennial scale climatic variability on the sedimentary dynamics on the Canary Islands during the last glacial cycle. The repetitive succession of interstadial and stadial climatic conditions formed multiple sequences of eolian deposits, each in general comprising three depositional types. DepoType 1 and DepoType 2 consist mainly of marine biogenic carbonate detritus with small amounts of dust from the Sahara representing interstadial conditions. DepoType 2 compared to DepoType 1 is characterized by larger amounts of land snails and calcified brood cells. A DepoType 3 rich in dust from African subtropical/tropical Latisols terminates a sequence. IRSL dating on DepoType 3 type deposits clearly shows that these were deposited during Heinrich Events under stadial conditions. The stadial cooling of the North Atlantic Ocean caused a southern shift of climate zones that culminated during Heinrich Events when the arctic climate reaches its most southerly extent. As a consequence, atmospheric changes led to massive dust supply from the then-dry Sahel. The increase in dust and precipitation from the dry DepoTypes 1 to the more humid DepoTypes 3 originates from a modified atmospheric dynamic during a millennial cycle. Article in Journal/Newspaper Arctic North Atlantic OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Arctic Quaternary Research 101 51 66 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
New IRSL ages of eolianites close to Muñique (Lanzarote) demonstrate the influence of millennial scale climatic variability on the sedimentary dynamics on the Canary Islands during the last glacial cycle. The repetitive succession of interstadial and stadial climatic conditions formed multiple sequences of eolian deposits, each in general comprising three depositional types. DepoType 1 and DepoType 2 consist mainly of marine biogenic carbonate detritus with small amounts of dust from the Sahara representing interstadial conditions. DepoType 2 compared to DepoType 1 is characterized by larger amounts of land snails and calcified brood cells. A DepoType 3 rich in dust from African subtropical/tropical Latisols terminates a sequence. IRSL dating on DepoType 3 type deposits clearly shows that these were deposited during Heinrich Events under stadial conditions. The stadial cooling of the North Atlantic Ocean caused a southern shift of climate zones that culminated during Heinrich Events when the arctic climate reaches its most southerly extent. As a consequence, atmospheric changes led to massive dust supply from the then-dry Sahel. The increase in dust and precipitation from the dry DepoTypes 1 to the more humid DepoTypes 3 originates from a modified atmospheric dynamic during a millennial cycle. |
format |
Article in Journal/Newspaper |
author |
Heinrich, Hartmut Schmidt, Christoph Ziemen, Florian Mikolajewicz, Uwe Roettig, Christopher-Bastian |
spellingShingle |
Heinrich, Hartmut Schmidt, Christoph Ziemen, Florian Mikolajewicz, Uwe Roettig, Christopher-Bastian Massive deposition of Sahelian dust on the Canary Island Lanzarote during North Atlantic Heinrich Events |
author_facet |
Heinrich, Hartmut Schmidt, Christoph Ziemen, Florian Mikolajewicz, Uwe Roettig, Christopher-Bastian |
author_sort |
Heinrich, Hartmut |
title |
Massive deposition of Sahelian dust on the Canary Island Lanzarote during North Atlantic Heinrich Events |
title_short |
Massive deposition of Sahelian dust on the Canary Island Lanzarote during North Atlantic Heinrich Events |
title_full |
Massive deposition of Sahelian dust on the Canary Island Lanzarote during North Atlantic Heinrich Events |
title_fullStr |
Massive deposition of Sahelian dust on the Canary Island Lanzarote during North Atlantic Heinrich Events |
title_full_unstemmed |
Massive deposition of Sahelian dust on the Canary Island Lanzarote during North Atlantic Heinrich Events |
title_sort |
massive deposition of sahelian dust on the canary island lanzarote during north atlantic heinrich events |
publisher |
Cambridge Univ. Pr. |
publishDate |
2021 |
url |
https://oceanrep.geomar.de/id/eprint/52602/ https://oceanrep.geomar.de/id/eprint/52602/3/10.1017_qua.2020.100.pdf https://oceanrep.geomar.de/id/eprint/52602/1/S0033589420001003sup001.docx https://oceanrep.geomar.de/id/eprint/52602/2/S0033589420001003sup002.docx https://doi.org/10.1017/qua.2020.100 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic North Atlantic |
genre_facet |
Arctic North Atlantic |
op_relation |
https://oceanrep.geomar.de/id/eprint/52602/3/10.1017_qua.2020.100.pdf https://oceanrep.geomar.de/id/eprint/52602/1/S0033589420001003sup001.docx https://oceanrep.geomar.de/id/eprint/52602/2/S0033589420001003sup002.docx Heinrich, H. , Schmidt, C., Ziemen, F., Mikolajewicz, U. and Roettig, C. B. (2021) Massive deposition of Sahelian dust on the Canary Island Lanzarote during North Atlantic Heinrich Events. Quaternary Research, 101 . pp. 51-66. DOI 10.1017/qua.2020.100 <https://doi.org/10.1017/qua.2020.100>. doi:10.1017/qua.2020.100 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1017/qua.2020.100 |
container_title |
Quaternary Research |
container_volume |
101 |
container_start_page |
51 |
op_container_end_page |
66 |
_version_ |
1790597177691602944 |