Clay mineral evidence of nepheloids contribution to the Heinrich layers in the North West Atlantic.
The clay fraction of four cores drilled in the north Atlantic Ocean was studied at a very high resolution over the last 150 ka in order to record the mineralogical signature of Heinrich events. Factor analysis of clay mineralogy establishes that three independent factors represent the main variation...
Published in: | Palaeogeography, Palaeoclimatology, Palaeoecology |
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1998
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Online Access: | https://research.vu.nl/en/publications/9d9079e0-aca8-4555-b7e3-9e0035c21427 https://doi.org/10.1016/S0031-0182(98)00137-0 |
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ftvuamstcris:oai:research.vu.nl:publications/9d9079e0-aca8-4555-b7e3-9e0035c21427 2024-06-02T08:11:31+00:00 Clay mineral evidence of nepheloids contribution to the Heinrich layers in the North West Atlantic. Bout-Roumazeilles, V. Cortijo, E. Vidal, L. Labeyrie, L. Debrabant, P. 1998 https://research.vu.nl/en/publications/9d9079e0-aca8-4555-b7e3-9e0035c21427 https://doi.org/10.1016/S0031-0182(98)00137-0 eng eng https://research.vu.nl/en/publications/9d9079e0-aca8-4555-b7e3-9e0035c21427 info:eu-repo/semantics/closedAccess Bout-Roumazeilles , V , Cortijo , E , Vidal , L , Labeyrie , L & Debrabant , P 1998 , ' Clay mineral evidence of nepheloids contribution to the Heinrich layers in the North West Atlantic. ' , Palaeogeography, Palaeoclimatology, Palaeoecology , vol. 146 , no. 1-4 , pp. 211-228 . https://doi.org/10.1016/S0031-0182(98)00137-0 /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water article 1998 ftvuamstcris https://doi.org/10.1016/S0031-0182(98)00137-0 2024-05-07T03:04:26Z The clay fraction of four cores drilled in the north Atlantic Ocean was studied at a very high resolution over the last 150 ka in order to record the mineralogical signature of Heinrich events. Factor analysis of clay mineralogy establishes that three independent factors represent the main variations: a 'detrital factor' (illite + chlorite + kaolinite), a 'smectite factor', and a 'mixed-layer factor' (IVML: illite-vermiculite mixed-layered clay). The clay mineral fraction of Core SU90-38 drilled in the northeastern Atlantic basin did not record any Heinrich event, whereas large changes in the clay mineral fraction occurred during Heinrich events HI, H2, H4, and H5 in the three cores from the northwestern atlantic basin (cores SU90-08, SU90-11, and SU90-12). Heinrich layers are characterized by increases in the detrital factor in cores SU90-08 and SU90-11, and sharp increases in the mixed-layer factor in cores SU90-11 and SU90-12. The geographical setting of the Cores, the pattern of surface, intermediate and deep water circulation, and the main sources of clay minerals allow recognition of two major mechanisms involved in the deposition of the Heinrich Layers: (1) an increased supply of detrital clay minerals by the icebergs; and (2) a specific input of illite-vermiculite mixed-layer clay minerals by a nepheloid layer. Article in Journal/Newspaper North Atlantic North West Atlantic Vrije Universiteit Amsterdam (VU): Research Portal Palaeogeography, Palaeoclimatology, Palaeoecology 146 1-4 211 228 |
institution |
Open Polar |
collection |
Vrije Universiteit Amsterdam (VU): Research Portal |
op_collection_id |
ftvuamstcris |
language |
English |
topic |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
spellingShingle |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Bout-Roumazeilles, V. Cortijo, E. Vidal, L. Labeyrie, L. Debrabant, P. Clay mineral evidence of nepheloids contribution to the Heinrich layers in the North West Atlantic. |
topic_facet |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
description |
The clay fraction of four cores drilled in the north Atlantic Ocean was studied at a very high resolution over the last 150 ka in order to record the mineralogical signature of Heinrich events. Factor analysis of clay mineralogy establishes that three independent factors represent the main variations: a 'detrital factor' (illite + chlorite + kaolinite), a 'smectite factor', and a 'mixed-layer factor' (IVML: illite-vermiculite mixed-layered clay). The clay mineral fraction of Core SU90-38 drilled in the northeastern Atlantic basin did not record any Heinrich event, whereas large changes in the clay mineral fraction occurred during Heinrich events HI, H2, H4, and H5 in the three cores from the northwestern atlantic basin (cores SU90-08, SU90-11, and SU90-12). Heinrich layers are characterized by increases in the detrital factor in cores SU90-08 and SU90-11, and sharp increases in the mixed-layer factor in cores SU90-11 and SU90-12. The geographical setting of the Cores, the pattern of surface, intermediate and deep water circulation, and the main sources of clay minerals allow recognition of two major mechanisms involved in the deposition of the Heinrich Layers: (1) an increased supply of detrital clay minerals by the icebergs; and (2) a specific input of illite-vermiculite mixed-layer clay minerals by a nepheloid layer. |
format |
Article in Journal/Newspaper |
author |
Bout-Roumazeilles, V. Cortijo, E. Vidal, L. Labeyrie, L. Debrabant, P. |
author_facet |
Bout-Roumazeilles, V. Cortijo, E. Vidal, L. Labeyrie, L. Debrabant, P. |
author_sort |
Bout-Roumazeilles, V. |
title |
Clay mineral evidence of nepheloids contribution to the Heinrich layers in the North West Atlantic. |
title_short |
Clay mineral evidence of nepheloids contribution to the Heinrich layers in the North West Atlantic. |
title_full |
Clay mineral evidence of nepheloids contribution to the Heinrich layers in the North West Atlantic. |
title_fullStr |
Clay mineral evidence of nepheloids contribution to the Heinrich layers in the North West Atlantic. |
title_full_unstemmed |
Clay mineral evidence of nepheloids contribution to the Heinrich layers in the North West Atlantic. |
title_sort |
clay mineral evidence of nepheloids contribution to the heinrich layers in the north west atlantic. |
publishDate |
1998 |
url |
https://research.vu.nl/en/publications/9d9079e0-aca8-4555-b7e3-9e0035c21427 https://doi.org/10.1016/S0031-0182(98)00137-0 |
genre |
North Atlantic North West Atlantic |
genre_facet |
North Atlantic North West Atlantic |
op_source |
Bout-Roumazeilles , V , Cortijo , E , Vidal , L , Labeyrie , L & Debrabant , P 1998 , ' Clay mineral evidence of nepheloids contribution to the Heinrich layers in the North West Atlantic. ' , Palaeogeography, Palaeoclimatology, Palaeoecology , vol. 146 , no. 1-4 , pp. 211-228 . https://doi.org/10.1016/S0031-0182(98)00137-0 |
op_relation |
https://research.vu.nl/en/publications/9d9079e0-aca8-4555-b7e3-9e0035c21427 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/S0031-0182(98)00137-0 |
container_title |
Palaeogeography, Palaeoclimatology, Palaeoecology |
container_volume |
146 |
container_issue |
1-4 |
container_start_page |
211 |
op_container_end_page |
228 |
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1800757686299525120 |