Grain-size distributions, End-member modelling and Th-fluxes of South Atlantic surface sediments
We present the characteristics of the lithogenic components of seafloor surface sediments covering the entire South Atlantic Ocean (from the equator to Antarctica). These samples were collected by multiple seagoing expeditions between 1988 and 2005. By using end-member modelling on the multi-modal g...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.961706 2024-06-02T07:57:42+00:00 Grain-size distributions, End-member modelling and Th-fluxes of South Atlantic surface sediments van der Does, Michèlle Lamy, Frank Krätschmer, Stephan Stuut, Jan-Berend W Völker, Christoph Werner, Martin Winckler, Gisela MEDIAN LATITUDE: -40.264187 * MEDIAN LONGITUDE: -7.197832 * SOUTH-BOUND LATITUDE: -69.889000 * WEST-BOUND LONGITUDE: -56.810000 * NORTH-BOUND LATITUDE: 0.100000 * EAST-BOUND LONGITUDE: 28.546670 * DATE/TIME START: 1988-03-04T00:00:00 * DATE/TIME END: 2005-05-14T07:09:00 2023 application/zip, 4 datasets https://doi.pangaea.de/10.1594/PANGAEA.961706 https://doi.org/10.1594/PANGAEA.961706 en eng PANGAEA van der Does, Michèlle; Lamy, Frank; Krätschmer, Stephan; Stuut, Jan-Berend W; Völker, Christoph; Werner, Martin; Schwarz, Roseanne; Fleisher, Marty; Winckler, Gisela (2024): Late Holocene Dust Deposition Fluxes Over the Entire South Atlantic Ocean. Geochemistry, Geophysics, Geosystems, 25(1), e2023GC011105, https://doi.org/10.1029/2023GC011105 https://doi.pangaea.de/10.1594/PANGAEA.961706 https://doi.org/10.1594/PANGAEA.961706 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess dust Dust flux end-member modelling grain size distribution IRD Particle size distribution South Atlantic thorium normalization Dataset 2023 ftpangaea https://doi.org/10.1594/PANGAEA.96170610.1029/2023GC011105 2024-05-07T23:45:53Z We present the characteristics of the lithogenic components of seafloor surface sediments covering the entire South Atlantic Ocean (from the equator to Antarctica). These samples were collected by multiple seagoing expeditions between 1988 and 2005. By using end-member modelling on the multi-modal grain-size distributions, we decomposed the lithogenic fraction into a fine- and coarse-grained dust component, current-sorted sediments and IRD. By multiplying these specific components with 230Th-normalized lithogenic fluxes, we obtained specific fluxes for these four fractions. This allows us to study dust deposition over the remote open ocean more specifically. Dataset Antarc* Antarctica South Atlantic Ocean PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-56.810000,28.546670,0.100000,-69.889000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
dust Dust flux end-member modelling grain size distribution IRD Particle size distribution South Atlantic thorium normalization |
spellingShingle |
dust Dust flux end-member modelling grain size distribution IRD Particle size distribution South Atlantic thorium normalization van der Does, Michèlle Lamy, Frank Krätschmer, Stephan Stuut, Jan-Berend W Völker, Christoph Werner, Martin Winckler, Gisela Grain-size distributions, End-member modelling and Th-fluxes of South Atlantic surface sediments |
topic_facet |
dust Dust flux end-member modelling grain size distribution IRD Particle size distribution South Atlantic thorium normalization |
description |
We present the characteristics of the lithogenic components of seafloor surface sediments covering the entire South Atlantic Ocean (from the equator to Antarctica). These samples were collected by multiple seagoing expeditions between 1988 and 2005. By using end-member modelling on the multi-modal grain-size distributions, we decomposed the lithogenic fraction into a fine- and coarse-grained dust component, current-sorted sediments and IRD. By multiplying these specific components with 230Th-normalized lithogenic fluxes, we obtained specific fluxes for these four fractions. This allows us to study dust deposition over the remote open ocean more specifically. |
format |
Dataset |
author |
van der Does, Michèlle Lamy, Frank Krätschmer, Stephan Stuut, Jan-Berend W Völker, Christoph Werner, Martin Winckler, Gisela |
author_facet |
van der Does, Michèlle Lamy, Frank Krätschmer, Stephan Stuut, Jan-Berend W Völker, Christoph Werner, Martin Winckler, Gisela |
author_sort |
van der Does, Michèlle |
title |
Grain-size distributions, End-member modelling and Th-fluxes of South Atlantic surface sediments |
title_short |
Grain-size distributions, End-member modelling and Th-fluxes of South Atlantic surface sediments |
title_full |
Grain-size distributions, End-member modelling and Th-fluxes of South Atlantic surface sediments |
title_fullStr |
Grain-size distributions, End-member modelling and Th-fluxes of South Atlantic surface sediments |
title_full_unstemmed |
Grain-size distributions, End-member modelling and Th-fluxes of South Atlantic surface sediments |
title_sort |
grain-size distributions, end-member modelling and th-fluxes of south atlantic surface sediments |
publisher |
PANGAEA |
publishDate |
2023 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.961706 https://doi.org/10.1594/PANGAEA.961706 |
op_coverage |
MEDIAN LATITUDE: -40.264187 * MEDIAN LONGITUDE: -7.197832 * SOUTH-BOUND LATITUDE: -69.889000 * WEST-BOUND LONGITUDE: -56.810000 * NORTH-BOUND LATITUDE: 0.100000 * EAST-BOUND LONGITUDE: 28.546670 * DATE/TIME START: 1988-03-04T00:00:00 * DATE/TIME END: 2005-05-14T07:09:00 |
long_lat |
ENVELOPE(-56.810000,28.546670,0.100000,-69.889000) |
genre |
Antarc* Antarctica South Atlantic Ocean |
genre_facet |
Antarc* Antarctica South Atlantic Ocean |
op_relation |
van der Does, Michèlle; Lamy, Frank; Krätschmer, Stephan; Stuut, Jan-Berend W; Völker, Christoph; Werner, Martin; Schwarz, Roseanne; Fleisher, Marty; Winckler, Gisela (2024): Late Holocene Dust Deposition Fluxes Over the Entire South Atlantic Ocean. Geochemistry, Geophysics, Geosystems, 25(1), e2023GC011105, https://doi.org/10.1029/2023GC011105 https://doi.pangaea.de/10.1594/PANGAEA.961706 https://doi.org/10.1594/PANGAEA.961706 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.96170610.1029/2023GC011105 |
_version_ |
1800740888581767168 |