Silicate in marine sediments from the Emerland Basin, North Atlantic, supplement to: Andrews, Daniel; Hargrave, B T (1984): Close interval sampling of interstitial silicate and porosity in marine sediments. Geochimica et Cosmochimica Acta, 48(4), 711-722
A method was developed to measure porosity and dissolved interstitial silicate at millimeter intervals or less in a sediment core. In cores from Emerald Basin (Scotian Shelf), interstitial concentrations near the sediment surface did not drop rapidly to bottom-water concentrations as measured in bot...
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ftdatacite:10.1594/pangaea.735060 2023-05-15T17:33:22+02:00 Silicate in marine sediments from the Emerland Basin, North Atlantic, supplement to: Andrews, Daniel; Hargrave, B T (1984): Close interval sampling of interstitial silicate and porosity in marine sediments. Geochimica et Cosmochimica Acta, 48(4), 711-722 Andrews, Daniel Hargrave, B T 1984 application/zip https://dx.doi.org/10.1594/pangaea.735060 https://doi.pangaea.de/10.1594/PANGAEA.735060 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1016/0016-7037(84)90097-8 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Core Silicon Cycling in the World Ocean SINOPS Supplementary Collection of Datasets Collection article 1984 ftdatacite https://doi.org/10.1594/pangaea.735060 https://doi.org/10.1016/0016-7037(84)90097-8 2022-02-08T16:24:46Z A method was developed to measure porosity and dissolved interstitial silicate at millimeter intervals or less in a sediment core. In cores from Emerald Basin (Scotian Shelf), interstitial concentrations near the sediment surface did not drop rapidly to bottom-water concentrations as measured in bottle casts (28 µM) but remained as high as 166 µM in the upper 0.5 mm of sediment High rates of benthic silicate release were measured which could not be accounted for by interstitial concentration gradients or by ventilation of macro-invertebrate burrows. The silicate discontinuity observed between the sediments and water column suggests that a diffusive sublayer exists in a zone of viscous flow above the sediment surface. This is possible only if a surface reaction is primarily responsible for silicate release. By assuming a linear concentration gradient across this diffusive sublayer, the silicate release rates were used to estimate the thickness of the sublayer to be about 2 mm. Article in Journal/Newspaper North Atlantic DataCite Metadata Store (German National Library of Science and Technology) Burrows ENVELOPE(163.650,163.650,-74.300,-74.300) Emerald Basin ENVELOPE(162.500,162.500,-54.000,-54.000) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Core Silicon Cycling in the World Ocean SINOPS |
spellingShingle |
Core Silicon Cycling in the World Ocean SINOPS Andrews, Daniel Hargrave, B T Silicate in marine sediments from the Emerland Basin, North Atlantic, supplement to: Andrews, Daniel; Hargrave, B T (1984): Close interval sampling of interstitial silicate and porosity in marine sediments. Geochimica et Cosmochimica Acta, 48(4), 711-722 |
topic_facet |
Core Silicon Cycling in the World Ocean SINOPS |
description |
A method was developed to measure porosity and dissolved interstitial silicate at millimeter intervals or less in a sediment core. In cores from Emerald Basin (Scotian Shelf), interstitial concentrations near the sediment surface did not drop rapidly to bottom-water concentrations as measured in bottle casts (28 µM) but remained as high as 166 µM in the upper 0.5 mm of sediment High rates of benthic silicate release were measured which could not be accounted for by interstitial concentration gradients or by ventilation of macro-invertebrate burrows. The silicate discontinuity observed between the sediments and water column suggests that a diffusive sublayer exists in a zone of viscous flow above the sediment surface. This is possible only if a surface reaction is primarily responsible for silicate release. By assuming a linear concentration gradient across this diffusive sublayer, the silicate release rates were used to estimate the thickness of the sublayer to be about 2 mm. |
format |
Article in Journal/Newspaper |
author |
Andrews, Daniel Hargrave, B T |
author_facet |
Andrews, Daniel Hargrave, B T |
author_sort |
Andrews, Daniel |
title |
Silicate in marine sediments from the Emerland Basin, North Atlantic, supplement to: Andrews, Daniel; Hargrave, B T (1984): Close interval sampling of interstitial silicate and porosity in marine sediments. Geochimica et Cosmochimica Acta, 48(4), 711-722 |
title_short |
Silicate in marine sediments from the Emerland Basin, North Atlantic, supplement to: Andrews, Daniel; Hargrave, B T (1984): Close interval sampling of interstitial silicate and porosity in marine sediments. Geochimica et Cosmochimica Acta, 48(4), 711-722 |
title_full |
Silicate in marine sediments from the Emerland Basin, North Atlantic, supplement to: Andrews, Daniel; Hargrave, B T (1984): Close interval sampling of interstitial silicate and porosity in marine sediments. Geochimica et Cosmochimica Acta, 48(4), 711-722 |
title_fullStr |
Silicate in marine sediments from the Emerland Basin, North Atlantic, supplement to: Andrews, Daniel; Hargrave, B T (1984): Close interval sampling of interstitial silicate and porosity in marine sediments. Geochimica et Cosmochimica Acta, 48(4), 711-722 |
title_full_unstemmed |
Silicate in marine sediments from the Emerland Basin, North Atlantic, supplement to: Andrews, Daniel; Hargrave, B T (1984): Close interval sampling of interstitial silicate and porosity in marine sediments. Geochimica et Cosmochimica Acta, 48(4), 711-722 |
title_sort |
silicate in marine sediments from the emerland basin, north atlantic, supplement to: andrews, daniel; hargrave, b t (1984): close interval sampling of interstitial silicate and porosity in marine sediments. geochimica et cosmochimica acta, 48(4), 711-722 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
1984 |
url |
https://dx.doi.org/10.1594/pangaea.735060 https://doi.pangaea.de/10.1594/PANGAEA.735060 |
long_lat |
ENVELOPE(163.650,163.650,-74.300,-74.300) ENVELOPE(162.500,162.500,-54.000,-54.000) |
geographic |
Burrows Emerald Basin |
geographic_facet |
Burrows Emerald Basin |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://dx.doi.org/10.1016/0016-7037(84)90097-8 |
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.735060 https://doi.org/10.1016/0016-7037(84)90097-8 |
_version_ |
1766131847711948800 |