Concentration of the pore water ions and grain size of bottom sediments and subsea permafrost from the Buor-Khaya Bay
This set contains a data on ionic composition of the interstitial water of bottom sediments and subsea permafrost as an indicator of the sedimentation and sea water spreading within thawed strata. Based on measurements of concentration of sodium (Na+), potassium (K+), calcium (Ca2+), and magnesium (...
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ftsmithonian:oai:figshare.com:article/14264687 2023-05-15T14:29:16+02:00 Concentration of the pore water ions and grain size of bottom sediments and subsea permafrost from the Buor-Khaya Bay Alexander Ulyantsev (10340783) Natalya Polyakova (10346162) Ivan Trukhin (10346165) Yulia Parotkina (10346168) Svetlana Bratskaya (1699336) 2021-01-21T14:11:40Z https://doi.org/10.17632/y6y6cg94dw.1 unknown https://figshare.com/articles/dataset/Concentration_of_the_pore_water_ions_and_grain_size_of_bottom_sediments_and_subsea_permafrost_from_the_Buor-Khaya_Bay/14264687 doi:10.17632/y6y6cg94dw.1 CC BY 4.0 CC-BY Sediment Geochemistry Arctic Ocean Pore Water Permafrost Grain Size Dataset 2021 ftsmithonian https://doi.org/10.17632/y6y6cg94dw.1 2021-03-23T16:01:09Z This set contains a data on ionic composition of the interstitial water of bottom sediments and subsea permafrost as an indicator of the sedimentation and sea water spreading within thawed strata. Based on measurements of concentration of sodium (Na+), potassium (K+), calcium (Ca2+), and magnesium (Mg2+) cations, chlorides (Cl–) and sulphates (SO42–) in water extracts from bottom sediments and subsea permafrost deposits from three boreholes a spatial difference in salinisation dynamics of thawed strata within the Buor-Khaya Bay was shown. A significant difference between permafrost and unfrozen sections was recorded. The vertical pattern of the macroions in the unfrozen segment was formed under the influence of subsea thawing of permafrost, while the permafrost section was formed under freshwater conditions and evolved under the thawing, and consequent sea water spreading. The significant compositional irregularity of ionic compositional patterns in the thawed deposits is caused by differences in the particle size of sediments and hydrodynamics of the Arctic basin, and also can be explained by Quaternary eustatic events on the East Siberian Arctic shelf. Lithology, grain size and hydrological regime were considered to be the most important factors controlling concentration of sea water salt to thawed sediments. Over the roof of subsea permafrost in the Ivashkina Lagoon, the pronounced salinity maximum (50 g/L of Cl–) of interstitial water was observed. Consisting of moss debris, this segment promotes the accumulation of dissolved pore water compounds due to its high porosity and subsequent thawing of frozen rock. Dataset Arctic Basin Arctic Arctic Ocean permafrost Unknown Arctic Arctic Ocean Khaya ENVELOPE(135.167,135.167,60.567,60.567) Buor-Khaya ENVELOPE(127.803,127.803,72.287,72.287) |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftsmithonian |
language |
unknown |
topic |
Sediment Geochemistry Arctic Ocean Pore Water Permafrost Grain Size |
spellingShingle |
Sediment Geochemistry Arctic Ocean Pore Water Permafrost Grain Size Alexander Ulyantsev (10340783) Natalya Polyakova (10346162) Ivan Trukhin (10346165) Yulia Parotkina (10346168) Svetlana Bratskaya (1699336) Concentration of the pore water ions and grain size of bottom sediments and subsea permafrost from the Buor-Khaya Bay |
topic_facet |
Sediment Geochemistry Arctic Ocean Pore Water Permafrost Grain Size |
description |
This set contains a data on ionic composition of the interstitial water of bottom sediments and subsea permafrost as an indicator of the sedimentation and sea water spreading within thawed strata. Based on measurements of concentration of sodium (Na+), potassium (K+), calcium (Ca2+), and magnesium (Mg2+) cations, chlorides (Cl–) and sulphates (SO42–) in water extracts from bottom sediments and subsea permafrost deposits from three boreholes a spatial difference in salinisation dynamics of thawed strata within the Buor-Khaya Bay was shown. A significant difference between permafrost and unfrozen sections was recorded. The vertical pattern of the macroions in the unfrozen segment was formed under the influence of subsea thawing of permafrost, while the permafrost section was formed under freshwater conditions and evolved under the thawing, and consequent sea water spreading. The significant compositional irregularity of ionic compositional patterns in the thawed deposits is caused by differences in the particle size of sediments and hydrodynamics of the Arctic basin, and also can be explained by Quaternary eustatic events on the East Siberian Arctic shelf. Lithology, grain size and hydrological regime were considered to be the most important factors controlling concentration of sea water salt to thawed sediments. Over the roof of subsea permafrost in the Ivashkina Lagoon, the pronounced salinity maximum (50 g/L of Cl–) of interstitial water was observed. Consisting of moss debris, this segment promotes the accumulation of dissolved pore water compounds due to its high porosity and subsequent thawing of frozen rock. |
format |
Dataset |
author |
Alexander Ulyantsev (10340783) Natalya Polyakova (10346162) Ivan Trukhin (10346165) Yulia Parotkina (10346168) Svetlana Bratskaya (1699336) |
author_facet |
Alexander Ulyantsev (10340783) Natalya Polyakova (10346162) Ivan Trukhin (10346165) Yulia Parotkina (10346168) Svetlana Bratskaya (1699336) |
author_sort |
Alexander Ulyantsev (10340783) |
title |
Concentration of the pore water ions and grain size of bottom sediments and subsea permafrost from the Buor-Khaya Bay |
title_short |
Concentration of the pore water ions and grain size of bottom sediments and subsea permafrost from the Buor-Khaya Bay |
title_full |
Concentration of the pore water ions and grain size of bottom sediments and subsea permafrost from the Buor-Khaya Bay |
title_fullStr |
Concentration of the pore water ions and grain size of bottom sediments and subsea permafrost from the Buor-Khaya Bay |
title_full_unstemmed |
Concentration of the pore water ions and grain size of bottom sediments and subsea permafrost from the Buor-Khaya Bay |
title_sort |
concentration of the pore water ions and grain size of bottom sediments and subsea permafrost from the buor-khaya bay |
publishDate |
2021 |
url |
https://doi.org/10.17632/y6y6cg94dw.1 |
long_lat |
ENVELOPE(135.167,135.167,60.567,60.567) ENVELOPE(127.803,127.803,72.287,72.287) |
geographic |
Arctic Arctic Ocean Khaya Buor-Khaya |
geographic_facet |
Arctic Arctic Ocean Khaya Buor-Khaya |
genre |
Arctic Basin Arctic Arctic Ocean permafrost |
genre_facet |
Arctic Basin Arctic Arctic Ocean permafrost |
op_relation |
https://figshare.com/articles/dataset/Concentration_of_the_pore_water_ions_and_grain_size_of_bottom_sediments_and_subsea_permafrost_from_the_Buor-Khaya_Bay/14264687 doi:10.17632/y6y6cg94dw.1 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.17632/y6y6cg94dw.1 |
_version_ |
1766303328037240832 |