Experimental formation of pore fluids in McMurdo Dry Valleys soils
Abstract The aim of the study was to determine if soil salt deliquescence and brine hydration can occur under laboratory conditions using natural McMurdo Dry Valleys soils. The experiment was a laboratory analogue for the formation of isolated patches of hypersaline, damp soil, referred to as ‘wet p...
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crcambridgeupr:10.1017/s0954102014000479 2024-03-03T08:39:24+00:00 Experimental formation of pore fluids in McMurdo Dry Valleys soils Levy, Joseph Fountain, Andrew Lyons, W. Berry Welch, Kathy 2014 http://dx.doi.org/10.1017/s0954102014000479 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102014000479 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 27, issue 2, page 163-171 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2014 crcambridgeupr https://doi.org/10.1017/s0954102014000479 2024-02-08T08:36:30Z Abstract The aim of the study was to determine if soil salt deliquescence and brine hydration can occur under laboratory conditions using natural McMurdo Dry Valleys soils. The experiment was a laboratory analogue for the formation of isolated patches of hypersaline, damp soil, referred to as ‘wet patches’. Soils were oven dried and then hydrated in one of two humidity chambers: one at 100% relative humidity and the second at 75% relative humidity. Soil hydration is highly variable, and over the course of 20 days of hydration, ranged from increases in water content by mass from 0–16% for 122 soil samples from Taylor Valley. The rate and absolute amount of soil hydration correlates well with the soluble salt content of the soils but not with grain size distribution. This suggests that the formation of bulk pore waters in these soils is a consequence of salt deliquescence and hydration of the brine from atmospheric water vapour. Article in Journal/Newspaper Antarctic Science McMurdo Dry Valleys Cambridge University Press McMurdo Dry Valleys Taylor Valley ENVELOPE(163.000,163.000,-77.617,-77.617) Antarctic Science 27 2 163 171 |
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Open Polar |
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Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Levy, Joseph Fountain, Andrew Lyons, W. Berry Welch, Kathy Experimental formation of pore fluids in McMurdo Dry Valleys soils |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract The aim of the study was to determine if soil salt deliquescence and brine hydration can occur under laboratory conditions using natural McMurdo Dry Valleys soils. The experiment was a laboratory analogue for the formation of isolated patches of hypersaline, damp soil, referred to as ‘wet patches’. Soils were oven dried and then hydrated in one of two humidity chambers: one at 100% relative humidity and the second at 75% relative humidity. Soil hydration is highly variable, and over the course of 20 days of hydration, ranged from increases in water content by mass from 0–16% for 122 soil samples from Taylor Valley. The rate and absolute amount of soil hydration correlates well with the soluble salt content of the soils but not with grain size distribution. This suggests that the formation of bulk pore waters in these soils is a consequence of salt deliquescence and hydration of the brine from atmospheric water vapour. |
format |
Article in Journal/Newspaper |
author |
Levy, Joseph Fountain, Andrew Lyons, W. Berry Welch, Kathy |
author_facet |
Levy, Joseph Fountain, Andrew Lyons, W. Berry Welch, Kathy |
author_sort |
Levy, Joseph |
title |
Experimental formation of pore fluids in McMurdo Dry Valleys soils |
title_short |
Experimental formation of pore fluids in McMurdo Dry Valleys soils |
title_full |
Experimental formation of pore fluids in McMurdo Dry Valleys soils |
title_fullStr |
Experimental formation of pore fluids in McMurdo Dry Valleys soils |
title_full_unstemmed |
Experimental formation of pore fluids in McMurdo Dry Valleys soils |
title_sort |
experimental formation of pore fluids in mcmurdo dry valleys soils |
publisher |
Cambridge University Press (CUP) |
publishDate |
2014 |
url |
http://dx.doi.org/10.1017/s0954102014000479 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102014000479 |
long_lat |
ENVELOPE(163.000,163.000,-77.617,-77.617) |
geographic |
McMurdo Dry Valleys Taylor Valley |
geographic_facet |
McMurdo Dry Valleys Taylor Valley |
genre |
Antarctic Science McMurdo Dry Valleys |
genre_facet |
Antarctic Science McMurdo Dry Valleys |
op_source |
Antarctic Science volume 27, issue 2, page 163-171 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102014000479 |
container_title |
Antarctic Science |
container_volume |
27 |
container_issue |
2 |
container_start_page |
163 |
op_container_end_page |
171 |
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1792494911109464064 |