Experimental Verifications of Abnormal Chlorinity appearing in Natural Deep-Sea Gas Hydrate
The chloride anion is known to be the most abundant salt ion in sea water. At the regions such as ODP Sites 1249 and 1250 the highly enriched chloride concentration is observed in a zone extended from near the sediment surface (~1 mbsf) to depths about 25 mbsf. Here, we designed the in-situ electric...
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ftunivbritcolcir:oai:circle.library.ubc.ca:2429/1154 2023-05-15T17:11:51+02:00 Experimental Verifications of Abnormal Chlorinity appearing in Natural Deep-Sea Gas Hydrate Seol, Jiwoong Koh, Dongyeon Cha, Minjun Lee, Huen Lee, Youngjoo Kim, Jihoon University of British Columbia. Department of Chemical and Biological Engineering International Conference on Gas Hydrates (6th : 2008 : Vancouver, B.C.) 2008-07 114433 bytes application/pdf http://hdl.handle.net/2429/1154 eng eng Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ Seol, Jiwoong Koh, Dongyeon Cha, Minjun Lee, Huen Lee, Youngjoo Kim, Jihoon CC-BY-NC-ND Gas hydrates Chlorinity Chlorinity enrichment Clay SEM Text Conference Paper 2008 ftunivbritcolcir 2019-10-15T17:43:39Z The chloride anion is known to be the most abundant salt ion in sea water. At the regions such as ODP Sites 1249 and 1250 the highly enriched chloride concentration is observed in a zone extended from near the sediment surface (~1 mbsf) to depths about 25 mbsf. Here, we designed the in-situ electric circuit system for measuring chloride concentration within reliable accuracy. In the cylindrical cell the 5-10 tubes having holes on the wall and electrodes were equipped around clay mixture. The open holes were made to regulate to a certain degree the interface area between methane gas and clay sample. As may be anticipated, the chloride concentration abnormally increased under fast rate condition for forming methane hydrate, but no noticeable concentration change was detected under relatively low rate. In fact, the present experiment seems to be a lot deficient to investigate the ion diffusion and moreover does not fully reflect the real deep-sea floor condition, but the meaningful results for describing the abnormal salinity enrichment might be drawn. The physical effects of chloride anions on surface morphologies of methane hydrate formed in the sediments were additionally examined with the Field Emission-Scanning Electronic Microscope (FE-SEM). Non UBC Unreviewed Conference Object Methane hydrate University of British Columbia: cIRcle - UBC's Information Repository |
institution |
Open Polar |
collection |
University of British Columbia: cIRcle - UBC's Information Repository |
op_collection_id |
ftunivbritcolcir |
language |
English |
topic |
Gas hydrates Chlorinity Chlorinity enrichment Clay SEM |
spellingShingle |
Gas hydrates Chlorinity Chlorinity enrichment Clay SEM Seol, Jiwoong Koh, Dongyeon Cha, Minjun Lee, Huen Lee, Youngjoo Kim, Jihoon Experimental Verifications of Abnormal Chlorinity appearing in Natural Deep-Sea Gas Hydrate |
topic_facet |
Gas hydrates Chlorinity Chlorinity enrichment Clay SEM |
description |
The chloride anion is known to be the most abundant salt ion in sea water. At the regions such as ODP Sites 1249 and 1250 the highly enriched chloride concentration is observed in a zone extended from near the sediment surface (~1 mbsf) to depths about 25 mbsf. Here, we designed the in-situ electric circuit system for measuring chloride concentration within reliable accuracy. In the cylindrical cell the 5-10 tubes having holes on the wall and electrodes were equipped around clay mixture. The open holes were made to regulate to a certain degree the interface area between methane gas and clay sample. As may be anticipated, the chloride concentration abnormally increased under fast rate condition for forming methane hydrate, but no noticeable concentration change was detected under relatively low rate. In fact, the present experiment seems to be a lot deficient to investigate the ion diffusion and moreover does not fully reflect the real deep-sea floor condition, but the meaningful results for describing the abnormal salinity enrichment might be drawn. The physical effects of chloride anions on surface morphologies of methane hydrate formed in the sediments were additionally examined with the Field Emission-Scanning Electronic Microscope (FE-SEM). Non UBC Unreviewed |
author2 |
University of British Columbia. Department of Chemical and Biological Engineering International Conference on Gas Hydrates (6th : 2008 : Vancouver, B.C.) |
format |
Conference Object |
author |
Seol, Jiwoong Koh, Dongyeon Cha, Minjun Lee, Huen Lee, Youngjoo Kim, Jihoon |
author_facet |
Seol, Jiwoong Koh, Dongyeon Cha, Minjun Lee, Huen Lee, Youngjoo Kim, Jihoon |
author_sort |
Seol, Jiwoong |
title |
Experimental Verifications of Abnormal Chlorinity appearing in Natural Deep-Sea Gas Hydrate |
title_short |
Experimental Verifications of Abnormal Chlorinity appearing in Natural Deep-Sea Gas Hydrate |
title_full |
Experimental Verifications of Abnormal Chlorinity appearing in Natural Deep-Sea Gas Hydrate |
title_fullStr |
Experimental Verifications of Abnormal Chlorinity appearing in Natural Deep-Sea Gas Hydrate |
title_full_unstemmed |
Experimental Verifications of Abnormal Chlorinity appearing in Natural Deep-Sea Gas Hydrate |
title_sort |
experimental verifications of abnormal chlorinity appearing in natural deep-sea gas hydrate |
publishDate |
2008 |
url |
http://hdl.handle.net/2429/1154 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_rights |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ Seol, Jiwoong Koh, Dongyeon Cha, Minjun Lee, Huen Lee, Youngjoo Kim, Jihoon |
op_rightsnorm |
CC-BY-NC-ND |
_version_ |
1766068604559687680 |