Heat and fluid flux through sediment on the western flank of the Mid-Atlantic Ridge: A hydrogeological study of North Pond
A comprehensive survey of heat flow, sediment thickness and bathymetry in a large intermontane sediment pond on the western flank of the Mid‐Atlantic Ridge (North Pond) shows that only 20 to 25% of the heat escaping from the lithosphere flows through the sediments in the pond even though they comple...
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| Veröffentlicht in: | Geophysical research letters 1992-03, Vol.19 (5), p.517-520 |
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| container_title | Geophysical research letters |
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| creator | Langseth, Marcus G. Becker, Keir Von Herzen, Richard P. Schultheiss, Peter |
| description | A comprehensive survey of heat flow, sediment thickness and bathymetry in a large intermontane sediment pond on the western flank of the Mid‐Atlantic Ridge (North Pond) shows that only 20 to 25% of the heat escaping from the lithosphere flows through the sediments in the pond even though they completely cover a 70 km2 area of the seafloor. Three in situ pore‐pressure gradient measurements gave values that were negative relative to hydrostatic, indicating that there is drawdown of water through the sediment at rates of 1 to 5 mm/yr. North Pond is a recharge zone for hydrothermal circulation that is probably driven by lateral pressure gradients produced by topographic relief. |
| doi_str_mv | 10.1029/92GL00079 |
| format | Article |
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Three in situ pore‐pressure gradient measurements gave values that were negative relative to hydrostatic, indicating that there is drawdown of water through the sediment at rates of 1 to 5 mm/yr. North Pond is a recharge zone for hydrothermal circulation that is probably driven by lateral pressure gradients produced by topographic relief.</description><identifier>ISSN: 0094-8276</identifier><identifier>EISSN: 1944-8007</identifier><identifier>DOI: 10.1029/92GL00079</identifier><language>eng</language><publisher>Blackwell Publishing Ltd</publisher><subject>Flanks ; Fluid dynamics ; Flux ; Hydrostatics ; Lithosphere ; Ponds ; Ridges ; Sediments</subject><ispartof>Geophysical research letters, 1992-03, Vol.19 (5), p.517-520</ispartof><rights>Copyright 1992 by the American Geophysical Union.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a4990-97600f710017b6116b2cf928e97a4536e04bb8102f1ed469ca804f79621fc54d3</citedby><cites>FETCH-LOGICAL-a4990-97600f710017b6116b2cf928e97a4536e04bb8102f1ed469ca804f79621fc54d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1029%2F92GL00079$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1029%2F92GL00079$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1416,27923,27924,45573,45574</link.rule.ids></links><search><creatorcontrib>Langseth, Marcus G.</creatorcontrib><creatorcontrib>Becker, Keir</creatorcontrib><creatorcontrib>Von Herzen, Richard P.</creatorcontrib><creatorcontrib>Schultheiss, Peter</creatorcontrib><title>Heat and fluid flux through sediment on the western flank of the Mid-Atlantic Ridge: A hydrogeological study of North Pond</title><title>Geophysical research letters</title><addtitle>Geophys. Res. Lett</addtitle><description>A comprehensive survey of heat flow, sediment thickness and bathymetry in a large intermontane sediment pond on the western flank of the Mid‐Atlantic Ridge (North Pond) shows that only 20 to 25% of the heat escaping from the lithosphere flows through the sediments in the pond even though they completely cover a 70 km2 area of the seafloor. Three in situ pore‐pressure gradient measurements gave values that were negative relative to hydrostatic, indicating that there is drawdown of water through the sediment at rates of 1 to 5 mm/yr. North Pond is a recharge zone for hydrothermal circulation that is probably driven by lateral pressure gradients produced by topographic relief.</description><subject>Flanks</subject><subject>Fluid dynamics</subject><subject>Flux</subject><subject>Hydrostatics</subject><subject>Lithosphere</subject><subject>Ponds</subject><subject>Ridges</subject><subject>Sediments</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1992</creationdate><recordtype>article</recordtype><recordid>eNqFkUFvEzEQhS1EJULhwD_wEQ5bxl6vvcMtqmhSKS1VBOJoOWs7Md2si72rNvz6ug3qDXGZGT99z_LzEPKBwRkDjp-RL1YAoPAVmTEUomrL4TWZAWCZuZJvyNucfxWkhprNyJ-lMyM1g6W-n8JzfaDjLsVpu6PZ2bB3w0jjUDRH710eXRoKZIZbGv2zeBVsNR-LMoaOroPdui90TncHm-LWxT5uQ2d6msfJHp4s1zGNO3oTB_uOnHjTZ_f-bz8lPy6-fj9fVqtvi8vz-aoyAhEqVBLAKwbA1EYyJje888hbh8qIppYOxGbTlvCeOSskdqYF4RVKznzXCFufko_He-9S_D2VCHofcuf68mQXp6yZFJwjNg37P9pwUSOKWhT00xHtUsw5Oa_vUtibdNAM9NMq9MsqCnt2ZO9D7w7_BvVivWqQQzFUR0MoH_7wYjDpVktVq0b_vF7otm75-mq5LsMjFouWvg</recordid><startdate>19920303</startdate><enddate>19920303</enddate><creator>Langseth, Marcus G.</creator><creator>Becker, Keir</creator><creator>Von Herzen, Richard P.</creator><creator>Schultheiss, Peter</creator><general>Blackwell Publishing Ltd</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TN</scope><scope>F1W</scope><scope>H96</scope><scope>L.G</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope></search><sort><creationdate>19920303</creationdate><title>Heat and fluid flux through sediment on the western flank of the Mid-Atlantic Ridge: A hydrogeological study of North Pond</title><author>Langseth, Marcus G. ; Becker, Keir ; Von Herzen, Richard P. ; Schultheiss, Peter</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a4990-97600f710017b6116b2cf928e97a4536e04bb8102f1ed469ca804f79621fc54d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1992</creationdate><topic>Flanks</topic><topic>Fluid dynamics</topic><topic>Flux</topic><topic>Hydrostatics</topic><topic>Lithosphere</topic><topic>Ponds</topic><topic>Ridges</topic><topic>Sediments</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Langseth, Marcus G.</creatorcontrib><creatorcontrib>Becker, Keir</creatorcontrib><creatorcontrib>Von Herzen, Richard P.</creatorcontrib><creatorcontrib>Schultheiss, Peter</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Oceanic Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Geophysical research letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Langseth, Marcus G.</au><au>Becker, Keir</au><au>Von Herzen, Richard P.</au><au>Schultheiss, Peter</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Heat and fluid flux through sediment on the western flank of the Mid-Atlantic Ridge: A hydrogeological study of North Pond</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>1992-03-03</date><risdate>1992</risdate><volume>19</volume><issue>5</issue><spage>517</spage><epage>520</epage><pages>517-520</pages><issn>0094-8276</issn><eissn>1944-8007</eissn><abstract>A comprehensive survey of heat flow, sediment thickness and bathymetry in a large intermontane sediment pond on the western flank of the Mid‐Atlantic Ridge (North Pond) shows that only 20 to 25% of the heat escaping from the lithosphere flows through the sediments in the pond even though they completely cover a 70 km2 area of the seafloor. Three in situ pore‐pressure gradient measurements gave values that were negative relative to hydrostatic, indicating that there is drawdown of water through the sediment at rates of 1 to 5 mm/yr. 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| identifier | ISSN: 0094-8276 |
| ispartof | Geophysical research letters, 1992-03, Vol.19 (5), p.517-520 |
| issn | 0094-8276 1944-8007 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1642299551 |
| source | Wiley Online Library All Journals |
| subjects | Flanks Fluid dynamics Flux Hydrostatics Lithosphere Ponds Ridges Sediments |
| title | Heat and fluid flux through sediment on the western flank of the Mid-Atlantic Ridge: A hydrogeological study of North Pond |
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