Quantifying manganese and nitrogen cycle coupling in manganese‐rich, organic carbon‐starved marine sediments: Examples from the Clarion‐Clipperton fracture zone
Extensive deep‐sea sedimentary areas are characterized by low organic carbon contents and thus harbor suboxic sedimentary environments where secondary (autotrophic) redox cycling becomes important for microbial metabolic processes. Simulation results for three stations in the Eastern Equatorial Paci...
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| Veröffentlicht in: | Geophysical research letters 2016-07, Vol.43 (13), p.7114-7123 |
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| creator | Mogollón, José M. Mewes, Konstantin Kasten, Sabine |
| description | Extensive deep‐sea sedimentary areas are characterized by low organic carbon contents and thus harbor suboxic sedimentary environments where secondary (autotrophic) redox cycling becomes important for microbial metabolic processes. Simulation results for three stations in the Eastern Equatorial Pacific with low organic carbon content (20 μM) concentrations.
Key Points
Clarion‐Clipperton fracture zone sediments are characterized by broad (meter‐scale) suboxic zones
Ammonium may provide additional reducing power in carbon‐starved sediments
Anaerobic ammonium oxidation may occur in the presence of manganese oxides in suboxic sediments |
| doi_str_mv | 10.1002/2016GL069117 |
| format | Article |
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Key Points
Clarion‐Clipperton fracture zone sediments are characterized by broad (meter‐scale) suboxic zones
Ammonium may provide additional reducing power in carbon‐starved sediments
Anaerobic ammonium oxidation may occur in the presence of manganese oxides in suboxic sediments</description><identifier>ISSN: 0094-8276</identifier><identifier>EISSN: 1944-8007</identifier><identifier>DOI: 10.1002/2016GL069117</identifier><language>eng</language><publisher>Washington: John Wiley & Sons, Inc</publisher><subject>Ammonium ; Ammonium compounds ; Biodegradation ; Biogeochemistry ; Carbon ; Carbon content ; Conversion ; Coupling ; Cycles ; Deep sea ; Deep sea sediments ; Deep water ; Degradation ; Fracture mechanics ; Fracture zones ; Fractures ; geochemical model ; Geophysics ; Harbors ; Interactions ; Manganese ; Manganese oxides ; Marine sediments ; Microorganisms ; Nitrates ; Nitrogen ; Nitrogen cycle ; Organic carbon ; Organic matter ; Oxides ; Oxidoreductions ; Redox properties ; Reducing agents ; Sediment ; sediment diagenesis ; Sedimentary environments ; Sedimentation ; Sedimentation rates ; Sediments ; Simulation ; suboxic geochemistry ; Transformations</subject><ispartof>Geophysical research letters, 2016-07, Vol.43 (13), p.7114-7123</ispartof><rights>2016. The Authors.</rights><rights>2016. American Geophysical Union. All Rights Reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a5704-497cae9b8d2d2db7a4267acdf19b3c4cb3284a5bb4f53fcc140893dbf57eae963</citedby><cites>FETCH-LOGICAL-a5704-497cae9b8d2d2db7a4267acdf19b3c4cb3284a5bb4f53fcc140893dbf57eae963</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2F2016GL069117$$EPDF$$P50$$Gwiley$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2F2016GL069117$$EHTML$$P50$$Gwiley$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,1417,1433,11514,27924,27925,45574,45575,46409,46468,46833,46892</link.rule.ids></links><search><creatorcontrib>Mogollón, José M.</creatorcontrib><creatorcontrib>Mewes, Konstantin</creatorcontrib><creatorcontrib>Kasten, Sabine</creatorcontrib><title>Quantifying manganese and nitrogen cycle coupling in manganese‐rich, organic carbon‐starved marine sediments: Examples from the Clarion‐Clipperton fracture zone</title><title>Geophysical research letters</title><description>Extensive deep‐sea sedimentary areas are characterized by low organic carbon contents and thus harbor suboxic sedimentary environments where secondary (autotrophic) redox cycling becomes important for microbial metabolic processes. Simulation results for three stations in the Eastern Equatorial Pacific with low organic carbon content (<0.5 dry wt %) and low sedimentation rates (10−1–100 mm ky−1) show that ammonium generated during organic matter degradation may act as a reducing agent for manganese oxides below the oxic zone. Likewise, at these sedimentary depths, dissolved reduced manganese may act as a reducing agent for oxidized nitrogen species. These manganese‐coupled transformations provide a suboxic conversion pathway of ammonium and nitrate to dinitrogen. These manganese‐nitrogen interactions further explain the presence and production of dissolved reduced manganese (up to tens of μM concentration) in sediments with high nitrate (>20 μM) concentrations.
Key Points
Clarion‐Clipperton fracture zone sediments are characterized by broad (meter‐scale) suboxic zones
Ammonium may provide additional reducing power in carbon‐starved sediments
Anaerobic ammonium oxidation may occur in the presence of manganese oxides in suboxic sediments</description><subject>Ammonium</subject><subject>Ammonium compounds</subject><subject>Biodegradation</subject><subject>Biogeochemistry</subject><subject>Carbon</subject><subject>Carbon content</subject><subject>Conversion</subject><subject>Coupling</subject><subject>Cycles</subject><subject>Deep sea</subject><subject>Deep sea sediments</subject><subject>Deep water</subject><subject>Degradation</subject><subject>Fracture mechanics</subject><subject>Fracture zones</subject><subject>Fractures</subject><subject>geochemical model</subject><subject>Geophysics</subject><subject>Harbors</subject><subject>Interactions</subject><subject>Manganese</subject><subject>Manganese oxides</subject><subject>Marine sediments</subject><subject>Microorganisms</subject><subject>Nitrates</subject><subject>Nitrogen</subject><subject>Nitrogen cycle</subject><subject>Organic carbon</subject><subject>Organic matter</subject><subject>Oxides</subject><subject>Oxidoreductions</subject><subject>Redox properties</subject><subject>Reducing agents</subject><subject>Sediment</subject><subject>sediment diagenesis</subject><subject>Sedimentary environments</subject><subject>Sedimentation</subject><subject>Sedimentation rates</subject><subject>Sediments</subject><subject>Simulation</subject><subject>suboxic geochemistry</subject><subject>Transformations</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>24P</sourceid><sourceid>WIN</sourceid><recordid>eNqN0s2KFDEQAOBGFBx3vfkAAS8edtbKTycdbzKss8KAKHpu0unq2SzppE261fHkI_gUPphPsllHUDwskkNC5auCSqqqnlA4pwDsOQMqtzuQmlJ1r1pRLcS6AVD3qxWALmem5MPqUc7XAMCB01X14-1iwuyGgwt7MpqwNwEzEhN6Etyc4h4DsQfrkdi4TP5WufAH_vz2PTl7dUZiKgFniTWpi6GE82zSJ-wLTS4gydi7EcOcX5CLL2acPGYypDiS-QrJxhf0K2vj3TRhmmMot8bOS0LyNQY8rR4Mxmd8_Hs_qT68uni_uVzv3mxfb17u1qZWINZCK2tQd03PyuqUEUwqY_uB6o5bYTvOGmHqrhNDzQdrqYBG874baoUlT_KT6tmx7pTixwXz3I4uW_S-dBuX3NKG15IDA_0flNJSXOu60Kf_0Ou4pFAaaWn5KwZMK3mnakDWNWVMFHV2VDbFnBMO7ZRceeRDS6G9nYL27ykonB35Z-fxcKdtt-92tZBC8BvS5rii</recordid><startdate>20160716</startdate><enddate>20160716</enddate><creator>Mogollón, José M.</creator><creator>Mewes, Konstantin</creator><creator>Kasten, Sabine</creator><general>John Wiley & Sons, Inc</general><scope>24P</scope><scope>WIN</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>7TN</scope><scope>8FD</scope><scope>F1W</scope><scope>FR3</scope><scope>H8D</scope><scope>H96</scope><scope>KL.</scope><scope>KR7</scope><scope>L.G</scope><scope>L7M</scope></search><sort><creationdate>20160716</creationdate><title>Quantifying manganese and nitrogen cycle coupling in manganese‐rich, organic carbon‐starved marine sediments: Examples from the Clarion‐Clipperton fracture zone</title><author>Mogollón, José M. ; Mewes, Konstantin ; Kasten, Sabine</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a5704-497cae9b8d2d2db7a4267acdf19b3c4cb3284a5bb4f53fcc140893dbf57eae963</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Ammonium</topic><topic>Ammonium compounds</topic><topic>Biodegradation</topic><topic>Biogeochemistry</topic><topic>Carbon</topic><topic>Carbon content</topic><topic>Conversion</topic><topic>Coupling</topic><topic>Cycles</topic><topic>Deep sea</topic><topic>Deep sea sediments</topic><topic>Deep water</topic><topic>Degradation</topic><topic>Fracture mechanics</topic><topic>Fracture zones</topic><topic>Fractures</topic><topic>geochemical model</topic><topic>Geophysics</topic><topic>Harbors</topic><topic>Interactions</topic><topic>Manganese</topic><topic>Manganese oxides</topic><topic>Marine sediments</topic><topic>Microorganisms</topic><topic>Nitrates</topic><topic>Nitrogen</topic><topic>Nitrogen cycle</topic><topic>Organic carbon</topic><topic>Organic matter</topic><topic>Oxides</topic><topic>Oxidoreductions</topic><topic>Redox properties</topic><topic>Reducing agents</topic><topic>Sediment</topic><topic>sediment diagenesis</topic><topic>Sedimentary environments</topic><topic>Sedimentation</topic><topic>Sedimentation rates</topic><topic>Sediments</topic><topic>Simulation</topic><topic>suboxic geochemistry</topic><topic>Transformations</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mogollón, José M.</creatorcontrib><creatorcontrib>Mewes, Konstantin</creatorcontrib><creatorcontrib>Kasten, Sabine</creatorcontrib><collection>Wiley Online Library (Open Access Collection)</collection><collection>Wiley Online Library (Open Access Collection)</collection><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Technology Research Database</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</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>Mogollón, José M.</au><au>Mewes, Konstantin</au><au>Kasten, Sabine</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Quantifying manganese and nitrogen cycle coupling in manganese‐rich, organic carbon‐starved marine sediments: Examples from the Clarion‐Clipperton fracture zone</atitle><jtitle>Geophysical research letters</jtitle><date>2016-07-16</date><risdate>2016</risdate><volume>43</volume><issue>13</issue><spage>7114</spage><epage>7123</epage><pages>7114-7123</pages><issn>0094-8276</issn><eissn>1944-8007</eissn><abstract>Extensive deep‐sea sedimentary areas are characterized by low organic carbon contents and thus harbor suboxic sedimentary environments where secondary (autotrophic) redox cycling becomes important for microbial metabolic processes. Simulation results for three stations in the Eastern Equatorial Pacific with low organic carbon content (<0.5 dry wt %) and low sedimentation rates (10−1–100 mm ky−1) show that ammonium generated during organic matter degradation may act as a reducing agent for manganese oxides below the oxic zone. Likewise, at these sedimentary depths, dissolved reduced manganese may act as a reducing agent for oxidized nitrogen species. These manganese‐coupled transformations provide a suboxic conversion pathway of ammonium and nitrate to dinitrogen. These manganese‐nitrogen interactions further explain the presence and production of dissolved reduced manganese (up to tens of μM concentration) in sediments with high nitrate (>20 μM) concentrations.
Key Points
Clarion‐Clipperton fracture zone sediments are characterized by broad (meter‐scale) suboxic zones
Ammonium may provide additional reducing power in carbon‐starved sediments
Anaerobic ammonium oxidation may occur in the presence of manganese oxides in suboxic sediments</abstract><cop>Washington</cop><pub>John Wiley & Sons, Inc</pub><doi>10.1002/2016GL069117</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record> |
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| source | Wiley Journals; Wiley-Blackwell AGU Digital Library; EZB-FREE-00999 freely available EZB journals; Wiley Online Library (Open Access Collection) |
| subjects | Ammonium Ammonium compounds Biodegradation Biogeochemistry Carbon Carbon content Conversion Coupling Cycles Deep sea Deep sea sediments Deep water Degradation Fracture mechanics Fracture zones Fractures geochemical model Geophysics Harbors Interactions Manganese Manganese oxides Marine sediments Microorganisms Nitrates Nitrogen Nitrogen cycle Organic carbon Organic matter Oxides Oxidoreductions Redox properties Reducing agents Sediment sediment diagenesis Sedimentary environments Sedimentation Sedimentation rates Sediments Simulation suboxic geochemistry Transformations |
| title | Quantifying manganese and nitrogen cycle coupling in manganese‐rich, organic carbon‐starved marine sediments: Examples from the Clarion‐Clipperton fracture zone |
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