{"refrec":{"BRefID":208943,"RR":"<b>Campbell, K. A.; Nelson, C.S.; Alfaro, A.C.; Boyd, S.; Greinert, J.; Nyman, S.; Grosjean, E.; Logan, G.A.; Gregory, M.R.; Cooke, S.; Linke, P.; Milloy, S.; Wallis, I.</b> (2010). Geological imprint of methane seepage on the seabed and biota of the convergent Hikurangi Margin, New Zealand: Box core and grab carbonate results. <i>Mar. Geol. 272(1-4)</i>: 285-306. <a href=\"http://dx.doi.org/10.1016/j.margeo.2010.01.002\" target=\"_blank\">dx.doi.org/10.1016/j.margeo.2010.01.002</a>","BEntID":200931,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Mar. Geol. 272(1-4)</i>: 285-306. <a href=\"https://dx.doi.org/10.1016/j.margeo.2010.01.002\" target=\"_blank\">https://dx.doi.org/10.1016/j.margeo.2010.01.002</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Campbell, K. A.; Nelson, C.S.; Alfaro, A.C.; Boyd, S.; Greinert, J.; Nyman, S.; Grosjean, E.; Logan, G.A.; Gregory, M.R.; Cooke, S.; Linke, P.; Milloy, S.; Wallis, I.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Campbell, K. A. <i>et al.</i>","Englishabstract":"Short box cores (to 30 cm bsf) and seafloor carbonate grab samples were acquired at mapped hydrocarbon seep sites (600–1200 m water depths) during the 2007 <i>RV SONNE SO191</i> cruise on the Hikurangi Margin offshore eastern North Island, New Zealand, to evaluate the influence of methane seepage on sedimentologic, biotic, mineralogic and stable isotopic attributes of seabed sediments. Sedimentary horizons in the box cores consist of siliciclastic silts and sands, shell beds and nodular, microcrystalline aragonite bands up to 15 cm thick. The megafauna is dominated by infaunal to semi-infaunal chemosymbiotic bivalves (<i>Calyptogena, Lucinoma</i>, and <i>Acharax</i>), as well as associated worms and carnivorous and grazing gastropods. Burrows in silts, some occupied by worms or juvenile <i>Acharax</i>, mainly have simple morphologies more typical of high-energy, nearshore settings than deep-sea environments, while a few are large and sparsely branched with wall scratch marks inferred to be of decapod crustacean origin.The box core silts and nodular carbonate samples vary in TOC content from 0.2 to 0.9 wt.%, carbonate content from 4 to 78%, and d<sup>13</sup>C and d<sup>18</sup>O values from - 50.3 to - 0.6‰ PDB and + 0.77 to + 3.2‰ PDB, respectively. Low carbonate content silt samples have the most enriched d<sup>13</sup>C values, implying a seawater source for their pore water bicarbonate. Negative d<sup>13</sup>C and positive d<sup>18</sup>O values typify the nodular, microcrystalline aragonite bands, indicating formation during microbially mediated, sulphate-dependent anaerobic oxidation of methane (AOM) in a cold, near-seafloor environment, as is also supported by lipid biomarker data. A clear isotopic mixing trend of decreasing d<sup>13</sup>C and increasing d<sup>18</sup>O and carbonate content in the fine (< 100 µm) carbonate fraction of the host silts also has been reported from other methane seep provinces, and suggests a heterogeneous influx of methane-rich seep fluids through the shallow seabed, displacing pore waters of seawater origin.Seafloor grab carbonate samples show greater textural variability and are divided into two types. Fresh-appearing, grey to white blocks yield similar mineralogic, isotopic and biomarker signatures to the nodular carbonate bands in the cores. A largely seep-related epifauna affiliated with these grab samples include chemosymbiotic bathymodiolin mussels, siboglinid tube worms, methanotrophic suberitid sponges and grazing limpets which, in places, are entombed within the carbonate. By contrast, some dark reddish to brown, iron-stained, microcrystalline dolomitic slabs and tubular concretions support abundant non-seep epifaunal encrusters from the surrounding deep sea, indicative of long exposure on the seafloor. Distinct stable isotopic signatures of these exhumed dolostones (d<sup>13</sup>C c. - 20‰ PDB, d<sup>18</sup>O up to + 7‰ PDB) suggest derivation from an oxidised methane pool, and pore fluid freshening by gas hydrate dissociation or from mobilized burial fluids that have undergone clay mineral dehydration.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Geological imprint of methane seepage on the seabed and biota of the convergent Hikurangi Margin, New Zealand: Box core and grab carbonate results","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Hikurangi Margin; New Zealand; hydrocarbon seeps; chemosynthesis; authigenic carbonates; mineralogy; stable isotopes; lipid biomarkers","OtherDescriptors":null,"Notes":null,"AnaPub":2010,"MonPub":null,"DateUpdate":"2016-06-12","DateCreate":"2011-10-25","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000278638300022","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.margeo.2010.01.002"},"refs":null,"anarec":{"AnaID":208943,"PubliDate":2010,"Pagination":"285-306","XtraPublOfAnaID":null,"ISBN":null,"Volume":"272","Issue":"1-4","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43365,"SerRR":"Marine Geology. Elsevier: Amsterdam.  ISSN 0025-3227; e-ISSN 1872-6151","StandardTitleSer":"Marine Geology","ISSN":"0025-3227","AbbrevSer":"Mar. Geol.","StandardTitleMon":null,"StartPage":285,"Pages":22,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"Campbell","Firstname":"Kathleen","Initials":"K. A.","Affiliation":"School of Environment, University of Auckland","Discriminator":null,"CorporateFlag":0,"BEntID":200931,"AutID":136322,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Nelson","Firstname":"Campbell","Initials":"C.S.","Affiliation":"Department of Earth and Oceanic Sciences, University of Waikato","Discriminator":null,"CorporateFlag":0,"BEntID":200931,"AutID":136323,"OrderNr":2,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Alfaro","Firstname":"Andrea","Initials":"A.C.","Affiliation":"School of Applied Sciences, Faculty of Health and Environmental Sciences, Auckland University of Technology","Discriminator":null,"CorporateFlag":0,"BEntID":200931,"AutID":136324,"OrderNr":3,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Boyd","Firstname":"Sheree","Initials":"S.","Affiliation":"School of Applied Sciences, Faculty of Health and Environmental Sciences, Auckland University of Technology","Discriminator":null,"CorporateFlag":0,"BEntID":200931,"AutID":134159,"OrderNr":4,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Greinert","Firstname":"Jens","Initials":"J.","Affiliation":"Renard Centre of Marine Geology (RCMG), Ghent University","Discriminator":null,"CorporateFlag":0,"BEntID":200931,"AutID":134160,"OrderNr":5,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":"RCMG","InsFSN":"Universiteit Gent; Faculteit Wetenschappen; Vakgroep Geologie; Renard Centre of Marine Geology","ORCID":"0000-0001-6186-8573","PersID":11994,"InsID":74},{"AutName":"Nyman","Firstname":"Stephanie","Initials":"S.","Affiliation":"Department of Earth and Oceanic Sciences, University of Waikato","Discriminator":null,"CorporateFlag":0,"BEntID":200931,"AutID":134161,"OrderNr":6,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Grosjean","Firstname":"Emmanuelle","Initials":"E.","Affiliation":"Geoscience Australia","Discriminator":null,"CorporateFlag":0,"BEntID":200931,"AutID":136325,"OrderNr":7,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Logan","Firstname":"Graham","Initials":"G.A.","Affiliation":"Geoscience Australia","Discriminator":null,"CorporateFlag":0,"BEntID":200931,"AutID":136326,"OrderNr":8,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Gregory","Firstname":"Murray","Initials":"M.R.","Affiliation":"School of Environment, University of Auckland","Discriminator":null,"CorporateFlag":0,"BEntID":200931,"AutID":136327,"OrderNr":9,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Cooke","Firstname":"Steve","Initials":"S.","Affiliation":"Department of Earth and Oceanic Sciences, University of Waikato","Discriminator":null,"CorporateFlag":0,"BEntID":200931,"AutID":134162,"OrderNr":10,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Linke","Firstname":"Peter","Initials":"P.","Affiliation":"IFM-GEOMAR, Leibniz Institute of Marine Sciences at the University of Kiel","Discriminator":null,"CorporateFlag":0,"BEntID":200931,"AutID":136328,"OrderNr":11,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":"IFM-GEOMAR","InsFSN":"Christian-Albrechts-University Kiel; Leibniz Institute of Marine Sciences","ORCID":null,"PersID":null,"InsID":4926},{"AutName":"Milloy","Firstname":"Sophie","Initials":"S.","Affiliation":"School of Environment, University of Auckland","Discriminator":null,"CorporateFlag":0,"BEntID":200931,"AutID":134163,"OrderNr":12,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Wallis","Firstname":"Irene","Initials":"I.","Affiliation":"School of Environment, University of Auckland","Discriminator":null,"CorporateFlag":0,"BEntID":200931,"AutID":134164,"OrderNr":13,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null}],"mapdetails":null,"datasets":null,"monographs":null,"monparts":null,"serparts":null,"BEntOpen":null,"BEntPrivate":null,"availability":[{"BInstID":227449,"LibID":36,"BRefID":208943,"EmbargoDate":null,"FullEmbargoDate":null,"PhysMedID":16,"hasOCRd":1,"ShelfLocCode":"227449","RFID":null,"PaidValue":null,"Medium":"Server","Description":null,"Acronym":"VLIZ","Library":"Vlaams Instituut voor de Zee","DutchTerm":"Open Marien Archief","URL":null,"ClassifID":235,"Classification":"Open Marine Archive","ReqLink":null,"ClassifTypID":5,"URLLocation":"https://www.vliz.be/imisdocs/publications/","SubDir":0,"InternalReq":0,"LoggedInReq":0,"Disclaimer":"Disclaimer_OMA","DutchDisclaimer":null,"FileFormat":".pdf","FileDescr":"pdf","InsPub":1,"InsID":36,"FileFormID":6,"LendableFlag":1,"PublicFlag":1,"orderLib":"A","Notes":null,"AccConID":null,"AccessConstraint":null,"LicURL":null}],"litstyles":null,"thespers":null,"arch2discl":null,"SERpubls":[{"PublName":"Elsevier","City":"Amsterdam"}],"MONpubls":null,"pictures":[],"thestermsPath":null,"thestermsASFA":null,"taxtermsASFA":null,"geotermsASFA":null,"collections":[{"Collection":"OMA - Open Marien Archief","ShortName":"OMA"}],"conf":null,"proj":null,"Physdatasets":null,"spcols":{"222":{"SpName":"BMB - Belgische Mariene Bibliografie","SpColID":222,"ParSpColID":null,"TopParID":null,"ShortName":"BMB","URLLocation":null,"LibID":36,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"BMB"},"880":{"SpName":"OBIS-cited publications","SpColID":880,"ParSpColID":null,"TopParID":null,"ShortName":"OBIS-cited publications","URLLocation":null,"LibID":36,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"OBIS-cited publications"},"221":{"SpName":"OMA - Open Marien Archief","SpColID":221,"ParSpColID":null,"TopParID":null,"ShortName":"OMA","URLLocation":null,"LibID":36,"OpenRepoFlag":1,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"OMA"}},"doi":null,"publs":null,"serparttypes":null,"monauthors":null,"MParts":null,"SParts":null,"hLibs":null,"langs":[{"BEntID":200931,"AbstractFlag":0,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"}],"urls":[{"URL":"https://dx.doi.org/10.1016/j.margeo.2010.01.002","externalID":"10.1016/j.margeo.2010.01.002","URLTypeCode":"DOI","URLID":19218,"URLTypID":13,"URLType":"DOI","URLPrefix":"http://dx.doi.org/"}],"thesterms":null,"taxterms":null,"geoterms":null,"othterms":null,"asfacodes":null,"asfa2codes":null,"thestermsFRIS":null,"taxtermsFRIS":null,"geotermsFRIS":null,"othtermsFRIS":null,"resmessage":"","complete":1,"sessions":{"newSesName":"Bouchti, Zohra, Z.","newSesDate":{"date":"2011-10-25 08:40:58.467000","timezone_type":3,"timezone":"Europe/Brussels"},"updSesName":"Lyssens, Liesbeth, L.","updSesDate":{"date":"2016-06-12 21:33:46.217000","timezone_type":3,"timezone":"Europe/Brussels"}}}