Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/2975
DC Field | Value | Language |
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dc.contributor.authorall | van Dongen, B. E.; Organic Geochemistry Unit, Bristol Biogeochemistry Research Centre, School of Chemistry, Cantock’s Close, Bristol University, Bristol BS8 1TS, United Kingdom | en |
dc.contributor.authorall | Roberts, A. P.; National Oceanography Centre, University of Southampton, European Way, Southampton SO14 3ZH, United Kingdom | en |
dc.contributor.authorall | Schouten, S.; Department of Marine Biogeochemistry, Royal Netherlands Institute for Sea Research, P.O. Box 59, 1790 AB Den Burg, Texel, The Netherlands | en |
dc.contributor.authorall | Jiang, W-T; Department of Earth Sciences, National Cheng Kung University, Tainan 70101, Taiwan, PR China | en |
dc.contributor.authorall | Florindo, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
dc.contributor.authorall | Pancost, R. D.; Organic Geochemistry Unit, Bristol Biogeochemistry Research Centre, School of Chemistry, Cantock’s Close, Bristol University, Bristol BS8 1TS, United Kingdom | en |
dc.date.accessioned | 2007-12-06T08:57:46Z | en |
dc.date.available | 2007-12-06T08:57:46Z | en |
dc.date.issued | 2007 | en |
dc.identifier.uri | http://hdl.handle.net/2122/2975 | en |
dc.description.abstract | The biomarker compositions of iron sulfide nodules (ISNs; upper Pliocene Valle Ricca section near Rome, Italy) that contain the ferrimagnetic mineral greigite (Fe3S4) were examined. In addition to the presence of specific terrestrial and marine biomarkers, consistent with formation in coastal marine sediments, these ISNs contain compounds thought to originate from sulfate reducing bacteria (SRB). These compounds include a variety of low-molecular-weight and branched alkanols and several non-isoprenoidal dialkyl glycerol diethers (DGDs). In addition, archaeal biomarkers, including archaeol, macrocyclic isoprenoidal DGDs and isoprenoidal glycerol dialkyl glycerol tetraethers are also present. Both SRB and archaeal lipid d13C values are depleted in 13C (d13C values are typically less than 50‰), which suggests that the SRB and archaea consumed 13C depleted methane. These biomarker and isotopic signatures are similar to those found in cold seeps and marine sediments where anaerobic oxidation of methane (AOM) occurs with sulfate serving as the terminal electron acceptor. Association of AOM with formation of greigite-containing ISNs could provide an explanation for documented remagnetization of the Valle Ricca sediments. Upward migration of methane, subsequent AOM and associated authigenic greigite formation are widespread processes in the geological record that have considerable potential to compromise paleomagnetic records. 2007 Elsevier Ltd. All rights reserved. | en |
dc.language.iso | English | en |
dc.publisher.name | Elsevier | en |
dc.relation.ispartof | Geochimica et Cosmochimica Acta | en |
dc.relation.ispartofseries | / 71(2007) | en |
dc.subject | sulfide nodules | en |
dc.subject | Valle Ricca section | en |
dc.title | Formation of iron sulfide nodules during anaerobic oxidation | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 5155-5167 | en |
dc.subject.INGV | 04. Solid Earth::04.04. Geology::04.04.99. General or miscellaneous | en |
dc.identifier.doi | 10.1016/j.gca.2007.08.019 | en |
dc.description.obiettivoSpecifico | 3.8. Geofisica per l'ambiente | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | reserved | en |
dc.contributor.author | van Dongen, B. E. | en |
dc.contributor.author | Roberts, A. P. | en |
dc.contributor.author | Schouten, S. | en |
dc.contributor.author | Jiang, W-T | en |
dc.contributor.author | Florindo, F. | en |
dc.contributor.author | Pancost, R. D. | en |
dc.contributor.department | Organic Geochemistry Unit, Bristol Biogeochemistry Research Centre, School of Chemistry, Cantock’s Close, Bristol University, Bristol BS8 1TS, United Kingdom | en |
dc.contributor.department | National Oceanography Centre, University of Southampton, European Way, Southampton SO14 3ZH, United Kingdom | en |
dc.contributor.department | Department of Marine Biogeochemistry, Royal Netherlands Institute for Sea Research, P.O. Box 59, 1790 AB Den Burg, Texel, The Netherlands | en |
dc.contributor.department | Department of Earth Sciences, National Cheng Kung University, Tainan 70101, Taiwan, PR China | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
dc.contributor.department | Organic Geochemistry Unit, Bristol Biogeochemistry Research Centre, School of Chemistry, Cantock’s Close, Bristol University, Bristol BS8 1TS, United Kingdom | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | restricted | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Organic Geochemistry Unit, Bristol Biogeochemistry Research Centre, School of Chemistry, Cantock’s Close, Bristol University, Bristol BS8 1TS, United Kingdom | - |
crisitem.author.dept | National Oceanography Centre, University of Southampton, European Way, Southampton SO14 3ZH, UK | - |
crisitem.author.dept | Department of Marine Biogeochemistry, Royal Netherlands Institute for Sea Research, P.O. Box 59, 1790 AB Den Burg, Texel, The Netherlands | - |
crisitem.author.dept | Department of Earth Sciences, National Cheng Kung University, Tainan, Taiwan | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione AC, Roma, Italia | - |
crisitem.author.dept | Organic Geochemistry Unit, Bristol Biogeochemistry Research Centre, School of Chemistry, Cantock’s Close, Bristol University, Bristol BS8 1TS, United Kingdom | - |
crisitem.author.orcid | 0000-0002-6058-9748 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
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van Dongen 2007.pdf | 1.03 MB | Adobe PDF |
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