Vis enkel innførsel

Impact of drill cutting releases on benthic foraminifera at three exploration wells drilled between 1992 and 2012 in the SW Barents Sea, Norway

dc.contributor.authorDijkstra, Noortje
dc.contributor.authorJunttila, Juho
dc.contributor.authorAagaard-Sørensen, Steffen
dc.date.accessioned2019-12-10T13:42:33Z
dc.date.available2019-12-10T13:42:33Z
dc.date.issued2019-12-04
dc.description.abstractThe aim of this study is to identify the environmental impact of drill cuttings (DC) released around three wells drilled in 1992, 2000 and 2012 in the SW Barents Sea. Foraminiferal assemblages are studied in cores taken along transects <250 m from wells. Well E-1992 shows no impact of DC on foraminifera indicating that low amounts of released DC limit environmental impact. Impact at wells G-2000 and S-2012, is confined to <30 m, and attributable to smothering of fauna, resulting in low foraminiferal density. We therefore argue that previous monitoring studies, mainly focusing on samples collected >250 m from wellheads, might not capture the full impact of DC. In well G-2000, a recovery layer indicates partial recovery 15 years after DC releases. In well S-2012, no recovery is observed, 3 years after release. Released DC did not result in faunal composition changes.en_US
dc.identifier.citationDijkstra N, Junttila JP, Aagaard-Sørensen S. Impact of drill cutting releases on benthic foraminifera at three exploration wells drilled between 1992 and 2012 in the SW Barents Sea, Norway. Marine Pollution Bulletin. 2019en_US
dc.identifier.cristinIDFRIDAID 1753594
dc.identifier.doihttps://doi.org/10.1016/j.marpolbul.2019.110784
dc.identifier.issn0025-326X
dc.identifier.issn1879-3363
dc.identifier.urihttps://hdl.handle.net/10037/16875
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.journalMarine Pollution Bulletin
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Mathematics and natural science: 400::Geosciences: 450::Stratigraphy and paleontology: 461en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Stratigrafi og paleontologi: 461en_US
dc.titleImpact of drill cutting releases on benthic foraminifera at three exploration wells drilled between 1992 and 2012 in the SW Barents Sea, Norwayen_US
dc.type.versionacceptedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


Tilhørende fil(er)

Thumbnail
Navn:
article.pdf
Størrelse:
4.418Mb
Format:
PDF
Åpne

Denne innførselen finnes i følgende samling(er)

Vis enkel innførsel