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Sea-level and salinity fluctuations during the Paleocene-Eocene thermal maximum in Arctic Spitsbergen

Harding , Ian C; Charles, Adam J; Marshall, John E A; Palike, Heiko; Roberts, Andrew; Wilson, Paul A.; Jarvis, Edward; Thorne, Robert; Morris, Emily; Moremon, Rebecca; Pearce, Richard B; Akbari, Shir

Description

Palaeoenvironmental manifestations of the Paleocene-Eocene thermal maximum (PETM; ~56Ma) are relatively well documented in low- to mid-latitude settings and at high southern latitudes, but no documented high northern latitude sites record the entire hyperthermal event. We present high-resolution multi-proxy records from a PETM succession on Spitsbergen in the high Arctic (palaeolatitude ~75°N). By comparing our results with those from Integrated Ocean Drilling Program Site 302-4A, we document...[Show more]

dc.contributor.authorHarding , Ian C
dc.contributor.authorCharles, Adam J
dc.contributor.authorMarshall, John E A
dc.contributor.authorPalike, Heiko
dc.contributor.authorRoberts, Andrew
dc.contributor.authorWilson, Paul A.
dc.contributor.authorJarvis, Edward
dc.contributor.authorThorne, Robert
dc.contributor.authorMorris, Emily
dc.contributor.authorMoremon, Rebecca
dc.contributor.authorPearce, Richard B
dc.contributor.authorAkbari, Shir
dc.date.accessioned2015-12-10T23:16:36Z
dc.identifier.issn0012-821X
dc.identifier.urihttp://hdl.handle.net/1885/65134
dc.description.abstractPalaeoenvironmental manifestations of the Paleocene-Eocene thermal maximum (PETM; ~56Ma) are relatively well documented in low- to mid-latitude settings and at high southern latitudes, but no documented high northern latitude sites record the entire hyperthermal event. We present high-resolution multi-proxy records from a PETM succession on Spitsbergen in the high Arctic (palaeolatitude ~75°N). By comparing our results with those from Integrated Ocean Drilling Program Site 302-4A, we document regional palaeoenvironmental variations in the expression of the PETM, with evidence for major differences in basin-margin vegetation and water column oxygen depletion. Sedimentological, palynological and geochemical data demonstrate a pre-PETM sea level rise in Spitsbergen before the -4‰ δ13CTOC excursion, which culminated in maximum flooding during the peak of the event. The appearance of the dinoflagellate cyst Apectodinium before the onset of the carbon isotope excursion (CIE) corroborates that environmental change in the Arctic had begun prior to the CIE. Sedimentological and palynological evidence indicate that elevated terrestrial runoff resulted in water column stratification, providing further evidence for an intensification of the hydrological cycle during the PETM.
dc.publisherElsevier
dc.sourceEarth and Planetary Science Letters
dc.subjectKeywords: Abrupt/rapid climate change; Arctic; Paleoecology; PETM; Spitsbergen; Ecology; Isotopes; Offshore oil wells; Oxygen; Sea level; Sedimentology; Climate change; climate change; environmental change; geochemistry; hydrological cycle; Paleocene-Eocene boundar Abrupt/rapid climate change; Arctic; Paleoecology; PETM; Sedimentology; Spitsbergen
dc.titleSea-level and salinity fluctuations during the Paleocene-Eocene thermal maximum in Arctic Spitsbergen
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume303
dc.date.issued2011
local.identifier.absfor040606 - Quaternary Environments
local.identifier.ariespublicationf2965xPUB1057
local.type.statusPublished Version
local.contributor.affiliationHarding , Ian C, University of Southampton
local.contributor.affiliationCharles, Adam J, National Oceanography Centre
local.contributor.affiliationMarshall, John E A, University of Southampton
local.contributor.affiliationPalike, Heiko, University of Southampton
local.contributor.affiliationRoberts, Andrew, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationWilson, Paul A., Southampton Oceanography Centre
local.contributor.affiliationJarvis, Edward, University of Southampton
local.contributor.affiliationThorne, Robert, University of Southampton
local.contributor.affiliationMorris, Emily, University of Southampton
local.contributor.affiliationMoremon, Rebecca, University of Southampton
local.contributor.affiliationPearce, Richard B, University of Southampton
local.contributor.affiliationAkbari, Shir, University of Southampton
local.description.embargo2037-12-31
local.bibliographicCitation.startpage97
local.bibliographicCitation.lastpage107
local.identifier.doi10.1016/j.epsl.2010.12.043
dc.date.updated2016-02-24T08:08:42Z
local.identifier.scopusID2-s2.0-79951809537
local.identifier.thomsonID000288636800009
CollectionsANU Research Publications

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