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dc.contributor.authorGrice, Kliti
dc.contributor.authorTwitchett, R.
dc.contributor.authorAlexander, Robert
dc.contributor.authorFoster, C.
dc.contributor.authorLooy, Cindy
dc.date.accessioned2017-01-30T12:49:32Z
dc.date.available2017-01-30T12:49:32Z
dc.date.created2009-03-05T00:55:16Z
dc.date.issued2005
dc.date.submitted2009-10-29
dc.identifier.citationGrice, Kliti and Twitchett, Richard and Alexander, Robert and Foster, C. and Looy, Cindy. 2005. A potential biomarker for the Permian-Triassic ecological crisis. Earth and Planetary Science Letters. 236 (1-2): pp. 315-321.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/25648
dc.identifier.doi10.1016/j.epsl.2005.05.008
dc.description.abstract

A unique biomarker, a C33 n-alkylcyclohexane (n-heptacosylcyclohexane), which strongly increases in abundance within the extinction interval of the end-Permian ecological crisis, is here reported from the key Permian–Triassic (P–Tr) marine section in Greenland. Prior to this study, this compound had been known from Early Triassic organic-rich marine rocks and oils from the northern Perth Basin, Western Australia for two decades. We have identified the compound in high relative abundance in 29 samples from P–Tr marine sections from two separate paleogeographic localities, from Laurasia and Gondwana. Relative concentrations of the C33 n-alkylcyclohexane show similar changes to the relative abundances of extinct spinose acritarchs (Veryhachium and Micrhystridium) indicating that the source organism of the C33 n-alkylcyclohexane is associated with the depositional environments/facies in which the acritarchs are identified. These organisms probably formed the cornerstone of the unique marine ecosystem that thrived in the extinction aftermath in the Early Triassic Ocean.

dc.publisherElsevier BV
dc.subjectTriassic
dc.subjectextinction
dc.subjectPermian
dc.subjectbiomarkers
dc.titleA potential biomarker for the Permian-Triassic ecological crisis
dc.typeJournal Article
dcterms.dateSubmitted2009-03-05
dcterms.source.volume236
dcterms.source.number1-2
dcterms.source.startPage315
dcterms.source.endPage321
dcterms.source.issn0012821X
dcterms.source.titleEarth and Planetary Science Letters
curtin.digitool.pid116797
curtin.note

The link to the journal’s home page is: http://www.elsevier.com/wps/find/journaldescription.cws_home/503328/description#description

curtin.note

Copyright © 2005 Elsevier Ltd. All rights reserved

curtin.pubStatusPublished
curtin.identifier.scriptidPUB-ESC-DAC-TMC-30471
curtin.accessStatusFulltext not available
curtin.facultyDepartment of Applied Chemistry
curtin.facultySchool of Science
curtin.facultyFaculty of Science and Engineering


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