Show simple item record

dc.contributor.authorFox, Calum P.
dc.contributor.authorWhiteside, J.H.
dc.contributor.authorOlsen, P.E.
dc.contributor.authorCui, X.
dc.contributor.authorSummons, R.E.
dc.contributor.authorIdiz, E.
dc.contributor.authorGrice, Kliti
dc.date.accessioned2023-01-24T06:11:15Z
dc.date.available2023-01-24T06:11:15Z
dc.date.issued2022
dc.identifier.citationFox, C.P. and Whiteside, J.H. and Olsen, P.E. and Cui, X. and Summons, R.E. and Idiz, E. and Grice, K. 2022. Two-pronged kill mechanism at the end-Triassic mass extinction. Geology. 50 (4): pp. 448-453.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/90125
dc.identifier.doi10.1130/G49560.1
dc.description.abstract

High-resolution biomarker and compound-specific isotope distributions coupled with the degradation of calcareous fossil remnants reveal that intensive euxinia and decalcification (acidification) driven by Central Atlantic magmatic province (CAMP) activity formed a twopronged kill mechanism at the end-Triassic mass extinction. In a newly proposed extinction interval for the basal Blue Lias Formation (Bristol Channel Basin, UK), biomarker distributions reveal an episode of persistent photic zone euxinia (PZE) that extended further upward into the surface waters. In the same interval, shelly taxa almost completely disappear. Beginning in the basal paper shales of the Blue Lias Formation, a Lilliput assemblage is preserved consisting of only rare calcitic oysters (Liostrea) and ghost fossils of decalcified aragonitic bivalves. The stressors of PZE and decalcification parsimoniously explain the extinction event and inform possible combined causes of other biotic crises linked to emplacement of large igneous provinces, notably the end-Permian mass extinction, when PZE occurred on a broad and perhaps global scale

dc.languageEnglish
dc.publisherGEOLOGICAL SOC AMER, INC
dc.relation.sponsoredbyhttp://purl.org/au-research/grants/arc/LP150100341
dc.relation.sponsoredbyhttp://purl.org/au-research/grants/arc/LE110100119
dc.relation.sponsoredbyhttp://purl.org/au-research/grants/arc/LE100100041
dc.relation.sponsoredbyhttp://purl.org/au-research/grants/arc/LE0882836
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectScience & Technology
dc.subjectPhysical Sciences
dc.subjectGeology
dc.subjectPHOTIC ZONE EUXINIA
dc.subjectST-AUDRIES BAY
dc.subjectJURASSIC BOUNDARY
dc.subjectTERRESTRIAL
dc.subjectTRANSITION
dc.subjectRECOVERY
dc.subjectENGLAND
dc.subjectMAXIMUM
dc.subjectLINK
dc.titleTwo-pronged kill mechanism at the end-Triassic mass extinction
dc.typeJournal Article
dcterms.source.volume50
dcterms.source.number4
dcterms.source.startPage448
dcterms.source.endPage453
dcterms.source.issn0091-7613
dcterms.source.titleGeology
dc.date.updated2023-01-24T06:11:15Z
curtin.departmentSchool of Earth and Planetary Sciences (EPS)
curtin.accessStatusOpen access
curtin.facultyFaculty of Science and Engineering
curtin.contributor.orcidGrice, Kliti [0000-0003-2136-3508]
curtin.contributor.researcheridGrice, Kliti [L-2455-2016]
dcterms.source.eissn1943-2682
curtin.contributor.scopusauthoridGrice, Kliti [7005492625]


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

http://creativecommons.org/licenses/by/4.0/
Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by/4.0/