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dc.contributor.authorLeighton, AD
dc.contributor.authorHart, MB
dc.contributor.authorSmart, CW
dc.contributor.authorLeng, MJ
dc.contributor.authorHampton, M
dc.date.accessioned2017-07-27T14:03:12Z
dc.date.available2017-07-27T14:03:12Z
dc.date.issued2017-07-01
dc.identifier.issn0096-1191
dc.identifier.urihttp://hdl.handle.net/10026.1/9646
dc.description.abstract

As part of an on-going re-assessment of the Creta-ceous/Paleogene boundary in the Brazos River area, Falls County, Texas, a number of new exposures have been described. One of these, at River Bank South, provides a near-continuous record of the lowermost Paleocene. It is from this succession that stable isotope analysis of bulk organic matter (δ13C and C/N) and mono-specific samples of the benthic foraminifera Lenticulina rotulata Lamarck (δ180 and δ13C) yields an orbitally-tuned stable isotope record, which allows the timing of events adjacent to the Cretaceous/Paleogene boundary to be determined. Using this cyclicity, it is suggested that the on-set of biotic recovery began ∼40, 000 years after the impact (near the base of Zone Pα) and that more significant recovery of planktic foraminifera and calcareous nannofossils began close to the base of Zone P1a, some 85, 000-100, 000 years post-impact. The data also appear to record the presence of the earliest Paleocene DAN-C2 and Lower C29n hyperthermal events and that these events appear to be an accentuated segment of this orbital cyclicity.

dc.format.extent229-238
dc.languageen
dc.language.isoen
dc.publisherCushman Foundation for Foraminiferal Research
dc.subject3709 Physical Geography and Environmental Geoscience
dc.subject31 Biological Sciences
dc.subject3103 Ecology
dc.subject37 Earth Sciences
dc.subject3702 Climate Change Science
dc.subject3705 Geology
dc.subject2 Aetiology
dc.subject2.1 Biological and endogenous factors
dc.titleTiming recovery after the Cretaceous/Paleogene boundary: evidence from the Brazos River, Texas, USA
dc.typejournal-article
dc.typeArticle
plymouth.author-urlhttps://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000418395400001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008
plymouth.issue3
plymouth.volume47
plymouth.publisher-urlhttp://dx.doi.org/10.2113/gsjfr.47.3.229
plymouth.publication-statusPublished
plymouth.journalJournal of Foraminiferal Research
dc.identifier.doi10.2113/gsjfr.47.3.229
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Geography, Earth and Environmental Sciences
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA07 Earth Systems and Environmental Sciences
plymouth.organisational-group/Plymouth/Research Groups
plymouth.organisational-group/Plymouth/Research Groups/Marine Institute
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
dcterms.dateAccepted2017-03-22
dc.rights.embargoperiodNot known
rioxxterms.versionofrecord10.2113/gsjfr.47.3.229
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2017-07-01
rioxxterms.typeJournal Article/Review


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