000079073 001__ 79073
000079073 005__ 20191126134629.0
000079073 0247_ $$2doi$$a10.1016/j.jafrearsci.2018.02.013
000079073 0248_ $$2sideral$$a106417
000079073 037__ $$aART-2018-106417
000079073 041__ $$aeng
000079073 100__ $$aGrira, C.
000079073 245__ $$aPaleoenvironmental and ecological changes during the Eocene-Oligocene transition based on foraminifera from the Cap Bon Peninsula in North East Tunisia
000079073 260__ $$c2018
000079073 5060_ $$aAccess copy available to the general public$$fUnrestricted
000079073 5203_ $$aBiostratigraphic analysis of the Eocene-Oligocene transition (E-O) at the Menzel Bou Zelfa and Jhaff composite section in the Cap Bon Peninsula (North East Tunisia) allowed us to recognize a continuous planktic foraminiferal biozonation: E14 Globigerinatheka semiinvoluta Zone, E15 Globigerinatheka index Zone, E16 Hantkenina alabamensis Zone and O1 Pseudohastigerina naguewichiensis Zone. A quantitative study of benthic and planktic foraminifera assemblages was carried out and the richness and diversity of foraminifera allowed us to reconstruct the paleoenvironmental evolution from marine to terrestrial environments. From the Eocene E14 Zone, the foraminiferal association characterizes a relatively warm climate with considerable oxygen content and a dominance of keeled and spinose planktic foraminifera, which became extinct at the E/O boundary, possibly due to cooling of the planktic environment. Nevertheless, the small benthic foraminifera do not show an extinction event at the Eocene/Oligocene (E/O) boundary, indicating that the benthic environment was not significantly affected. In the basal Oligocene O1 Zone, the benthic environment changes to a shallower setting due to cooling of the climate. These changes generated a remarkable dominance of globular forms in the planktic environment. Small benthic foraminifera apparently have a gradual extinction event, or more likely a gradual pattern of local disappearances, that could have been caused by the Oi1 glaciation.
000079073 536__ $$9info:eu-repo/grantAgreement/ES/DGA/E05$$9info:eu-repo/grantAgreement/ES/MINECO-FEDER/CGL2014-58794-P
000079073 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000079073 590__ $$a1.633$$b2018
000079073 591__ $$aGEOSCIENCES, MULTIDISCIPLINARY$$b128 / 195 = 0.656$$c2018$$dQ3$$eT2
000079073 592__ $$a0.595$$b2018
000079073 593__ $$aGeology$$c2018$$dQ2
000079073 593__ $$aEarth-Surface Processes$$c2018$$dQ2
000079073 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000079073 700__ $$aKaroui-Yaakoub, N.
000079073 700__ $$aNegra, M.H.
000079073 700__ $$0(orcid)0000-0002-4329-7858$$aRivero-Cuesta, L.$$uUniversidad de Zaragoza
000079073 700__ $$0(orcid)0000-0001-5660-1428$$aMolina, E.$$uUniversidad de Zaragoza
000079073 7102_ $$12000$$2655$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Paleontología
000079073 773__ $$g143 (2018), 145-161$$pJ. Afr. earth sci.$$tJournal of African Earth Sciences$$x1464-343X
000079073 8564_ $$s736268$$uhttps://zaguan.unizar.es/record/79073/files/texto_completo.pdf$$yPostprint
000079073 8564_ $$s8484$$uhttps://zaguan.unizar.es/record/79073/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000079073 909CO $$ooai:zaguan.unizar.es:79073$$particulos$$pdriver
000079073 951__ $$a2019-11-26-13:40:19
000079073 980__ $$aARTICLE