000056336 001__ 56336
000056336 005__ 20190131090522.0
000056336 0247_ $$2doi$$a10.1002/2015PA002837
000056336 0248_ $$2sideral$$a94585
000056336 037__ $$aART-2016-94585
000056336 041__ $$aeng
000056336 100__ $$0(orcid)0000-0003-0662-6840$$aArreguín-Rodríguez, G.J.
000056336 245__ $$aLate Paleocene-middle Eocene benthic foraminifera on a Pacific seamount (Allison Guyot, ODP Site 865): Greenhouse climate and superimposed hyperthermal events
000056336 260__ $$c2016
000056336 5060_ $$aAccess copy available to the general public$$fUnrestricted
000056336 5203_ $$aWe investigated the response of late Paleocene-middle Eocene (~60-37.5 Ma) benthic foraminiferal assemblages to long-term climate change and hyperthermal events including the Paleocene-Eocene Thermal Maximum (PETM) at Ocean Drilling Program (ODP) Site 865 on Allison Guyot, a seamount in the Mid-Pacific Mountains. Seamounts are isolated deep-sea environments where enhanced current systems interrupt bentho-pelagic coupling, and fossil assemblages from such settings have been little evaluated. Assemblages at Site 865 are diverse and dominated by cylindrical calcareous taxa with complex apertures, an extinct group which probably lived infaunally. Dominance of an infaunal morphogroup is unexpected in a highly oligotrophic setting, but these forms may have been shallow infaunal suspension feeders, which were ecologically successful on the current-swept seamount. The magnitude of the PETM extinction at Site 865 was similar to other sites globally, but lower diversity postextinction faunas at this location were affected by ocean acidification as well as changes in current regime, which might have led to increased nutrient supply through trophic focusing. A minor hyperthermal saw less severe effects of changes in current regime, with no evidence for carbonate dissolution. Although the relative abundance of infaunal benthic foraminifera has been used as a proxy for surface productivity through bentho-pelagic coupling, we argue that this proxy can be used only in the absence of changes in carbonate saturation and current-driven biophysical linking.
000056336 536__ $$9info:eu-repo/grantAgreement/ES/DGA/E05$$9info:eu-repo/grantAgreement/ES/MINECO-FEDER/CGL2014-58794-P
000056336 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000056336 590__ $$a3.254$$b2016
000056336 591__ $$aGEOSCIENCES, MULTIDISCIPLINARY$$b37 / 188 = 0.197$$c2016$$dQ1$$eT1
000056336 591__ $$aPALEONTOLOGY$$b1 / 53 = 0.019$$c2016$$dQ1$$eT1
000056336 591__ $$aOCEANOGRAPHY$$b8 / 62 = 0.129$$c2016$$dQ1$$eT1
000056336 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000056336 700__ $$0(orcid)0000-0002-8801-9544$$aAlegret, L.$$uUniversidad de Zaragoza
000056336 700__ $$aThomas, E.
000056336 7102_ $$12000$$2655$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Paleontología
000056336 773__ $$g31, 3 (2016), 346-364$$pPaleoceanography$$tPALEOCEANOGRAPHY$$x0883-8305
000056336 8564_ $$s1734095$$uhttps://zaguan.unizar.es/record/56336/files/texto_completo.pdf$$yVersión publicada
000056336 8564_ $$s128506$$uhttps://zaguan.unizar.es/record/56336/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000056336 909CO $$ooai:zaguan.unizar.es:56336$$particulos$$pdriver
000056336 951__ $$a2019-01-31-08:57:28
000056336 980__ $$aARTICLE