000133329 001__ 133329
000133329 005__ 20240412150654.0
000133329 0247_ $$2doi$$a10.1130/G40224.1
000133329 0248_ $$2sideral$$a106828
000133329 037__ $$aART-2018-106828
000133329 041__ $$aeng
000133329 100__ $$aRenne, Paul R.
000133329 245__ $$aMulti-proxy record of the Chicxulub impact at the Cretaceous-Paleogene boundary from Gorgonilla Island, Colombia
000133329 260__ $$c2018
000133329 5060_ $$aAccess copy available to the general public$$fUnrestricted
000133329 5203_ $$aA 40 m stratigraphic section at Gorgonilla Island, Colombia, provides a unique deep-marine, low-latitude, Southern Hemisphere record of events related to the end-Cretaceous Chicxulub impact and the global Cretaceous/Paleogene boundary (KPB). The KPB is marked by a 20-mm-thick, densely packed spherule bed as defined by planktic foraminifera, in contrast to complex relationships found in high-energy, impact-proximal sites in the Gulf of Mexico and Caribbean basins. The absence of basal Danian foraminiferal Zone P0 may indicate a possible hiatus of <10 ka immediately above the spherule bed, but is most probably an artifact of deposition below the calcite compensation depth as suggested by the nearly complete absence of calcareous fossils for 20 m below the Zone P alpha. A weighted mean Ar-40/Ar-39 age of 66.051 +/- 0.031 Ma for 25 fresh glassy spherules unequivocally establishes both their derivation from Chicxulub, and the association between the impact and the KPB. The spherule bed, and Maastrichtian strata below it, display soft-sediment deformation features consistent with strong seismic motion, suggesting that seismic activity in the immediate aftermath of the Chicxulub impact continued for weeks. We discovered a fern-spike immediately above the spherule bed, representing the first record of this pioneer vegetation from the South American continent, and from a low-latitude (tropical) environment.
000133329 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/BES-2016-077800$$9info:eu-repo/grantAgreement/ES/MINECO-FEDER/CGL2015-64422-P
000133329 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000133329 590__ $$a5.006$$b2018
000133329 591__ $$aGEOLOGY$$b1 / 46 = 0.022$$c2018$$dQ1$$eT1
000133329 592__ $$a2.868$$b2018
000133329 593__ $$aGeology$$c2018$$dQ1
000133329 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000133329 700__ $$0(orcid)0000-0003-4632-533X$$aArenillas, Ignacio$$uUniversidad de Zaragoza
000133329 700__ $$0(orcid)0000-0003-0063-8752$$aArz, José A.$$uUniversidad de Zaragoza
000133329 700__ $$aVajda, Vivi
000133329 700__ $$0(orcid)0000-0001-7302-5901$$aGilabert, Vicente$$uUniversidad de Zaragoza
000133329 700__ $$aBermudez, Hermann D.
000133329 7102_ $$12000$$2655$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Paleontología
000133329 773__ $$g46, 6 (2018), 547-550$$pGeology$$tGeology$$x0091-7613
000133329 8564_ $$s186966$$uhttps://zaguan.unizar.es/record/133329/files/texto_completo.pdf$$yPostprint
000133329 8564_ $$s1380063$$uhttps://zaguan.unizar.es/record/133329/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000133329 909CO $$ooai:zaguan.unizar.es:133329$$particulos$$pdriver
000133329 951__ $$a2024-04-12-13:57:45
000133329 980__ $$aARTICLE