New latitude-based nannofossil zonations for the Campanian-Maastrichtian of the South Atlantic Ocean and their paleoceanographic implications

The global evolution of calcareous nannofossils during the Campanian-Maastrichtian interval is not fully understood, and nannofossil zonations for the central and South Atlantic Ocean are yet to be constructed. Here, we test the applicability of previous calcareous nannofossil zonations developed fo...

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Autor principal: do Monte Guerra, R.
Otros Autores: Concheyro, A., Wise, S.W., Jr, Kender, S., Fauth, G.
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Publicado: Elsevier B.V. 2016
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100 1 |a do Monte Guerra, R. 
245 1 0 |a New latitude-based nannofossil zonations for the Campanian-Maastrichtian of the South Atlantic Ocean and their paleoceanographic implications 
260 |b Elsevier B.V.  |c 2016 
270 1 0 |m do Monte Guerra, R.; itt Fossil, Instituto Tecnológico de Micropaleontologia, Universidade do Vale do Rio dos Sinos (UNISINOS), Av. UNISINOS, 950 B. Cristo Rei, Brazil; email: rmguerra@unisinos.br 
506 |2 openaire  |e Política editorial 
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520 3 |a The global evolution of calcareous nannofossils during the Campanian-Maastrichtian interval is not fully understood, and nannofossil zonations for the central and South Atlantic Ocean are yet to be constructed. Here, we test the applicability of previous calcareous nannofossil zonations developed for other ocean basins, for biostratigraphy in the South Atlantic Ocean, and refine Campanian-Maastrichtian biostratigraphy in the region. We document calcareous nannofossil distributions at Deep Sea Drilling Project (DSDP) and Ocean Drilling Program (ODP) sites from the high, mid and low latitudes in the South Atlantic Ocean (DSDP Sites 354, 356, 511, 525A, and 530A, and ODP Sites 690C; 700B; 661A, and 1258A). Combining nannofossil occurrences with magnetostratigraphic schemes previously constructed for some of the sites, we propose three new zonations tied to the global magnetostratigraphic chrons, with distinct bio-horizons selected at different latitudinal regions. In this study we present detailed definitions of new South Atlantic Ocean Low-latitude (SAL), South Atlantic Mid-latitude (SAM) and South Atlantic High-latitude (SAH) zonations. We identified significant diachronism of some species between latitudes throughout the Campanian and Maastrichtian. These species diachronism, mainly between zonal markers from low and mid latitudes during the late Maastrichtian, was probably related to migration patterns due to fundamental paleoceanographic changes. © 2016 Elsevier B.V.  |l eng 
536 |a Detalles de la financiación: Natural Environment Research Council, NERC, bgs05002 
536 |a Detalles de la financiación: The authors thank the staff of itt Fossil, Universidade do Vale do Rio dos Sinos (UNISINOS). Karlos G. D. Kochhann is thanked for early reviews and suggestions, and Christian Linnert and an anonymous reviewer are thanked for the critical revision of this manuscript. This study constitutes part of the Ph.D. thesis of Rodrigo M. Guerra at Universidade do Vale do Rio dos Sinos (UNISINOS), São Leopoldo — Brazil, partially supported by Padre Milton Valente scholarship. Rodrigo M. Guerra thanks Conselho Nacional de Desenvolvimento Científico e Tecnológico (CAPES — Proc. BEX 10863/14-1) for supporting an internship at Florida State University (FSU). This paper is contribution number R-178 of Instituto de Estudios Andinos “Don Pablo Groeber” (IDEAN-CONICET). This work was partially supported by grant ANPCYT, PICTO-DNA 2010-00112. 
593 |a itt Fossil, Instituto Tecnológico de Micropaleontologia, Universidade do Vale do Rio dos Sinos (UNISINOS), Av. UNISINOS, 950 B. Cristo Rei, São Leopoldo RS, CEP: 93.022-000, Brazil 
593 |a Instituto Antártico Argentino (IAA), Buenos Aires, Argentina 
593 |a IDEAN-CONICET, Departamento de Ciências Geológicas, Universidad de Buenos Aires, Pabellón II, Ciudad Universitaria, Buenos Aires, 1428, Argentina 
593 |a Department of Earth, Ocean and Atmospheric Sciences, Florida State University, Tallahassee, FL 32306-4100, United States 
593 |a Department of Geography, Centre for Environmental Geochemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, United Kingdom 
593 |a British Geological Survey, Keyworth, Nottingham, NG12 5GG, United Kingdom 
690 1 0 |a ATLANTIC OCEAN 
690 1 0 |a BIOSTRATIGRAPHY 
690 1 0 |a CALCAREOUS NANNOFOSSILS 
690 1 0 |a LATE CRETACEOUS 
690 1 0 |a PALEOCEANOGRAPHY 
690 1 0 |a BIOSTRATIGRAPHY 
690 1 0 |a CAMPANIAN 
690 1 0 |a CRETACEOUS 
690 1 0 |a DEEP SEA DRILLING PROJECT 
690 1 0 |a MAASTRICHTIAN 
690 1 0 |a MAGNETOSTRATIGRAPHY 
690 1 0 |a NANOFOSSIL 
690 1 0 |a PALEOCEANOGRAPHY 
690 1 0 |a ATLANTIC OCEAN 
690 1 0 |a ATLANTIC OCEAN (SOUTH) 
700 1 |a Concheyro, A. 
700 1 |a Wise, S.W., Jr. 
700 1 |a Kender, S. 
700 1 |a Fauth, G. 
773 0 |d Elsevier B.V., 2016  |g v. 452  |h pp. 55-67  |p Palaeogeogr. Palaeoclimatol. Palaeoecol.  |x 00310182  |w (AR-BaUEN)CENRE-1607  |t Palaeogeography, Palaeoclimatology, Palaeoecology 
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