Palynostratigraphy of upper Paleozoic sequences in central‐western Argentina

Lower Carboniferous to Permian palynological zones are described from sections in central‐western Argentina. In ascending stratigraphie order these zones are: (1) the Cordylosporites‐Verrucosisporites (CV) Assemblage Biozone (spanning the Malimán and Cortaderas formations); (2) the Raistrickia densa...

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Autores principales: Césari, S.N., Gutierrez, P.R.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01916122_v24_n1_p113_Cesari
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_01916122_v24_n1_p113_Cesari2023-10-03T15:08:59Z Palynostratigraphy of upper Paleozoic sequences in central‐western Argentina Césari, S.N. Gutierrez, P.R. Lower Carboniferous to Permian palynological zones are described from sections in central‐western Argentina. In ascending stratigraphie order these zones are: (1) the Cordylosporites‐Verrucosisporites (CV) Assemblage Biozone (spanning the Malimán and Cortaderas formations); (2) the Raistrickia densa‐Convolutispora muriornata (DM) Assemblage Biozone (which is subdivided into: Sub‐biozone A in the Guandacol and equivalent formations, Sub‐biozone B in the Tupe Formation and equivalents, and Sub‐biozone C in the upper part of the Santa Máxima and El Imperial formations); (3) the Fusacolpites fusus‐Vittatina subsaccata (FS) Interval Biozone in the Bajo de Véliz and Tasa Cuna formations and equivalents, and (4) the Lueckisporites‐Weylandites (LW) Assemblage Biozone in the De La Cuesta and Yacimiento Los Reyunos formations. The oldest biozone (CV) is assigned to the Early Carboniferous and the overlying DMB iozone to the Late Carboniferous. The uppermost FS and LW biozones are Permian in age. Palynological records show the impact of the Early‐to‐Late Carboniferous glacial event, which caused significant changes in the composition of the assemblages from this interval. Further studies are necessary to calibrate a regional geological time scale in Gondwana, which is essential for precise correlation. © 2000 by AASP Foundation. Fil:Césari, S.N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Gutierrez, P.R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01916122_v24_n1_p113_Cesari
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description Lower Carboniferous to Permian palynological zones are described from sections in central‐western Argentina. In ascending stratigraphie order these zones are: (1) the Cordylosporites‐Verrucosisporites (CV) Assemblage Biozone (spanning the Malimán and Cortaderas formations); (2) the Raistrickia densa‐Convolutispora muriornata (DM) Assemblage Biozone (which is subdivided into: Sub‐biozone A in the Guandacol and equivalent formations, Sub‐biozone B in the Tupe Formation and equivalents, and Sub‐biozone C in the upper part of the Santa Máxima and El Imperial formations); (3) the Fusacolpites fusus‐Vittatina subsaccata (FS) Interval Biozone in the Bajo de Véliz and Tasa Cuna formations and equivalents, and (4) the Lueckisporites‐Weylandites (LW) Assemblage Biozone in the De La Cuesta and Yacimiento Los Reyunos formations. The oldest biozone (CV) is assigned to the Early Carboniferous and the overlying DMB iozone to the Late Carboniferous. The uppermost FS and LW biozones are Permian in age. Palynological records show the impact of the Early‐to‐Late Carboniferous glacial event, which caused significant changes in the composition of the assemblages from this interval. Further studies are necessary to calibrate a regional geological time scale in Gondwana, which is essential for precise correlation. © 2000 by AASP Foundation.
format JOUR
author Césari, S.N.
Gutierrez, P.R.
spellingShingle Césari, S.N.
Gutierrez, P.R.
Palynostratigraphy of upper Paleozoic sequences in central‐western Argentina
author_facet Césari, S.N.
Gutierrez, P.R.
author_sort Césari, S.N.
title Palynostratigraphy of upper Paleozoic sequences in central‐western Argentina
title_short Palynostratigraphy of upper Paleozoic sequences in central‐western Argentina
title_full Palynostratigraphy of upper Paleozoic sequences in central‐western Argentina
title_fullStr Palynostratigraphy of upper Paleozoic sequences in central‐western Argentina
title_full_unstemmed Palynostratigraphy of upper Paleozoic sequences in central‐western Argentina
title_sort palynostratigraphy of upper paleozoic sequences in central‐western argentina
url http://hdl.handle.net/20.500.12110/paper_01916122_v24_n1_p113_Cesari
work_keys_str_mv AT cesarisn palynostratigraphyofupperpaleozoicsequencesincentralwesternargentina
AT gutierrezpr palynostratigraphyofupperpaleozoicsequencesincentralwesternargentina
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