Estudio palinológico preliminar de cerro Fósil, península Fildes, isla Rey Jorge, Antártica
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Date
1990
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Abstract
En este estudio se describen palinomorfos encontrados en el cerro Fósil, península Fildes., isla Rey Jorge, Antártica. El conjunto de polen y esporas está representado por Proteacidites, Gunnerites, Nothofagidites (grupos fusca y brassi). Araucariacites, Phyllocladidites, Podocarpites, Dacrydiumites y cuatro tipos de esporas. Los palinomorfos encontrados confirman la edad Eoceno Inferior sugerida para la macroflora. Se sugiere probable contemporaneidad y relaciones entre los polen de Nothofagidites y las impresiones de hojas de Nothofagus subferruginea y Notofagus densinervosa, encontradas en los mismos sedimentos. Además, se discuten las diferencias entre los antecedentes
proporcionados por la microflora y la macroflora.
Palynomorphs found in the Fossil Hill at Peninsula Fildes, King George Island, Antarctica are studied in this paper. The assemblage Proteacidites, Gunnerites, Nothofagidites (fusca and brassi group), Araucariacites, Phyllocladidites, Podocarpites, Dacrydiumites and four sporomorphs types confirms the Lower Eocene age given by the macroflora. Contemporaneousnes and relations between Nothofagus densinervosa leaves, found on the same sediments, are suggested. Differences between micro and macroflora assemblage are also discussed.
Palynomorphs found in the Fossil Hill at Peninsula Fildes, King George Island, Antarctica are studied in this paper. The assemblage Proteacidites, Gunnerites, Nothofagidites (fusca and brassi group), Araucariacites, Phyllocladidites, Podocarpites, Dacrydiumites and four sporomorphs types confirms the Lower Eocene age given by the macroflora. Contemporaneousnes and relations between Nothofagus densinervosa leaves, found on the same sediments, are suggested. Differences between micro and macroflora assemblage are also discussed.
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Keywords
Palinología, Terciario inferior, Cerro Fósil
Citation
Serie Científica, nº 40, pp. 21-39, 1990