CADIC   02618
CENTRO AUSTRAL DE INVESTIGACIONES CIENTIFICAS
Unidad Ejecutora - UE
capítulos de libros
Título:
Diatom analysis in Santa Cruz Central Massif (Patagonia, Argentina): Preliminary Results
Autor/es:
FERNÁNDEZ, MARILÉN; SALEMME, MÓNICA
Libro:
South American Archaeology
Editorial:
Texas A&M University Press
Referencias:
Lugar: Texas; Año: 2012; p. 41 - 46
Resumen:
Diatoms studies in archaeological sites have not been used in the Patagonian archaeology up to now. However, the diatom analysis is important from a methodological point of view for reconstruction of past environments, identification of environmental regional process that affects the site localization and its function in a network. In these sense, the diatom analysis was incorporated in the study of archaeological sites, with the goal of a better understanding of the palaeoenvironmental scenery that found the first Americans. The main aim was on one hand, to know if the human occupation or the taphonomic processes in Cueva Maripe (47° 51´05? S - 68° 56´03? W) influenced the conservation of silica remains which are indicative of diatom presence; on the other hand, to compare the results with those obtained through phytolith analysis. Following those aims, the sampling was conducted in the stratigraphic levels of this archaeological site in the grids D5 (north chamber) and A11 (south chamber) and also in places situated near the site (gully and active spring). Probably before 9800 years AP, more humid conditions, with higher precipitation and melt waters, became the cave into a shallow water pond. The flora which dominated this moment is principally periphytic, such as Pinnularia sp., Diploneis sp., Denticula sp., Nitzschia sp. among some fragments and bad preserved valvar remains.