ISES   20394
INSTITUTO SUPERIOR DE ESTUDIOS SOCIALES
Unidad Ejecutora - UE
artículos
Título:
Geomorphological and chronostratigraphical context of the La Sala lithic artifacts (Amaicha basin - Northwest Argentina)
Autor/es:
BÁEZ, WALTER ARIEL; SAMPIETRO-VATTUONE, MARIA MARTA; SOLA, ALFONSO; PEÑA-MONNÉ, JOSÉ LUIS; SOMONTE, CAROLINA
Revista:
Journal of Archaeological Science: Reports
Editorial:
Elsevier
Referencias:
Año: 2020 vol. 29 p. 1 - 12
ISSN:
2352-409X
Resumen:
The objective of this paper is to make a detailed and multiproxy geomorphological study of the middle section ofAmaicha River in Northwest Argentina. The obtained evolutionary model and chronological context will belinked with previous models to include the study area in a regional context. Finally, our model will be used as amorphochronological base to contextualize the lithic materials found in an area which previously lacked stratifiedrecords and absolute datings. The geomorphological study shows the high dynamic of the sector recordedin the ravine deposits during the Holocene. This process is reflected by the aggradation/degradation stages. Abasal unit chronologically assimilated to the Pleistocene (Pl unit) is overlapped by four Holocene morphosedimentaryunits (H1 to H4). These units are arranged as terraces following an alternating succession of aggradativeand degradative phases. The interbedding of tephra layers of known age, as well as radiometrically dated peatlevels and soils, enables a very complete chronology of the Holocene sequence to be made. Lithic artifacts werefound in the s1 soil, dated to 5468?4875 cal BP, providing one of the few records of stratified archaeological sitesin the region for those times. This paper constitutes an initial approach in the development of a regional evolutionarymodel covering the period from the Late Pleistocene until the present.