Encontrados 3 documentos, a visualizar página 1 de 1
Records of human occupation from Pleistocene river terrace and aeolian sediment...
Cunha, Pedro Proença; Almeida, Nelson; Aubry, Thierry; Martins, António Antunes; Murray, Andrew; Buylaert, Jan-Pieter; Sohbati, Reza; Raposo, LuisIn the uppermost reach of the Lower Tejo River (eastern central Portugal), where the river crosses two quartzite ridges that separate the Ródão (upstream) and Arneiro (downstream) depressions, Palaeolithic artefacts have been recovered from three lower river terrace levels and a cover unit of aeolian sands. This paper presents data on the discovery of archaeological artefacts from the terrace levels and the aeo...
K-feldspar IRSL dating of a Pleistocene river terrace staircase sequence of the...
Martins, António; Cunha, Pedro; Buylaert, Jan Pieter; Huot, Sébastien; Murray, Andrew; Dinis, Pedro; Stokes, MartinWe present the results of K-feldspar IRSL dating of the four lower terraces (T3–T6) of the Portuguese Tejo River, in the Arripiado-Chamusca area. Terrace correlation was based upon: a) analysis of aerial photographs, geomorphological mapping and field topographic survey; b) sedimentology of the deposits; and c) luminescence dating. Sediment sampled for luminescence dating gave unusually high dose rates, of betw...
Dating the Tejo river lower terraces in the Ródão area (Portugal) to assess the...
Cunha, Pedro P.; Martins, António A.; Huot, Sebastien; Murray, Andrew; Raposo, LuísThe Tejo river is one of the major drainages in Iberian Peninsula; it is a long-lived system (ca. 3.4 Ma) and provides an archive of long-term landscape development and environmental change controlled by tectonics, climate and eustasy. The most upstream Portuguese reach of the Tejo river, ~ 200 km from the Atlantic coast, shows evidence for five fluvial terraces (T1 to T5) with elevations reaching more than 120...
| Financiadores do RCAAP | |||||||
|
|
|
|
|
|
||