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The Palaeolithic occupation of southern Alentejo: the Sado

The Sado River Drainage Survey project (2004-2008) was designed to fill a significant gap in our knowledge of the prehistory of Portugal. Southern Alentejo constitutes nearly one third of the total land mass of continental Portugal, but has received comparatively little attention from Palaeolithic archaeologists. Practically nothing was known about the prehistory of the Sado River basin, which includes the sout...

Holocene paleoenvironmental evolution of the Aljezur alluvial

The 36 km-long Aljezur stream outlets at the southern tip of the Amoreira beach in the SW coast of Portugal, 150km south of Lisbon. In its seaward 5km, the stream meanders across a wide (275-670m) sediment choked flat-flored valley from which one 25m-long core was obtained about 4km upstream of the coast. The core sampled Pleisto- Holocene sediments resting over Paleozoic basement. Sedimentological and paleoenv...

The Palaeolithic occupation of southern Alentejo: the Sado

ABSTRACT The Sado River Drainage Survey project (2004-2008) was designed to fill a significant gap in our knowledge of the prehistory of Portugal. Southern Alentejo constitutes nearly one third of the total land mass of continental Portugal, but has received comparatively little attention from Palaeolithic archaeologists. Practically nothing was known about the prehistory of the Sado River basin, which includes...

Paleogeographic evolution of the Nazaré-Salgado coastal zone (Portugal) during ...

The Nazaré-Salgado coast develops NE-SW along 7km, some 100km north of Lisbon. About 5ka years ago, the Nazaré-Salgado coast formed the coastline of the Pederneira lagoon, with a rocky inlet connecting the sea and an inner basin that silted up in the late 17th century AD. Two cores were taken from the plains and four trenches dug in the southern dune ridges to validate GPR data; morphological changes since 19...

Análise do processo defensivo no futebol : acções e comportamentos defensivos a...

Mestrado em Treino de Alto Rendimento ; O objectivo do presente estudo consiste em identificar as acções e comportamentos defensivos associados à recuperação da posse de bola em diferentes contextos de jogo. Foram analisados dez jogos disputados por uma equipa da Liga Portuguesa de Futebol Profissional – Liga Sagres 2009-2010 e da Taça de Portugal 2009-2010. A amostra foi composta por 801 acções de recuperação...

Preparação e caracterização elétrica de sensores de metanol à base de nanocompó...

Neste trabalho, compósitos híbridos metal/polímero (nanopartículas de ouro/polipirrol) foram sintetizados a partir da polimerização química do pirrol sobre a superfície de nanopartículas metálicas estabilizados por um agente surfactante (dodecil sulfato de sódio). A posterior solubilização do compósito em álcool polivinílico permitiu a obtenção de uma matriz orgânica auto-sustentável, flexível, com boa resistên...

Sedimentary structure of the Nazaré coastal dunes (Portugal)

Micropalaeontological record of Holocene estuarine and marine

The Corgo do Porto is a small tributary of the Mira River, outleting 3.5 km upstream of its mouth. The valley is flat-floored due to terrigenous siltation and forms an alluvial plain reclaimed for agriculture/aquaculture. These conditions were quite distinct in the recent past because of extensive marine flooding of this area during the high-rate positive eustatism that followed the Last Glacial Maximum. The Ho...

Longshore sediment transport in the Tróia-Sines Littoral Ribbon (SW Portugal).

Longshore sediment transport in the Tróia-Sines litoral ribbon was evaluated by map comparison and applying energy flux method using numerical models. Results yielded a longshore transport residual rate in the order of 10 5 m3y-1 towards north. The comparison of the results with the ones obtained thought the analysis of the secular coastline evolution show that the empirical coefficient between the energy flux...

Morphdynamics of Beaches in the Tróia-Sines Littoral Ribbon (SW Portugal)

In the Tróia-Sines littoral ribbon five beaches were monitored in order to evaluate morphological and textural changes. The textural analysis reveals a southward coarsening trend that reflects an increase in the wave energy. The morphodynamic data indicate that the modal stages are intermediate to reflective, and that the available beach volume increases southwards. During storm periods the volumetric changes r...