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Estudo multidisciplinar no plutão granítico de Valpaços

Geocronologia e petrogénese do plutonismo tardi-varisco (NW de Portugal): sínte...

No NW de Portugal ocorre um importante volume de granitóides, que correspondem a sucessivos pulsos magmáticos principalmente instalados na etapa pós-colisional da orogenia varisca (290-321 Ma). Trata-se de plutonismo com assinaturas químicas e isotópicas diversas e forte variabilidade composicional. No presente trabalho, apresenta-se uma síntese dos dados geocronológicos e petrogenéticos disponíveis e discute-s...

A scientific-didactic analysis of school manuals: a study based in the " Tecton...

The evaluation issue on school textbooks has been widely disseminated in Portugal because, in addition to assessing the quality of the manual and its use, it requires a critical look of the scientific and didactic approaches of the educational contents of the program. On the other hand, the curriculum orientations proposed by the Ministry of Education in Portugal indicated an increasing, and almost inevitable, ...

Hercynian acid magmatism and related mineralizations in Nortern Portugal

Cabeceiras de Basto (CB), Vieira do Minho (VM) and Vila Pouca de Aguiar (VPA) granite plutons are located in the so-called Central Iberian Zone, northern Portugal. U-Pb zircon and monazite geochronology yielded the minimum emplacement age of 311 Ma for CB and the crystallization ages of 311 Ma for VM and 299 Ma for VPA, constraining the time interval of the third Hercynian deformation phase, relative to which t...