Histórias da Geologia

Este blog pretende ser um espaço de reflexão sobre a evolução do conhecimento geológico ao longo dos tempos, principalmente a partir do século XVII, não esquecendo porém as pequenas histórias que fazem a grande história

domingo, julho 02, 2006

Museu Geológico - Trilobites de Arouca


Foi inaugurada, no dia 28 deste mês, uma nova exposição temática no Museu Geológico: Trilobites gigantes de Arouca. As trilobites expostas foram descobertas em rochas que são exploradas e afloram na louseira de Canelas, pertencentes essencialmente à Formação de Valongo, do Ordovícico Médio, que é constituída por ardósias (xistos ardosíferos). 'Há notícia da utilização de ardósia na região de Arouca desde o séc. XVIII e referência à sua exploração em Canelas a partir de 1820'.

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