field geosciences teaching module: geoparks and geosites geopark naturtejo meseta meridional portas...
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Field Geosciences Teaching Module: Geoparks and GeositesGeopark Naturtejo Meseta Meridional
Portas de Almourão: What is the sustainability of a Project to build a
dam in this geosite?
Geological Map of Naturtejo Global Geopark
Portas de Almourão
Portas de Almourão
Geodynamic evolution of the landscape
500 million years ago there was an ocean where sand and clay sediments have been deposited
300 million years ago the collision of tectonic plates lead to the formation of a mountain belt by deformation of the sedimentary rocks previously formed
Geodynamic evolution of the landscape
About 2 million years ago the Ocreza river incised its valley across Ródão Syncline
Albarda Fold
Skolithos trace fossils
Ripple marks
What is the meaning of the name “Albarda” for the fold?
Roman Gold Mine
How was the gold mined?
Where did the gold come from?
Landslide and scree deposits
The landslides and scree deposits along the valley slopes are the result of the erosion of the quartzite crests in very steep slopes
What can be the importance of building a dam in this place?
Natural and Cultural Heritage
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