Chiastolite | 355 million years
At the Local Natural Monument of Canto Marinho, the occurrence of typical medium-grade contact metamorphism occurs, such as garnet and staurolite, which are exclusive to this area of the Viana do Castelo coast. They were generated from the heat transfer of the Bouça de Frade Plutonite installation and enabled the formation of typical medium grade metamorphism minerals, such as garnet and staurolite, and the growth of chiastolite crystals that reach 7 cm.
References:
Carvalhido, Ricardo (2018). Livro de Pedra, Monumentos Naturais Locais de Viana do Castelo – Catálogo. Câmara Municipal de Viana do Castelo, 2ª edição.
At the Local Natural Monument of Canto Marinho, the occurrence of typical medium-grade contact metamorphism occurs, such as garnet and staurolite, which are exclusive to this area of the Viana do Castelo coast. They were generated from the heat transfer of the Bouça de Frade Plutonite installation and enabled the formation of typical medium grade metamorphism minerals, such as garnet and staurolite, and the growth of chiastolite crystals that reach 7 cm.
References:
Carvalhido, Ricardo (2018). Livro de Pedra, Monumentos Naturais Locais de Viana do Castelo – Catálogo. Câmara Municipal de Viana do Castelo, 2ª edição.
Location
Local Natural Monument of the Magmatic Drops of Canto Marinho is located in the intertidal area of the coast of Carreço, south of the Local Natural Monument of the Alcantilado de Montedor.
Coordinates
Lat: 41.737255
Long: -8.875257
Theme
Point of interest
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Technical details
References and scientific articles
Carvalhido, Ricardo (2018). Livro de Pedra, Monumentos Naturais Locais de Viana do Castelo – Catálogo. Câmara Municipal de Viana do Castelo, 2ª edição.
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