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Basalt Columns, Iceland

Basalt columns, Iceland. Basalt is an extrusive igneous rock, which means it forms from the cooling of lava on the surface. Contraction of the lava as it cools leads to the geometry of the columns, which have either hexagonal or pentagonal cross-sections. The black sand is formed by the erosion of the columns by the sea.
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Titre:
Basalt Columns, Iceland
Légende: Voir la traduction automatique
Basalt columns, Iceland. Basalt is an extrusive igneous rock, which means it forms from the cooling of lava on the surface. Contraction of the lava as it cools leads to the geometry of the columns, which have either hexagonal or pentagonal cross-sections. The black sand is formed by the erosion of the columns by the sea.
Crédit:
Album / Science Source / John Shaw
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Modèle: Non - Propriété: Non
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Taille de l'image:
4188 x 2787 px | 33.4 MB
Taille d'impression:
35.5 x 23.6 cm | 14.0 x 9.3 in (300 dpi)
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