Little Finand, Gold Butte National Monument, Nevada
Wind carved Navajo sandstone with tafoni rock formations. Tafoni occur in various settings and rocks as here in sandstone. Here, they are small cavities in this sandstone presumably generated by salt crystallisation pressure, where by the crystal occupies a slightly increased volume, resulting in fracture of the rock with subsequent erosion. The initial nucleus for crystallization can be formed by organisms living in the sandstone.
Little Finand, Gold Butte National Monument, Nevada
Wind carved Navajo sandstone with tafoni rock formations. Tafoni occur in various settings and rocks as here in sandstone. Here, they are small cavities in this sandstone presumably generated by salt crystallisation pressure, where by the crystal occupies a slightly increased volume, resulting in fracture of the rock with subsequent erosion. The initial nucleus for crystallization can be formed by organisms living in the sandstone.