The formation is rare in the geologic world and ranks as one of the world's finest examples of columnar basalt. Its columns ...

Miocene columnar basalts that contributed to the formation of the Isthmus of Panama are removed for the expansion of the Panama canal. This material relates to a paper that appeared in the Aug. 17 ...

In northern Türkiye's Bartın, basalt rocks formed million years ago by the cooling and crystallization of lava from volcanic eruptions ...