Columnar Basalt Formation - Quickly Described 😍😍😎 Columnar Basalt is the result of cooling and cracking of an unusually thick basaltic lava flow. Columns are often 50 feet high or more! Geology Love

This is basalt, a black volcanic rock that forms when lava cools and hardens. It’s known for being very hard, resistant to heat, and durable, which is why it’s commonly used in road construction. In fact, the small stones mixed into the asphalt roads we walk and drive on are usually made of basalt. Even though it’s a strong material, basalt is also brittle. That means it can break easily if there’s a small crack. With the right technique, a worker can split a large piece of basalt using only a l

Examine the origins and characteristics of two types of rock—basalt and granite—that cover the ocean floor and much of the land surface of Earth, in this video from "NOVA: Making North America: Origins" https://bit.ly/30cWPtZ | NOVA Education