On the banks of the Columbia River, tall columns of rock poke out from the cliffs. “So you see all of these black rocks that are on either side of us, on either side of the river? Those are basalts.

As Pangea broke up and the plates drifted apart 200 million years ago, magma seeped out of the fissures in the Earth’s crust. That magma became flows of lava, and that lava, rapidly cooling in the air ...

Researchers at the US Department of Energy’s Pacific Northwest National Laboratory (PNNL) in Richland, Washington, began the injections into the Columbia River Basalt formation near the town of ...

The distinct hexagonal columns found at Kiama's Bombo Headland Quarry on the New South Wales south coast, like those of the Giant's Causeway in Ireland, are a natural phenomenon offering geologists ...