This photo shows researchers doing field sampling of a pyrite-rich black shale outcrop in China. The weathering of such sediments, which contain sulfur originally buried from the ocean ...

Although black shale is the dominant lithology, it also contains lighter shales and interbedded limestone layers due to sea level variation during its deposition almost 400 million years ago.

Park naturalist Jake Kudrna refers to it as Junction Falls because two creeks, each with their own waterfalls, come together in a ravine carved out of black shale. Crystal clear water pushes ...

Octava’s two metallurgical holes confirm historical rare earth and lithium hits from Byro project’s black shale Black shale ...