Hydrogen from geological formations makes up about 10% of the flammable gases that form the Yanartaş flames near Cirali, ...

The Germans had held the high ground for months but had posted no sentries on the cliff side of the ridge because they were convinced no one could climb 3,000 feet of shale. Using ropes and iron ...

For over three decades E. I. du Pont de Nemours & Co. has been trying to devise an economical flotation method for separating impurities such as shale and slate from low-grade anthracite coal.

This walk is a wonderful opportunity to learn more about Scotland’s slate quarrying history and geology, while enjoying nature-packed trails and woodland paths. Ballachulish was one of two ...

Hessling added that domestic crude from the Bakken shale formation in North Dakota ... "But we can minimize what that is and introduce a lighter slate." Independent (LON:IOG) refiner Delek ...

I put the boots through their paces in Dartmoor and Snowdonia (Jon Axworthy) To test the best men’s walking boots and shoes, I headed to Dartmoor and the slate ... from shale and loose rock ...

We headed to Dartmoor and the slate trails of Snowdonia ... to offer increased protection from shale and loose rock trails. Underneath, it offers plenty of grip, and we found it was particularly ...