Sentences with phrase «rich mudstone»

Farther up the mountain's flanks is another stretch of clay - rich mudstone.

The Marcellus Shale formation, an organic - rich mudstone running from West Virginia to New York, was one of the first to be exploited by fracking.

This last hole generated dark green to black ash - rich mudstone at a depth of 53.4 m. Management hasn't seen this before, and assumes that this type of claystone doesn't differ a lot recovery-wise, and just has a different color, but has to sample and test this first of course to be sure.

The first hole also generated dark green to black ash - rich mudstone, starting at around 50m depth, just like a few other, earlier holes did in the 2017 program on Dean.