phyllite

These can include fine-grained schist and phyllite fragments, among others.

Above the bedrock we find, in varying thickness, a layer of phyllite.

It contains traces of pyrite and is overlain by phyllite.

About 65% of the dam's foundation area is founded on quartzite and phyllite bedrock.

Occasional dark soils are found due to extensive existence of phyllite and schists.

Below the island the tunnel reaches a section of greenstone, before it higher up again runs through more phyllite.

It is founded completely on phyllite and schist bedrock.

Some specific types of rock in the Piedmont are schist, gneiss, and phyllite among others.

The tunnel runs through an area composed mostly of gneiss, phyllite and greenstone.

Schist forms at a higher temperature and has larger mica grains than phyllite.

Xichun Formation slate and phyllite is from the lower Oligocene.

Slate, phyllite and sandstone are most common.

Nanyan Group in southwest has grey phyllite.

The area was made of phyllite and was the geologically most unstable area on the route.

Phyllite has a good fissility (a tendency to split into sheets) and will form under low grade metamorphic conditions.

Phyllite is commonly found in the Dalradian metasediments of northwest Arran.

Greenstone (metabasalt), phyllite and schist release up to 30-50% of the nitrogen pool.

The mountain plant life is especially rich since the bedrock contains calcium rich deposits of phyllite.

It contains carbonaceous phyllite with interbeds of crystalline limestone.

The slate became known as Ijamsville Phyllite.

The rocks in the Maláguide thrust sheet include phyllite, metagreywacke, limestone, metaconglomerate.

The highly shortened and foliated phyllite began as a mudstone which was metamorphosed to shale.

Bilushan Formation contains slate and phyllite from the Eocene.

Metamorphism of argillites produces slate, phyllite, and pelitic schist.

Underneath the sparagmite layer, lies a layer of extremely nutritious slate, called phyllite.