lignitic

SaskPower primarily burns high-quality lignitic coal in its coal fired plants.

At the base of the shell-bearing clays in southeast London there are pebble beds and lignitic layers.

Warren Hill itself is composed of Tertiary Bracklesham Beds, a mixture of clays and marls with overlying sandy and lignitic beds.

The Bracklesham Beds, in geology, are a series of clays and marls, with sandy and lignitic beds, in the Middle Eocene of the Hampshire Basin, England.

SMM P76.28.247 was found semi-articulated in the lower part of the Bullion Creek Formation, near the base of a lignitic clay layer deposited in a marsh setting on a floodplain.

In most areas, the Naturita Formation is composed of a lower unit of conglomeratic sandstone, a middle part of lignitic mudstones and coal, and fine- to medium-grained sandstones in the upper part.