All tree leaves are suitable to supply carbonaceous material.

Because it is composed of primitive carbonaceous materials, it has a very dark surface.

He wanted a metal mass with some carbonaceous material.

The conversion efficiency can be rather low due to elutriation of carbonaceous material.

The most widely known example is radiocarbon dating used to determine the age of carbonaceous materials.

The specimen contained a number of crystals associated with carbonaceous material.

One of the ways this goal can be achieved is through the study of carbonaceous material as found in some meteorites.

Metamorphism of the carbonaceous material is expressed in the graphitisation process.

Black shale results from the presence of greater than one percent carbonaceous material and indicates a reducing environment.

The latter could be made of rock and carbonaceous material including heavy organic compounds.