Sentence examples for formation of coal from inspiring English sources

The formation of peat is the first step in the formation of coal.

The formation of coal is a relatively straightforward geochemical process that can readily be traced through its successive stages.

He therefore takes a long view of the story — so long that he goes back to the Cretaceous to explain the formation of coal.

He therefore takes a long view of the story—so long that he goes back to the Cretaceous to explain the formation of coal.

The formation of coal deposits continued through the Permian, Triassic, and Jurassic periods into the "second coal age," which includes the Cretaceous, Paleogene, and Neogene periods.

As explained above, during the formation of coal and subsequent geologic activities, a coal seam may acquire mineral matter, veins of clay, bands of rock, and igneous intrusions.

Crustal thickening led to uplift, erosion, and extensional collapse of the central part of the belt in the Massif Central and Bohemian Massif and thus to formation of coal-bearing basins in the Carboniferous Period.

Physical adsorption of oxygen on the coal surface; Chemical absorption (chemisorption), which leads to the formation of coal-oxygen complexes and oxygenated carbon-species; Chemical reaction.

These steps are as what follow (Mohalik et al. 2009; Yuan and Smith 2012): (1) Physical adsorption of oxygen on the coal surface;   (2) Chemical absorption (chemisorption), which leads to the formation of coal-oxygen complexes and oxygenated carbon-species;   (3) Chemical reaction.  .

Dr. Finkelman speculated that the rain might have dissolved surface rocks composed of silica, which then might have worked its way into developing formations of coal.

Coal is absent in some areas (such as Greenland and much of northern Canada) because the rocks found there predate the Carboniferous Period and these regions, known as continental shields, lacked the abundant terrestrial plant life needed for the formation of major coal deposits.