What is Coalification?

Aidan Published on Sep 23, 2022

How is coal formed? Is it made of dinosaur remains? This entry explains everything you need to know.

What do coal and dinosaurs have in common? The simple answer is the misconception that coal comes from fossilised dinosaurs. It is not true because dinosaurs roamed the earth many millions of years after the Coalification process took place. 

A brilliant marketing campaign by Sinclair Oil Corporation probably didn’t help the situation. In 1933, Sinclair sponsored a dinosaur exhibit at the World’s Fair in Chicago. Their campaign stated that the world’s oil reserves were formed during the era that dinosaurs existed. The exhibit proved successful, with the company tailoring a logo with an Apatosaurus (previously known as a Brontosaurus) as its mascot. Later, when scientists produced factual evidence of where fuel comes from, people’s viewpoints changed. The brand is still around today, with the prominent green and red logo being one of the most recognised icons in America. So, this leads to the question: Where do fossil fuels, specifically coal, come from? 

Millions of years ago, the earth was covered in vast areas of swamp-like vegetation. When this vegetation came to the end of its life cycle, it naturally fell into the swamps and natural water deposits. Due to a lack of oxygen, the decaying process stopped, thus preserving the vegetation. Over the years, the matter became compressed and caused a pressure build-up. With pressure comes heat; these two factors cause physical and chemical changes. This transformed the vegetation into peat. Over many more millions of years, this peat-like substance is formed into lignite and coal. There you have it! So, contrary to popular belief, dinosaurs aren’t the source of what fuels our everyday lives. 

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