Fire-Breathing Mountain Fueled by Mysterious Deep-Earth Methane Production

https://www.livescience.com/65386-abiotic-methane-makes-mountains-breathe-fire.html?fbclid=IwAR27KejTbwzMoAUD4RkmjyIwJrwE-HtlImju03NA-eK3gfDPs-xAqOfWGdI
Rather, the gas fueling Turkey's eternal flame is known as abiotic methane, meaning it is produced spontaneously through chemical reactions between rocks and water deep underground — no decaying plant or animal matter necessary.
In the past decade, scientists working at the Deep Carbon Observatory, an international group studying Earth's deep biosphere and the many millions of undiscovered microbial species living there, have identified hundreds of abiotic methane deposits on land and sea around the world.