C🌿🦴->⚫🛢️

#carbon compounds #fossil fuels #ancient life #hydrocarbons #coal formation #oil formation #kerogen

🪨⛽⚫️

#oil shale #gas shale #source rock #fossil fuel #petroleum geology #kerogen

🪨💧⚫⛽

#oil shale #shale oil #kerogen #fossil fuel #hydrocarbon