https://opentextbc.ca/geology/chapter/9-2-the-temperature-of-earths-interior/ https://opentextbc.ca/geology/chapter/9-2-the-temperature-of... This contains som

https://opentextbc.ca/geology/chapter/9-2-the-temperature-of-earths-interior/ https://opentextbc.ca/geology/chapter/9-2-the-temperature-of... This contains some graphs (the 2nd graph is most relevant) that show how the temperature changes as a function of depth. It increases much faster than I thought.