I am not a geologist/geology student but I want to quickly know the influence of volcanic rock type to geothermal suitability. I have read read some journals and online articles but it seems there are a lot of ways different mappers/researchers name geologic unit. What I am trying to do is rank types of volcanic rocks ex. the legend on the image to most influential to less influential to the geothermal suitability. A direct answer is cool but also welcome articles or readings regarding this. Thanks!