Math is becoming more and more useful to geologists. Mathematical geology can be an essential aid in formulating models and scientific theories to bring together different geological phenomena.

What kind of math do you need for geology?

Basic math is a necessity - 60% grade to pass. You need a good grasp of trigonometry, algebra, and calculus.

Can I study geology without maths?

If you are in India it is possible to do Geology without Maths. The problem here is, most of the Indian Universities ask for Maths as one of your subjects in 11th and 12th ( +1 & +2 ). But in bachelor's you can choose Physics, Chemistry, Statistics, Biology etc as Allied subjects.