How much does an Assoc. Professor - Geological Sciences make in Michigan? The average Assoc. Professor - Geological Sciences salary in Michigan is $80,368 as of November 25, 2019, but the range typically falls between $67,014 and $107,392. Salary ranges can vary widely depending on the city and many other important factors, including education, certifications, additional skills, the number of years you have spent in your profession.