Complex sentence: He attended the University of Michigan where he earned his bachelors degree in 1957 and his masters degree in 1958, and after attended Harvard University where in 1962 he earned his Ph. D. in Geology.
Split into simpler sentences: He attended the University of Michigan where he earned his bachelors degree in 1957 and his masters degree in 1958. After, he attended Harvard University where in 1962 he earned his Ph. D. in Geology.