Complex sentence: These ranges exhume the same types of rocks in their cores, including deep crustal gneiss, and both ranges correspond to uplifts of more than 2,500 metres, much of which has since been eroded.
Split into simpler sentences: These ranges exhume the same types of rocks in their cores, including deep crustal gneiss. Both ranges correspond to uplifts of more than 2,500 metres, much of which has since been eroded.