Complex sentence: This implies that maximum temperature experienced by the rock is insensitive to erosion rate, thus both the the evidence of the maximum pressures and temperatures experienced by the buried layers can be imprinted in the underlying metamorphic rocks.
Split into simpler sentences: This implies that maximum temperature experienced by the rock is insensitive to erosion rate. Thus both the evidence of the maximum pressures and temperatures experienced by the buried layers can be imprinted in the underlying metamorphic rocks.