Sorry. I have complete missed this question. For differences between intensification (exploitation) and diversification (exploration) please see the paper:
Črepinšek et al. 2013: Exploration and exploitation in evolutionary algorithms: A survey. ACM Comput. Surv. 45(3): 35, 2013.
I am not aware any work which explicitely connects intensification (exploitation) and diversification (exploration) with building block theory.