Complex sentence: Growth strata, also known as syntectonic strata, are sedimentary layers that are deposited when folding is taking place and are characterized by decreasing thickness of strata towards crest of an anticline (fig 1).
Split into simpler sentences: Growth strata, also known as syntectonic strata, are sedimentary layers that are deposited when folding is. These layers are characterized by decreasing thickness of strata towards crest of an anticline (fig 1).