Deposition of locally up to about six km of marine and non-marine sedimentary rocks took place from the Neoproterozoic to the late Paleozoic (ca. 850-340 Ma).
A significant accumulation of sedimentary rocks happened in a localized area, extending up to about six kilometers, comprising both marine and terrestrial deposits, spanning the Neoproterozoic to late Paleozoic periods, roughly 850-340 million years ago.