Cratonic sequence
（重定向自Supersequence）
A cratonic sequence is a very large-scale lithostratographic sequence that covers a complete marine transgressive-regressive cycle across a craton. They are also known as "megasequences", "stratigraphic sequences", "sloss sequence" "supersequence" or simply "sequences." In plain English, it is the geological evidence of the sea level rising and then falling, thereby depositing layers of sediment onto an area of ancient rock called a craton.