Enlil and the 'Erosion' of the World (the flood-decree)
In the Atrahasis and the Gilgamesh flood-story, Enlil (the king of the gods) decrees the flood because humanity's noise/disturbance is too great. The 'erosion' of the world (the flood) is Enlil's decree to destroy humanity [S2]S2 · Epic of Gilgamesh (Standard Babylonian version)c. 1200 BCEtextOpen source ↗[S3]S3 · AtrahasisOld Babylonian c. 17th c. BCEtextOpen source ↗. Enki (Ea) saves the flood-hero against Enlil's will [S2]S2 · Epic of Gilgamesh (Standard Babylonian version)c. 1200 BCEtextOpen source ↗[S3]S3 · AtrahasisOld Babylonian c. 17th c. BCEtextOpen source ↗.
Sumerian, Akkadian, Babylonian, and Assyrian traditions are one layered, continuous religious world. Sumerian names survive inside Akkadian texts; the succession of 'supreme' gods (An → Enlil → Marduk) is presented as political history, not mythic replacement.
The 'erosion' (the flood) is a 'destruction' myth: the world is 'eroded' by the flood [S2]S2 · Epic of Gilgamesh (Standard Babylonian version)c. 1200 BCEtextOpen source ↗[S3]S3 · AtrahasisOld Babylonian c. 17th c. BCEtextOpen source ↗.