Complex sentence: The Lower Greensand is composed of alternating mudstones and sandstones, ranging up to a maximum thickness of about, and is composed of a number of distinct formations, namely the Folkestone Beds, Sandgate Beds, Bargate Beds, Hythe Beds and Atherfield Clay.
Split into simpler sentences: The Lower Greensand is composed of alternating mudstones and sandstones, ranging up to a maximum thickness of about. It consists of a number of distinct formations, namely the Folkestone Beds, Sandgate Beds, Bargate Beds, Hythe Beds and Atherfield Clay.