Re-entrants of Zechstein Z2 salt in the Mid North Sea High

The study of recently-acquired seismic data in the Southern Basin of the British North Sea has led to identification of some interesting re-entrant channels of Zechstein Z2 (Stassfurt) salt rock projecting northwards from the Southern Salt Basin into the Mid North Sea High (MNSH) area. The lithostratigraphic relationships of the various Zechstein units in these re-entrants and on the adjacent shelf areas, together with their morphology, are discussed, and there is speculation as to the reasons for the occurrence of MNSH low areas which are not related to faulting.