Laura‐Jane C. Fyfe, John R. Underhill

A REGIONAL GEOLOGICAL OVERVIEW OF THE UPPER PERMIAN ZECHSTEIN SUPERGROUP (Z1 TO Z3) IN THE SW MARGIN OF THE SOUTHERN NORTH SEA AND ONSHORE EASTERN ENGLAND

  • Earth and Planetary Sciences (miscellaneous)
  • Geology
  • Energy Engineering and Power Technology
  • Fuel Technology
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The Upper Permian Zechstein Supergroup has the potential to play an important role in the UK's future energy production and energy transition. However the Supergroup is comparatively poorly understood in the UK, particularly the link between the onshore and offshore geology. In this paper we re‐evaluate available data in order to present a consistent regional interpretation of the Z1 to Z3 Zechstein Supergroup cycles. This review is based on an interpretation and re‐evaluation of 620 offshore wells located in the UK portion of the SW Southern North Sea and 83 onshore wells located in Yorkshire and Lincolnshire (eastern England). The Zechstein Supergroup was interpreted in each well, and the data was used to compile seven SW‐NE oriented correlation panels which show the development of the Supergroup in the study region. Five isopach maps for key formations in the Zechstein Supergroup were created, together with depositional environment maps for each of the main Zechstein carbonate formations. In combination, these regional‐scale maps and diagrams have resulted in a consistent interpretation of the Zechstein Supergroup over an area which extends from the onshore outcrop in the west to the UKCS boundary in the Southern North Sea in the east.

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