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Geological Society, London, Special Publications; 1999; v. 151; p. 109-124;
DOI: 10.1144/GSL.SP.1999.151.01.11
© 1999 Geological Society of London

Remanence acquisition and magnetostratigraphy of the Leman Sandstone Formation: Jupiter Fields, southern North Sea

P. Turner1, P. Chandler2, D. Ellis3, G. P. Leveille4 & M. L. Heywood1

1 School of Earth Sciences, The University of Birmingham, Edgbaston, Birmingham B15 27T, UK
2 Pole Position, 45 Court Farm Avenue, Ewell, Surrey KT19 OHD, UK
3 Mobil North Sea Ltd, Grampian House, Union Row, Aberdeen AB1 1SA, UK
4 Conoco (UK) Ltd, Rubislaw House, North Anderson Drive, Aberdeen AB2 4AZ, UK

The Leman Sandstone Formation, which forms part of the unfossiliferous Rotliegend sediments in the Jupiter Fields, has been cored at various location in the southern North Sea. Samples from the finer-grained sediments have measurable remanences that were classified into four main types. Some of these characteristics can be related to the petrological features that demonstrate that they are likely to have originated during deposition or very early diagenesis. This allows the age of the sediments to be determined using magnetostratigraphy, indicating that the sediments are of post-Kiaman age as they contain both normal and reversed polarities. This magnetostratigraphy can also be used to determine different rates of deposition in different areas.