Characterisng the Paleocene turbidites of the north Sea

The Mey Sandstone Member, Lista Formation, UK Central Graben

Ben Kilhams, Adrian John Hartley, Mads Huuse, Chris Davis

Research output: Contribution to journalArticle

Abstract

This paper presents an integrated seismic, petrophysical and core facies study of the Mey Sandstone Member of the Central North Sea Lista Formation. Seismic mapping and attribute analysis reveal that the Mey Sandstone Member is composed of distinct axial and lateral routing systems. In turn, the axial system can be divided into coeval western and eastern fairways defined by the underlying graben topography in a similar manner to the overlying Sele Formation (Forties) sandstones. These trends are confirmed by petrophysical analysis, which also reveals that the lateral systems are not as important as previously proposed and that the cycles of the Mey Sandstone Member prograded over time before a late stage of backstepping. These variations can be related directly to published sea-level curves. Core analysis reveals that mean grain size is the main control on sandstone quality and that similar proximal (channelized) to distal (sheet-like) changes in sedimentological facies occur to those described in the Sele Formation. It is argued that these deposits cannot be described as simple basin floor fans due to the impact of topography on turbidite flow routing and the existence of multiple entry points of sediment into the basin.

Original languageEnglish
Pages (from-to)337-354
Number of pages18
JournalPetroleum Geoscience
Volume18
Publication statusPublished - Aug 2012

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Sandstone
Paleocene
graben
sandstone
routing
Topography
topography
Core analysis
core analysis
Backstepping
Sea level
turbidite
basin
Fans
Sediments
Deposits
grain size
sea
sea level
sediment

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Characterisng the Paleocene turbidites of the north Sea : The Mey Sandstone Member, Lista Formation, UK Central Graben. / Kilhams, Ben; Hartley, Adrian John; Huuse, Mads; Davis, Chris.

In: Petroleum Geoscience, Vol. 18, 08.2012, p. 337-354.

Research output: Contribution to journalArticle

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