Lies Member SGSKL

 

Premise The member is classified in the Skylge Formation, Scruff Group. The Lies Member comprises the clayey succession of the former Scruff Argillaceous Member and also includes the southern extension of the informal main Kimmeridge Clay Member sensu Van Adrichem Boogaert & Kouwe (1993) in the southern Central Graben, the Terschelling and Vlieland basins. The Kimmeridge Clay Formation (amended) is currently restricted to the northern Central Graben (see above). The lateral sandy facies of the former Scruff Argillaceous is attributed to the Noordvaarder Member. The Scruff Argillaceous Member has been abandoned.
Derivatio nominis Named after the village Lies on the Wadden island Terschelling.
Type section Location map See figure (pdf)
  Well L06-02 (pdf)
  Location N 53°48’53.7
E 04°59’19.97
  Depth 2318 to 2463 m
  Length 145 m along hole
Definition The member consists of bioturbated silty to sandy claystones. Locally, the member comprises glauconitic, pyritic and carbonate streaks. The GR-logs show fining and coarsening upward trends. The top of this member particularly demonstrates a coarsening upward trend in GR-log pattern.
Upper Boundary The upper boundary with the Spiculite Member is marked by a funnel-shaped GR-log pattern, resulting from the upward decreasing clay content. This change is also well shown on the porosity log. The transition coincides with the Sequence 2 / Sequence 3 boundary sensu Abbink et al. (2006).
Lower Boundary The Lies Member diachronously overlies the Terschelling Sandstone Member; the base of the Lies Member is younger in the southern part of the Terschelling Basin, blocks L06 and M04. The lower contact with the Terschelling Sandstone Member is conformable and marked by a downward drop in GR-log readings (bell-shape).
Distribution The Lies Member is deposited in the south-eastern part of the Dutch Central Graben, Terschelling and Vlieland basins (blocks L02, L03, L06, L12, L15, M01 and M04 (see pdf).
Age Sequence 2 sensu Abbink et al. (2006): Early-Middle Volgian, wheatleyensis/ hudlestoni-anguiformis Ammonite zones. The base of the Lies Member is diachronous. In the southern Terschelling Basin the age of the base is younger and associated  with  the  Middle Volgian  J71  MFS  sensu Partington et al. (1993). The top of the Lies Member coincides with the boundary between Sequence 2 and 3 sensu Abbink et al. (2006) in the anguiformis Ammonite Zone. The FODs (First Occurrence Datum) of Kleithriasphaeridium porosispinum and Rotosphaeropsis thula indicate Early Volgian (hudlestoni Ammonite Zone) or a younger age.
Depositional Setting The sediments are considered to be deposited in the offshore- shelf environment.
References See References Upper Jurassic/ Lower Cretaceous

D.K. Munsterman, R.M.C.H. Verreussel, H.F. Mijnlieff, N. Witmans, S. Kerstholt-Boegehold & O.A, Abbink (2012), Revision and update of the Callovian-Ryazanian Stratigraphic Nomenclature in the northern Dutch Offshore, i.e. Central Graben Subgroup and Scruff Group. Netherlands Journal of Geosciences-Geologie en Mijnbouw, 91 (4):555-590.
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