Volpriehausen Formation RBMV

 

Premise Formation defined by van Adrichem Boogaert & Kouwe (1994). New formation name, derived from the German stratigraphic nomenclature (Volpriehausen-Folge: Boigk (1959) ;Röhling (1991) ). It comprises the Volpriehausen Sandstone and Clay-Siltstone Members, and their basin-fringe equivalents, which were formerly assigned to the now abandoned Middle Bunter Formation of NAM and RGD (1980) .
Derivatio nominis New formation name, derived from the German stratigraphic nomenclature (Volpriehausen-Folge: Boigk (1959) ; R�ng (1991) ). It comprises the Volpriehausen Sandstone and Clay-Siltstone Members, and their basin-fringe equivalents, which were formerly assigned to the now abandoned Middle Bunter Formation of NAM and RGD (1980)
Type section Location map See figure (pdf)
  Well Blijham-1 (pdf)
  Location N 53°05’40.9
E 07°04’40.0
  Depth 2807 to 2898 m
  Length 91 m along hole
Additional section Location map See figure (pdf)
  Well L02-01 (pdf)
  Location N 53°57’14.0
E 04°30’47.0
  Depth 4048 to 4205 m
  Length 157 m along hole
  Well Buurmalsen-1 (pdf)
  Location N 51°54’18.7
E 05°18’49.2
  Depth 1427 to 1576 m
  Length 149 m along hole
  Well Strijen West-1 (pdf)
  Location N 51°44’41.0
E 04°31’14.3
  Depth 2589 to 2728 m
  Length 139 m along hole
Definition The lowermost sequence of sandstones, siltstones and claystones of the Main Buntsandstein Subgroup. The upper half of the formation displays an overall coarsening upwards trend. The formation is composed of a basal, fine-grained, light-coloured sandstone, grading laterally and vertically into red to green clay-siltstones in the basin or fine-grained, cemented sandstones in the basin fringe. The maximum thickness of the formation is 200 m in the lows and controlled to a great extent by intra-Triassic erosion.
Upper Boundary The Volpriehausen Formation comprises the strata between theLower Buntsandstein Formation and the Detfurth Formation. The upper boundary is taken at the base of the Detfurth Formation or, on the swells, at the base of the Solling Formation of the Upper Germanic Trias Group. The upper boundary may be difficult to identify in cases where the uppermost sandy part of the Volpriehausen is directly overlain by either the Detfurth or the Solling Formation..
Lower Boundary .Its lower boundary is taken at the base of the massive basal sandstone, which forms a subtle unconformity (the ‘V’-Unconformity of Trusheim (1961) ; see also Geluk et R�ng (1995) ).
Distribution The formation has a wide distribution and is generally well-preserved on the Netherlands Swell and the Cleaver Bank High below the Base Solling Unconformity.
Age Scythian.
Depositional Setting  
Subdivision  
  The formation has been subdivided in the basinal area as follows:
  RB Lower Germanic Trias Group
  RBM Main Buntsandstein Subgroup
  RBMV Volpriehausen Formation
  RBMVC Volpriehausen Clay-Siltstone Member
  RBMVL Lower Volpriehausen Sandstone Member
  In the basin-fringe area in the southern Netherlands onshore and offshore, the formation has been subdivided into (from top to bottom):
  RBMVU Volpriehausen Clay-Siltstone Member
  RBMVL Lower Volpriehausen Sandstone Member
References See References Triassic

Van Adrichem Boogaert, H.A. & Kouwe, W.F.P., 1993-1997. [Stratigraphic unit]. In: Stratigraphic Nomenclature of the Netherlands.
Retrieved [Datum] from [url].