White Jurassic
The White Jurassic or White Jura (German: Weißer Jura or Weißjura) in earth history refers to the upper of the three lithostratigraphic units of the South German Jurassic, the latter being understood not as a geographical, but a geological term in the sense of a lithostratigraphic super group.
Formerly and even occasionally today in the popular scientific literature, this term is equated to the chronostratigraphic series of the Upper Jurassic.
In addition, the term Malm, which was formerly frequently used as a synonym should no longer be used in connexion with the South German Jurassic.
Instead the term "Malm" should be reserved for the roughly equivalent lithostratigraphic unit in the North German Jurassic.
Locally the White Jurassic is overlain with a large stratigraphic hiatus of the Regensburg Green Sandstone (Cenomanian).
Abbreviations:
- Humph.-Fm = Humphriesioolith Formation
- L.Bk-Fm = Liegende Bankkalk Formation
- H.Bk-Fm = Hangende Bankkalk Formation
- Zm-Fm = Zementmergel Formation
- S.-Fm = Solnhofen Formation
- Rö.-Fm = Rögling Formation
- U.-Fm = Usseltal Formation
- Mö.-Fm = Mörnsheim Formation
- N.-Fm = Neuburg Formation
- R.-Fm = Rennertshofen Formation