The information on this page is a summary description.
The full formal description is available here: Aalburg Formation
| Abbreviation | |
| Parent unit | Altena Group |
| Child units | |
| Lithological description | Open marine, grey to dark grey, locally sandy or silty mudstones and marls. Macrofossils (ammonites, molluscs), often pyritised, and siderite nodules can be common. Top: erosive, cut by Mid Cimmerian unconformity and covered by Upper Cretaceous deposits; base: passing inconspicuously into Steen Formation. |
| Age | Lower Jurassic, Hettangian (identified in well KB99) to Pliensbachian (identified in well KB198). |
| Thickness | ca. 450 m preserved thickness in Molenbeersel (becoming thicker and more complete towards the northwest on Dutch territory). |
| Area of occurrence | Roer Valley Graben ; removed by erosion from Campine Basin and eastern Brabant Massif . Aalburg and Sleen Formations follow Pangaea break-up and deposi tion in the North Sea – North German Shale basin during the Rhaetian to Hettangian transgression (Ziegler, 1990). |
| Type locality | Parastratotypes in Belgium: well KB99 Neeroeteren , well KB198 Molenbeersel. |
| Alternative names | |
| Authors | Dusar, M., Langenaeker, V. & Wouters, L. |
| Date | 01/01/2001 |
| Cite as | Dusar, M., Langenaeker, V. & Wouters, L., 2001. The Aalburg Formation, 01/01/2001. National Commission for Stratigraphy Belgium. http://ncs.naturalsciences.be/lithostratigraphy/Aalburg-Formation |
