The information on this page is a summary description.
The full formal description is available here: Sleen Formation
| Abbreviation | |
| Parent unit | Altena Group |
| Child units | |
| Lithological description | Open marine, grey, locally sandy or silty claystones. The appearance of red claystones and dolomitic mudstones marks the contact with the underlying Keuper Formation. Top: passing concordantly into Aalburg Formation; base: disconformably overlying Keuper Formation. |
| Age | Uppermost Triassic, Rhaetian, dated by Legrand ( 1961 and in Delmer, 1963) and by M. Roche (personal communication) on the basis of macrofossils and palynomorphs. |
| Thickness | ca. 30 m. |
| Area of occurrence | Roer Valley Graben ; removed by erosion from Campine Basin and eastern Brabant Massif. |
| Type locality | Parastratotypes in Belgium: well KB99 Neeroeteren, well KB 198 Molenbeersel. |
| Alternative names | |
| Authors | Dusar, M., Langenaeker, V. & Wouters, L. |
| Date | 01/01/2001 |
| Cite as | Dusar, M., Langenaeker, V. & Wouters, L., 2001. The Sleen Formation, 01/01/2001. National Commission for Stratigraphy Belgium. http://ncs.naturalsciences.be/lithostratigraphy/Sleen-Formation |
