The information on this page is a summary description.
The full formal description is available here: Nouvelles Chalk Formation
| Abbreviation | NOU |
| Parent unit | Chalk group |
| Child units | |
| Lithological description | A pure, massive, soft, very fine-grained white chalk, without flints, except for two to three bands of small flint nodules at the top. There is a gradual transition to the underlying Obourg Fm. At the southern margin of the basin, a prominent hardground may be present in the uppermost part of this formation. |
| Age | Transition between the early and the late Late Campanian; cephalopods: Belemnitella minor I, Bt. woodi, Trachyscaphites spiniger; brachiopods: Magas chitoniformis (= M. pumilus auct.); echinoids: Micraster schroederi, Echinocorys gibba; foraminifers: first Bolivinoides australis (4 – 5 pustules); the majority of fossil taxas already found in the underlying Obourg Fm. |
| Thickness | 20 to 25 m at the margin of the Mons basin, but about 75 m at Beaulieu in a subsidence area of this basin. |
| Area of occurrence | Mons Basin, in outcrops along the margins and in boreholes. |
| Type locality | No stratotype has been designated for the Nouvelles Formation. The Formation outcrops in quarries, especially at Harmignies (section in the C.C.C. quarry studied in Robaszynski & Christensen, 1989). |
| Alternative names | |
| Authors | Robaszynski, F., Dhondt, A.V. & Jagt, J.W.M. |
| Date | 01/01/2001 |
| Cite as | Robaszynski, F., Dhondt, A.V. & Jagt, J.W.M., 2001. The Nouvelles Chalk Formation, 01/01/2001. National Commission for Stratigraphy Belgium. https://ncs.naturalsciences.be/lithostratigraphy/Nouvelles-Chalk-Formation |
| Additional information | References: see Spiennes Fm. |
