Allonne is situated in the Oise, Picardy region , in the north of France at 3 km from Beauvais, the department capital. Allonne is 64 km North from Paris. The brickyards of Allonne once played an important role in the reconstruction of the Early and Middle Paleolithic of Northern France.
The top of the Older Loess (older than MIS5) under warm interglacial conditions, formed the argile rouge, or where redeposited the limon rouge fendille, an important marker of the last interglacial in Loess stratigraphies of the Seine Valley and Northern France in general.
At the old brickyard of Allonne characteristic “Micoquian” bifaces (Figure 3) were found within the limon rouge fendille (MIS5 or late MIS6) with some cordiformes, subcordiformes, twisted bifaces, and unifacial convergent tools as the one shown in this post (Figure 1&2).
Such discoveries ceased in the 1950s, with the closing of the Allonne brickyards, which unfortunately could not be re-studied with up to date archaeological and stratigraphical methods.
The tools of Allonne have a characteristic patina: patine blanc-bleutée. Most artifacts were produced by a hard hammer technique, but some bifaces, especially the Micoquian ones,show traces of a skilled soft hammer production. The Levallois technique is virtually absent. The artifact bearing stratum had a thickness of 40 cm maximum. Bordes and Fitte assumed that the lithic industry was in situ and was homogeneous.
Fig 4 and 5 show a historical pictures of the old brickyards at Allonne:
Similar artifacts from the classic publication (Figure 4): Bordes François et Fitte Paul, « Contributions à l’étude des limons et de leurs industries primitives. La briqueterie d’Allonne (Oise) », Bulletin de la Société préhistorique française, tome 46, n°1-2, 1949, p. 52-62.