International Field Workshop on 'The Triassic of eastern France'

Stop 4.3 - Bitche (N62 road): Hardegsen unconformity (between Middle and Upper
Buntsandstein)
In this outcrop (Fig. 44), the ‘Grès vosgien’ Fm is directly overlain by the ‘Couches intermédiaires’
Fm (Fig. 45) which displays several pedogenic horizons ('violet zones') like at the stop 3.7. The Hardegsen
unconformity, with a wide channel-like shape, can be observed between these two formations. A very
different interpretation (Fig. 46) was proposed by Bock et al. (2001).
Figure 44: Location of rhe two outcrops of Bitche
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