International Field Workshop on 'The Triassic of eastern France'

Stop 2.9 - Mangonville (old gypsum quarry): Middle Keuper (‘Formation salifère’)
Figure 29: Detailed view of the Mangonville
quarry (Fig. 28).
In this old gypsum quarry can be studied
the sebkha deposits of the ‘Formation
salifère’ with red, green and black clay
layers. Gypsum appears as nodular masses,
of various size and more or less
coalescent, and as secondary veins
crossing several strata (Fig. 29).
Day 3 — Thursday, 05.10.2006
Stop 3.1 - Saint-Hubert (old quarries and road cut): Upper Keuper (‘Grès rhétiens’
Fm)
This locality allows to study two particular facies of the ‘Grès rhétien’ Formation.
Figure 30: Location of the outcrop of Saint-Hubert
59