A pop-up structure carried on a back-thrust/fore-thrust couplet. The result is a hanging slice of rock. The image here shows pop-up stacking of the Cretaceous Urgonian limestone (seen in the Bornes gorge, NW French Subalps), which forms cliffs about 200m high (the view is rather foreshortened from the valley bottom). Notice that both thrusts "obey" the rules in that they repeat stratigraphy. Click here for a reminder. You can understand these types of back-thrust/fore-thrust pairs in terms of stresses and conjugate faults.