This deformation can also be seen in contact-metamorphosed pelitic country rocks. Near the WMI, prismatic sillimanite pseudomorphs randomly oriented andalusite crystals . Prismatic sillimanite also occurs as lineated and foliated crystals parallel to the axial plane of the syncline. The MS is more deformed than the WMI, and should be called an augen gneiss . Foliation within the MS trends WNW and dips SW with a shallow SE-plunging stretching lineation.
Kinematic indicators show a combination of right-lateral and thrust motion.
In the country rock, dikes related to the MS are folded and boudinaged . The foliation seen in both of these intrusions is parallel to and seemingly related to foliation in the country rock. Deformation and intrusion were synchronous, at least for these two intrusions, which suggests that they are late synorogenic, not anorogenic.