|Front view of the tiny fault in silified bentonite. Hammer for scale. :-)|
13 October, 2016
Bentonite has its faults, too.
While writing and compiling the doctoral thesis (two chapters complete, hurrah!) I have been screening through many photographs taken during fieldwork. This one was pretty nice because it shows a tiny fault! The fault is almost vertical, strikes almost North, shows almost no displacement (arrows) - recognisable only by relict sedimentary (too pale to be seen on the picture) layers and the occasional root molds (white dotted lines), amounting to maybe 1 cm of movement. Unfortunately this was the only occasion in 5 years of work that I managed to find a fault in the Bavarian bentonite, and I almost missed this one because I thought that it was related to the on-going mining activities.