Who is NOT interested in structural geology?
Katja teaches her dog how to interprete slicken side striations.
(Apuane Alps, Carrara, Italy, August 1997)

Picture was taken along the road to Campo Cecina, north of the city of Carrara. Grey rocks below are marbles from the low grade Apuane metamorphic core complex. Browhish rocks above are breccia ("breccie poligenetiche") lying on the metamorphic core and below the overlying very low grade Tuscan Nappe. The question is whether the breccia are of tectonic origin or of sedimentological origin. In the latter case, the metamorphic rocks from the core must have been exhumed and eroded prior to deposition of the breccia and consequently prior to the overthrusting of the Tuscan Nappe.


10 February 2000