When we see, as is so often the case, a formation composed of beds of widely different mineralogical composition, we may reasonably suspect that the process of deposition has been more or less interrupted.
Sarri gertatzen den moduan, mineral-osaketa oso ezberdineko geruzaz osaturiko formazio bat ikustean, arrazoiz susma genezake metaketa-prozesua gutxi-asko eten egin dela.