What geological layers are shown in 'Рисунок 3'?

In 'Рисунок 3', the geological layers, as per the legend, are as follows: the top layer is an 'осадочный слой' (sedimentary layer) with a dashed pattern. Below this is a 'гранитный слой' (granite layer) with dots. The lowest layer is also a 'гранитный слой' (granite layer), again represented by dots.