Lanzarote Geological History: Ancient
In this picture, most of the layers are made up of sand and other
However, you can also see evidence of ancient volanic activity where
material deposited on the surface of the island over millions of years.
the lines become conical. Two distinct lava tunnels are clearly
evident here, a darker one to the right, and what's left of one just to
the left of that. But these are very, very old...
