The layers do not show distortion or tilting that is related to mountains, so sea level fall is most likely the cause.

The top layer of the fortress shows that the fortifications were renewed in the Hellenistic period.

The layers appear to be only a few meters thick and show little variations in thickness.

In the parts which deal with smell and taste, lower layers of neurones show only a little specialization between different stimuli.

Her skirts and shawls were so threadbare that several layers showed through in patches.

A light layer of snow showed clumpy tracks leading away.

This layer shows the 7 congressional districts for Colorado and the representative for each.

A layer of dust showed that the padlock had not been touched in weeks.

When the last layers begin to dry, the material cracks and shows its structural components.

Still earlier layers show no trace of any modern species.