Dictionary of Earth Sciences
HORIZON noun
Horizon describes a horizontal layer, or stratum, either in the soil or in rocks. Horizon is also the point in the distance at which the land seems to meet the sky.
The fossils were all found at one particular horizon within the rocks.
Excerpted from the Mini Illustrated Science Dictionaries series, purchased at the Botanic Gardens on the 16th October 2010 for €1.50. A very happy purchase.
J.D. Foley
