Stages and Lithostratigraphy
Stages can include many lithostratigraphic units (for example formations, beds, members, etc.) of differing rock types that were being laid down in different environments at the same time. In the same way, a lithostratigraphic unit can include a number of stages or parts of them.
Read more about this topic: Stage (stratigraphy)
Famous quotes containing the word stages:
“The four stages of man are infancy, childhood, adolescence and obsolescence.”
—Art Linkletter (20th century)