But since the necessary conditions for the formation of ripple-mark occur most abundantly in shallow water, its frequent appearance in a series of Strata may often be taken as evidence, so far, for the shallow-water origin of the beds.
"Geology"
James Geikie
It is evident that the beds s must have been formed before the Strata b were deposited above them.
"Geology"
James Geikie
And from this very contrast between the old and the new, this sense of visible time-Strata in the structure of a city, there results a very real effect of age.
"America To-day, Observations and Reflections"
William Archer