Nature vibrates with rhythms, climatic and diastrophic, those finding stratigraphic expression ranging in period from the rapid oscillation of surface waters, recorded in ripple-mark, to those long-deferred stirrings of the deep imprisoned titans which have divided earth history into periods and eras. The flight of time is measured by the weaving of composite rhythms - day and night, calm and storm, summer and winter, birth and death such as these are sensed in the brief life of man. But the career of the earth recedes into a remoteness against which these lesser cycles are as unavailing for the measurement of that abyss of time as would be for human history the beating of an insect's wing. We must seek out, then, the nature of those longer rhythms whose very existence was unknown until man by the light of science sought to understand the earth. The larger of these must be measured in terms of the smaller, and the smaller must be measured in terms of years. Joseph Barrell, 'Rhythm and the Measurement of Geologic Time', Bulletin of Geological Society of America 1917 28:74
Geology may be defined to be that branch of natural history which investigates the successive changes that have taken place in the organic and inorganic kingdoms of nature. It is a science founded on exact observation and careful induction; it may termed the physical history of our globe; it investigates the structure of the planet on which we live and explains the character and causes of the various changes in the organic and inorganic kingdoms of nature. William Humble, Dictionary of Geology and Mineralogy
Geology is as intimately related to almost all the physical sciences, as is history to the moral. ibid.
63 million years ago they vanished virtually overnight … an asteroid nine miles across … forty thousand miles an hour … north of modern day Mexico. The Day the Dinosaurs Died, BBC 2017
The team uncovered a dense layer of fossils right at this boundary line. ibid.
Starting with the biggest tsunami in history. ibid.
It was geology at hyper-speed. ibid.