Christopher was there at the beginning of my single days — living with Simone and me in the big blue house, his friendly Bernese Mountain Dog a constant cuddly presence in our lives.
And when he moved out to California, he was roommates with my sister Karen for years. He and I were the first to arrive at the mansion, hitting a fat-flaked snowstorm as we drove over the pass and down into the city.
Uniformitarian geologists began using the principles of stratigraphy to assign dates to the layers of the geological column fossils back in the late 1700s.
The concept is considered by uniformitarian geologists to be a major breakthrough in scientific reasoning by establishing a rational basis for relative time measurements.
However, unlike tree-ring dating -- in which each ring is a measure of 1 year's growth -- no precise rate of deposition can be determined for most of the rock layers.
Relative dating is a dating method that used to determine determine the relative ages of geologic strata, artifacts, historical events, etc.
This technique does not give specific ages to items.
Between the years of 17, James Hutton and William Smith advanced the concept of relative dating.
Hutton, a Scottish geologist, first proposed formally the fundamental principle used to classify rocks according to their relative ages.After the uplift of the land, the forces of erosion attacked the highlands and the eroded rock debris was transported and redeposited in the lowlands.During the same interval of time in another part of the world, the land surface subsided and was covered by the seas.The aspens were at peak-autumn, entire hillsides aflame with deep gold and brassy vermillion.Near-whiteout conditions gave way to soap-flake flurries as we ambled up the long driveway to the massive brick and wood home.Wide rings are produced during wet years and narrow rings during dry seasons.