These layers are presumed to be the result of annual fluctuations in climate, and using this method, uniformitarians purport to document ages of over 100,000 years.Creationists, such as Michael Oard, contend that these laminations are from subannual events, including layering due to dust to be found in a post-flood ice age. Subannual formation is supported by observations that several such layers of snow and ice can result from the storms within a single winter season.
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 principles of relative dating for continuous stratigraphic sequences: (as put forth by scientists such as Nicolas Steno): Ice cores are obtained by drilling core samples of ice in glaciated regions, such as near the poles.
Visible light and dark rings can be found in such cores that are then analyzed to determine the age of the ice.
Using these methods, geologists have created a geologic time scale for organizing past times in earth’s history.
Highland County igneous rock intrudes sedimentary rock (Photograph by Stan Johnson) This light-colored Highland County igneous intrusion cuts through the darker sedimentary rock.
It only sequences the age of things or determines if something is older or younger than other things.
Some types of relative dating techniques include climate chronology, dendrochronology, ice core sampling, stratigraphy, and seriation.
By using dendrochronology scientists have dated certain living trees to having ages of around 4600 years.
This section discusses the methods geologists use to determine how old a fossil or rock is. Therefore, the sedimentary rock must be older than the intrusion.
Relative dating is a dating method that used to determine determine the relative ages of geologic strata, artifacts, historical events, etc.