What is absolute and relative age dating
As the word relative tells that defining the object with respect to the other object, it will be pertinent to mention here that actual numerical dates of the rocks or sites are not known in this type of dating.
Other than rocks, fossils are the other most important elements in the relative dating as many organisms have there remain in the sedimentary rocks.
Relative Dating and Absolute Dating are two types of such techniques which are under practice to determine the age of the fossils, objects or civilizations.
The relative dating is the technique in the Geology through which the age is determined with relation to the other objects.
In radiometric dating, the radioactive minerals within the rocks are used to know about the age of the object or the sites.
The study of geologic time is encompassed within the larger subject of historical geology.
The latter, the study of Earth's physical history, is one of the two principal branches of geology, the other being physical geology, or the study of Earth's physical components and the forces that have shaped them.
The background of historical geology is discussed in some detail within the Historical Geology essay.
For example, the reference to 1809 as Lincoln's birth year is based on the system of time measurement developed in the West, which, in turn, is based on early ideas regarding the date of Christ's birth.
This evaluation of the rocks and fossils in the relative dating is known as the biostratigraphy.
The absolute dating is the technique to ascertain the exact numerical age of the artifacts, rocks or even sites, with using the methods like carbon dating and other.
The absolute dating is more reliable than the relative dating, which merely puts the different events in the time order and explains one using the other.
The radiometric dating is another crucial technique through which the exact age can be obtained.These techniques are more complex and advanced regarding technology as compared to the techniques in practice in the relative dating.