Absolute and relative rock dating
Short Answer: Both relative dating and absolute dating are tools used to give temporal characteristics to a sequence of events.Both are attempting to get information on the history of events.Relative age allows scientists to know whether something is older or younger than something else, while absolute age means that scientists know the exact number in years that have passed since the object was created.Relative age will require the comparison of two or more objects, whereas absolute age does not.Using these methods, the scientist determines a date range for when an event took place rather than where it fits in the overall record. The techniques scientist need for absolute dating did not become available until the later half of the 20th century.Absolute dating uses clues, such as the emperor's face on a coin, to date an artifact.An example of this type of aging includes rocks in Canada that scientists identified as being hundreds of million years old.
I study how bone tissue, growth, and metabolism evolve at macroevolutionary time scales. Tree ring dating offers over 1,000 years of clues in dates of artifacts from the American Southwest.Radiocarbon dating provides additional clues necessary for absolute dating.For example, if an area used for trash has modern refuse in it such as CDs and computers, and the layer underneath has cans made of tin, then it is safe to say the layer of tin cans have a greater relative age than the layer with modern refuse.However, this does not say anything about the absolute age of the layers.