EARTH SCIENCE
FOSSILS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
number of years that have passed since the rock formed. It provides the rock with a specific age.
|
|
Sedimentary Age
|
|
Relative Age
|
|
An Intrusion
|
Detailed explanation-1: -Absolute age refers to the specific number of years or age range that have passed since the rock has formed. It is determined based on the radioactive decay of isotopes of certain elements such as carbon-14 and potassium-40.
Detailed explanation-2: -Geologists find absolute ages by measuring the amount of certain radioactive elements in the rock. When rocks are formed, small amounts of radioactive elements usually get included. As time passes, the “parent” radioactive elements change at a regular rate into non-radioactive “daughter” elements.
Detailed explanation-3: -The absolute age of a rock is the number of years since the rock formed.
Detailed explanation-4: -An absolute age dating method is a method of measuring how old a natural material is in years. For example, dendrochronology dating involves counting the number of tree rings to determine how old a tree is.