What is absolute carbon dating of fossils
Response: The two major types of dating include relative methods and absolute methods.
Relative methods focus on comparison of fossils, strata, or other artifacts to determine which is older and which is younger.
Paleoanthropologists focus much of their research in East and South Africa, because these areas have the most ideal conditions for fossilization and access to the deep layers containing the fossils.
Inorganic materials, such as iron and silica slowly and steadily replace the organic materials, like calcium and phosphorus, in the organism.
Fossils are found in a variety of rock, but most often in sedimentary rock, which forms from the accumulation of sediments.
The replacement of organic materials with inorganic materials is not always complete, as DNA is sometimes preserved within the fossil.
In addition, local climatic and environmental conditions determine whether fossilization will occur, so that there is differential preservation among different locations.
Moreover, the rock sequences are not always complete in all places, so certain periods cannot be investigated.