Biostratigraphy type relative dating technique
Changes in the abundance or species composition of fossil assemblages within a biostratigraphic zone are useful in refining correlations.
Figure 2 shows how variations in the relative proportion of individual species within assemblages can be used to characterize correlatable fossil “populations.” Ratios or percentages of in situ vs.
Other than rocks, fossils are the other most important elements in relative dating as many organisms have there remain in the sedimentary rocks.In other words, we can say that in relative dating the archaeologist determines that which of the two fossil or the artifacts are older.Contrary to this, absolute dating is the technique, using which the exact age of the artifacts, fossils, or sites are ascertained.Relative dating is a less advanced technique as compared to absolute dating.
In relative dating, mostly the common sense principles are applied, and it is told that which artifact or object is older than the other one.
Many are too environmentally sensitive, however, to be good regional markers.