The foundation of relative
dating is it does not have an atmospheric reservoir. The
phosphorus cycle does not include gas phase. Its largest reservoir is located
in sedimentary rocks, and the cycle begins there. Phosphate from rocks are
eliminated and then released into the soil and water. The phosphate ions then
absorbed by plants and transferred to animals or organisms which eat plants. It
is then returned to the soil by way of excretion and decomposed by plants and
animals when they die.
