The use of the CIA as a proxy for paleo-humidity

The use of the CIA as a proxy for paleo-humidity has some limitations. Consider the effect of the following processes on the CIA and how it would alter the signal.

◦ Chemical changes that occur to sediment during burial (diagenesis)

◦ Sediment recycling in a sediment basin (i.e., uplift of existing sedimentary rocks and their erosion creating new sediments).