Sedimentary cycles have their reservoir pool in deep sediments or the earth’s crust or rocks. Nutrient elements that are found in the sediments of the Earth are Sulphur, phosphorus, potassium, and calcium. There is an absence of a gaseous phase in this cycle.
This cycle is very slow. A longer time is taken to complete their circulation and is considered as less perfect cycles. Since, In the process of recycling, nutrient elements get locked in the reservoir pool, which thereby takes a long time to come out and continue circulation. Thus, it always goes out of circulation for an extended time.