Limestone formation
by Mack Snider
1. Animal dies
1.1. Calcium begins extracting from animal through skeleton
1.1.1. Skeletal debris and waste products are used in the formation of limestone
1.1.1.1. limestone is formed (biologically formed)
2. Calcium in fresh water
2.1. Calcium carbonate forms Limestone
2.1.1. Limestone is formed (chemically formed)