Changes

The use of water from the Colorado Springs at the Pikes Peak in the Rocky Mountain region of USA had led to dental fluorosis amongst children. This condition arose as a result of meteoric waters that flowed over faulted granitic batholiths (Finkelman et al, 2010b). The meteoric waters ‘picked up’ fluoride from easily dissolved minerals at the fault and incorporated it into the flow. Fluoride was also injected into the Colorado Springs by fluoride-enriched fractured and faulted Cretaceous Pierre Shale that underlies the spring (Fig. 2, Finkelman et al, 2010b).

The use of water from the Colorado Springs at the Pikes Peak in the Rocky Mountain region of USA had led to dental fluorosis amongst children. This condition arose as a result of meteoric waters that flowed over faulted granitic batholiths (Finkelman et al, 2010b). The meteoric waters ‘picked up’ fluoride from easily dissolved minerals at the fault and incorporated it into the flow. Fluoride was also injected into the Colorado Springs by fluoride-enriched fractured and faulted Cretaceous Pierre Shale that underlies the spring (Fig. 2, Finkelman et al, 2010b).

[[FIG 2]]

[[File:UNN_Medical_Geology_Fig_2.png|thumb|400px|{{figure number|2}}]]

===Biological classification of elements===

===Biological classification of elements===