I thank you so much for your question and hope that you are well.
it is Crystal clear that the all of environmental variables such as geological factors can influence human public health because essentially public health depends on environmental health. we can explain this relationship via multidisciplinary approach.
medical geology deals with the study of kidney and gale stones, teeth stones, bones, and chemical analysis of soil, materials that could be harmful to human being
Medical geology originally referred to a kind of physical determinism in which the geological profile was assumed to correlate with certain diseases. Thus nineteenth century British cancer studies identified areas whose geology (and other factors) seemed to promote cancers in patients. it is a subset of environmental medicine originally promoted by Hippocrates long ago. While we no longer think geology is a determinant disease ecologies in which a broad range of local environmental (and social) elements contribute to states of health and disease has evolved in recent years. Some of this is about the environment in which disease vectors (like specific mosquitoes) are promoted, and more generally about the environments of various vectors. Other elements of the work deal with either climate in a broad sense (thus we have flue seasons) and as importantly socioeconomic and anthropogenic (man made) effects, for instance deforestation.
You might like to look at the chapter on cancers in my Disease Maps: Epidemics on the Ground to see a discussion of the 19th century British work on geology and cancer.
Medical Geology is a new field that combines work done in many traditional disciplines but are tied together under a geology or earth science umbrella. I suggest you check out the International Medical Geology Association, and the two recent MedGeo conference papers (with abstracts).