A century ago the valleys of the Southwest were green; now they are brown and cut by gullies. Man is blamed for the change, but he has only added a factor to the geologic cycle that causes it ...
Cyclicity in Earth sciences, quo vadis? Essay on cycle concepts in geological thinking and their historical influence on stratigraphic practices. History of Geo- and Space Sciences, Vol. 13, Issue. 1, ...
The water cycle is a classic lesson taught in schools nationwide, and now an updated model of the cycle made by BYU professors will be implemented in schools across the country. The big factor the ...