the Earth's crust. Major biogeochemical cycles include the carbon cycle, the nitrogen cycle and the water cycle. In each cycle, the chemical element or...

The phosphorus cycle is the biogeochemical cycle that involves the movement of phosphorus through the lithosphere, hydrosphere, and biosphere. Unlike...

Marine biogeochemical cycles Marine biogeochemical cycles are biogeochemical cycles that occur within marine environments, that is, in the saltwater of...

The carbon cycle is that part of the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere...

The water cycle, also known as the hydrologic cycle or the hydrological cycle, is a biogeochemical cycle that involves the continuous movement of water...

The nitrogen cycle is the biogeochemical cycle by which nitrogen is converted into multiple chemical forms as it circulates among atmospheric, terrestrial...

The iron cycle (Fe) is the biogeochemical cycle of iron through the atmosphere, hydrosphere, biosphere and lithosphere. While Fe is highly abundant in...

Global biogeochemical cycles are critical to life, most notably those of water, oxygen, carbon, nitrogen and phosphorus. The nitrogen cycle is the transformation...

oxygen cycle demonstrates how free oxygen is made available in each of these regions, as well as how it is used. The oxygen cycle is the biogeochemical cycle...

applies the study of biogeochemical cycles to the geologic history of the Earth. This field investigates the origin of biogeochemical cycles and how they have...