GEOL 1003 Chapter : Geology Chapter 10
Document Summary
A moist temperate forest with deeply rooted plants will expedite weathering rates. No elements or matters enter or leave the system. Instead, they cycle inside the system. (cid:149) once in the earth system, a particular element may exist in many different forms (or compounds). But they are conservative in their total mass. (cid:149) elements / matters exist in different reservoirs, and exchange between reservoirs! example: water. = a body of chemical entity that occupies a particular space. In lithosphere (rock): limestone (caco3 ), coal, petroleum. In atmosphere: co2 , ch4 (cid:149) elements exchange between reservoirs! Chemical flux (cid:149) the exchanges rate between different reservoirs is called flux (= rate at which chemicals flow from one reservoir to another) (cid:149) (cid:149) If flux in=flux out, the reservoir is stable, no change in volume. If flux in (cid:3405) flux out, reservoirs change: some reservoirs will expand, while others contract or shrink.
