1 Slowness-bradykinesia (slow movement) and akinesia (inability to move) are common in people with Parkinson's disease. 2  This is a hypokinetic disorder characterized by hypokinesia or akinesia, rigidity, and a rhythmic fine tremor at the rate of 3-6 cycles per second. Slowness-bradykinesia (slow movement) and akinesia (inability to move) are common in people with Parkinson's disease. 2  This is a hypokinetic disorder characterized by hypokinesia or akinesia, rigidity, and a rhythmic fine tremor at the rate of 3-6 cycles per second.
The conditions deep in the earth are different enough that these different conditions cause minerals different from those which form at the surface. For example, surface weathering process, which is also a change of the types of minerals causes hard rocks to change into small crumbly pieces.
First, the more water in the system, the faster the weathering. Second, the higher the temperature, the faster the weathering. So, the fastest rates of chemical weathering tend to occur in the hot, humid tropics. Third, the more mineral surface area exposed in the rock by joints, the faster the weathering. The increased number of cracks in the rock will allow the agents of water and oxygen to interact more intensely with the minerals. Finally, the type of minerals in the rock will also dictate rates.