Learn More. A Veteranâs spouse, dependent, or survivor may be eligible for VA health care benefits through programs such as the Civilian Health and Medical Program, Spina Bifida, Children of Women Vietnam Veterans, Foreign Medical Program, and Caregivers.
Examples of geological phenomena are: 1  Mineralogic phenomena. 2  Lithologic phenomena Rock types Igneous rock Igneous formation processes. 3  Endogenic phenomena Plate tectonics Continental drift.  Exogenic phenomena Slope phenomena 1  Slump. Coupled endogenic-exogenic phenomena Orogeny.
This process can be further subdivided into two categories: physical/mechanical weathering and chemical weathering. Chemical weathering refers to the processes by which rocks react with the atmosphere to form new substances. These reactions can alter a rock and transform the rock into sand, clays, and other minerals.CHEMICAL WEATHERING. Like mechanical weathering, there are several different types of chemical weathering.One type is oxidation, the reaction of oxygen with iron-bearing minerals in rock. In an oxidation reaction, the iron atom loses electrons and precipitates as another mineral.his process can be further subdivided into two categories: physical/mechanical weathering and chemical weathering. Chemical weathering refers to the processes by which rocks react with the atmosphere to form new substances. These reactions can alter a rock and transform the rock into sand, clays, and other minerals.