The blood pressure decreases and complaints, such as fatigue and lassitude, make themselves felt. These symptoms may also occur after the meal because the blood gathers in the area of the digestive organs and is missing in the brain. Dizziness.
Non-foliated metamorphic rocks such as hornfels, marble, quartzite, and novaculite do not have a layered or banded appearance. Pictures and brief descriptions of some common types of metamorphic rocks are shown on this page. Hornfels is a fine-grained nonfoliated metamorphic rock with no specific composition.
Metamorphic rocks are formed when heat and pressure below Earth's surface change a rock. Metamorphic rocks can be either foliated or nonfoliated. Foliated rocks are metamorphic rocks that have their grains arranged in parallel layers or bands. Slate is an example of a foliated rock.rganic rocks form when the remains of plant or animals are deposited in thick layers and become cemented together. Coal and limestone are both examples of organic rocks. Chemical rocks are formed when minerals that are dissolved in solution crystallize. Rock salt is an example of a chemical rock.