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.
1 Metamorphic rocks are the third type of rock. 2  Meta = change; morph = shape or form. 3  Metamorphic rock is produced when sedimentary, igneous and other metamorphic rocks are subjected to sufficient pressure and heat to change their crystal structure and size. Metamorphic rocks are the third type of rock. 2  Meta = change; morph = shape or form. 3  Metamorphic rock is produced when sedimentary, igneous and other metamorphic rocks are subjected to sufficient pressure and heat to change their crystal structure and size.