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.
Â· just now. Report Abuse. Metamorphic rocks are rocks that have undergone metamorphism, or change in form.. What this means is that a pre-existing rock type, the protolith, is exposed to heat greater than 150 C. The protolith can be igneous or sedimentary rock, or just some older metamorhpic rock.eport Abuse. Metamorphic rock is the result of the transformation of a pre-existing rock type, the protolith, in a process called metamorphism, which means change in form.