Inversion is turning the sole of the foot or ankle medially, and eversion is turning it laterally.
Metamorphic rock. Metamorphic rocks arise from the transformation of existing rock types, in a process called metamorphism, which means change in form. The original rock is subjected to heat and pressure, causing profound physical and/or chemical change.The protolith may be sedimentary rock, igneous rock or another older metamorphic rock.he original rock is subjected to heat and pressure, causing profound physical and/or chemical change. The protolith may be sedimentary rock, igneous rock or another older metamorphic rock.
Metamorphic Rocks. Metamorphic rocks are other rocks (igneous and sedimentary) that have undergone high amount of pressure and temperature deep within the Earth. Metamorphism is the result of solidification of material under high temperature and pressure. There are two types of metamorphism, contact and regional.