The foliation in metamorphic minerals is always perpendicular to the direction of pressure. E.g. Vertical pressure is applied, the foliation will be horizontal, and vice-versa, the pressure is horizontal you get vertical foliation. From Yahoo answers
In geology, foliation refers to the process of being split into thin sheets. It is related to stress because the stress or pressure determines how the metamorphic minerals will be split.
presence of platy mineral and orientation stress can give foliation to a metamorphic rocks.
Foliation.
Slaty foliation, is a type of parallel foliation consisting of fine-grained platy minerals. The direction of foliation is usually perpendicular to the direction of maximum stress.
Slaty foliation, is a type of parallel foliation consisting of fine-grained platy minerals. The direction of foliation is usually perpendicular to the direction of maximum stress.
Slaty foliation- Parallel foliation of fine-grained platy minerals in a direction perpendicular to the direction of maximum stress (-Anonymous)
It is called foliation.
It is called foliation.
Foliation
Foliation is caused by heat and pressure being applied to the parent rock. The heat and pressure combine to realign the existing minerals from a random orientation to one of parallel orientation, thus creating the visible lines or platy cleavages found in foliated metamorphic rocks. The lines of foliation are created perpendicularly to the force being applied.
foliation
The heat and pressure combine to realign the existing minerals from a random orientation to one of parallel orientation, thus creating the visible lines or platy cleavages found in foliated metamorphic rocks. The lines of foliation are created perpendicularly to the force being applied.