What does mudstone become after metamorphism?
This process is called metamorphism. All rocks can be metamorphosed, and there are many different types of metamorphic rock. Limestone can change into marble, shale and mudstones into slate, and igneous rocks like granite can turn into gneiss.
What is the result of regional metamorphism?
Thus, regional metamorphism usually results in forming metamorphic rocks that are strongly foliated, such as slates, schists, and gniesses. The differential stress usually results from tectonic forces that produce compressional stresses in the rocks, such as when two continental masses collide.
Which processes result in the formation of regional metamorphic rocks?
Metamorphic rocks form when heat and pressure transform an existing rock into a new rock. Contact metamorphism occurs when hot magma transforms rock that it contacts. Regional metamorphism transforms large areas of existing rocks under the tremendous heat and pressure created by tectonic forces.
What does regional metamorphism create?
Regional metamorphism usually produces gneiss and schist-like foliated rocks.
What changes mudstone slate?
Slate is usually formed from mudstone that has been put under pressure and heated up during plate collisions and mountain building. Pressure causes the platy clay minerals to line up parallel to each other and so the rock splits easily into sheets.
What does dolerite become after metamorphism?
Most of the dolerite intrusives are metamorphosed into amphibolite or mctadolerite in various degrees. The metamorphic grade attains generally up to the amphibolite facies, and partly to the hornblende granulite facies in the ultramafic tectonites.
What is the most important factor influencing regional metamorphism?
Introduction. Regional metamorphic rocks form from other rocks (protoliths) by changes in mineralogy and texture in response to changing physical conditions (temperature, lithostatic pressure, and, in most cases, shear stress).
What is the main factor that affect regional metamorphism?
What is the main factor that affects regional metamorphism? Answer: Temperature, hydrostatic pressure, and shearing stress, together with the chemical activity of percolating pore fluids, are the major physical variables governing the process of regional metamorphism.
What will happen if a mudstone undergoes metamorphism under wet conditions at temperatures above 700?
Moving progressively toward the interior of the zone of collision, you would encounter greenschist, amphibolite, and granulite facies. What would happen to a mudstone if it were metamorphosed at temperatures in excess of 700 oC under wet conditions? The mudstone probably would melt.
Which of these processes results in a chemical change in rocks?
Chemical weathering changes the molecular structure of rocks and soil. For instance, carbon dioxide from the air or soil sometimes combines with water in a process called carbonation. This produces a weak acid, called carbonic acid, that can dissolve rock. Carbonic acid is especially effective at dissolving limestone.
What happens to slate during metamorphism?
What would slate become if it was metamorphosed more? –Its crystals of mica would grow larger and it would become the rock schist. – It would grow crystals of calcite and become the rock marble.