Formation Marble Metamorphic Rocks

The original rock is subjected to heat temperatures greater than 150 to 200 c and pressure 100 megapascals 1 000 bar or more causing profound physical or chemical change the protolith may be a sedimentary igneous or existing metamorphic rock.

Formation marble metamorphic rocks.

Marble is a metamorphic rock formed when limestone is subjected to high pressure or heat. Marble is a metamorphic rock produced from limestone in the earth crust. Parks with examples of metamorphic rocks include. Metamorphic rocks arise from the transformation of existing rock types in a process called metamorphism which means change in form.

It is composed primarily of the mineral calcite caco 3 and usually contains other minerals such as clay minerals micas quartz pyrite iron oxides and graphite under the conditions of metamorphism the calcite in the limestone recrystallizes to form a rock that is. The rocks in the earth s crust continuously undergo changes in their composition which leads to formation of other rocks. Layers of sedimentary rocks are called strata. Rocks beneath earth s surface are forced toward the mantle.

These conditions often stretch twist and fold the rock as it cools. During the formation of metamorphic rocks what most likely causes pressure to increase. Although metamorphic rocks typically form deep in the planet s crust they are often exposed on the surface of the earth. Geology composition of the earth rocks minerals plate tectonics erosion fossils glaciers.

Metamorphic rocks started out as some other type of rock but have been substantially changed from their original igneous sedimentary or earlier metamorphic form metamorphic rocks form when rocks are subjected to high heat high pressure hot mineral rich fluids or more commonly some combination of these factors. Each rock has a unique formation process. As per wikipedia metamorphic rocks arise from the transformation of existing rock types in a process called metamorphism which means change in form the original rock protolith is subjected to heat temperatures greater than 150 to 200 c and pressure 1500 bars causing profound physical and or chemical change. Rocks melt deep beneath earth s surface.

Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism. It is formed by the metamorphism of limestone. Limestone a sedimentary rock will change into the metamorphic rock marble if the right conditions are met. Types of metamorphic rocks include gneiss quartzite marble schist soapstone and phyllite.

Slate is another common metamorphic rock that forms from shale. Formation of marble is explained below. In its pure form marble is a white stone with a crystalline and sugary appearance consisting of calcium carbonate caco 3 usually marble contains other minerals including quartz graphite pyrite and iron oxides these minerals can give marble a pink brown gray green or variegated coloration. In metamorphic rocks some or all of the minerals in the original rock are replaced atom by atom to form new minerals.