Marble Where Did The Heat And Pressure Come From

Marble comes from limestone that has been changed by heat and pressure.

Marble where did the heat and pressure come from.

It s like putting blankets on yourself the more you layers you put on or the more blankets you put on the more pressure you recieve because of all the weight of the layers on top of you. Marble is formed under extreme heat when thinking about the various geological processes that result in the formation of natural stone such as granite and marble you cannot forget about volcanic and igneous activity. Marble is a metamorphic rock formed when limestone is subjected to high pressure or heat. Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism.

The heat inside earth is so intense that it moves continents builds mountains and causes earthquakes. The minerals reacted to the pressure differently than the stone did forming veins and patterns. The resulting rock has a crystalline nature enabling it to take a polish janet writes in remodeling 101. Metamorphism causes variable recrystallization of the original carbonate mineral grains.

When the heat and pressure hits the limestone calcite seed crystals form. In its pure form marble is a white stone with a crystalline and sugary appearance consisting of calcium carbonate caco 3. Because marble is a fairly soft material only a three on the mohs hardness scale it is easy to cut and carve. Where does all this heat come from.

Marble is found in the oldest layers of earth s crust. The pressure comes from many layers of rock piling on top of eachother and the heat comes from magma. The beautiful and unique patterns in natural marble are a major reason for its value. Ages ago the skeletons and shells of countless billions of tiny sea creatures.

These are formed by deposits of minerals which existed in the limestone before it was affected by extreme heat and pressure in the earth s crust. Marble is a rock resulting from metamorphism of sedimentary carbonate rocks most commonly limestone or dolomite rock. Marble forms over millions of years when under lots of heat and pressure limestone changes physically and chemically into something harder and denser in a process known as recrystallization. That is it began as one kind of rock and later changed into another kind.

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. The resulting marble rock is typically composed of an interlocking mosaic of carbonate crystals.