Limestone Marble Rock Cycle

Video of geologic materials cycle through various forms.

Limestone marble rock cycle.

Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism. Marble is formed from limestone when the limestone is affected by heat and high pressure during a process known as metamorphism. 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. Sedimentary rocks like bituminous coal limestone and sandstone given enough heat and pressure can turn into nonfoliated metamorphic rocks like anthracite coal marble and quartzite.

Sediments composed of weathered rock lithify to form sedimentary rock which then becomes metamorphic rock under the pressure of earth s crust. During metamorphism the calcite limestone recrystallizes forming the interlocking calcite crystals that make up the marble. Marble is a metamorphic rock formed when limestone is subjected to high pressure or heat. Sedimentary rocks form layers at the bottoms of oceans and lakes.

Ores are rocks that include minerals that have important elements such as metals like gold and silver. Layers of sedimentary rocks are called strata. When tectonic forces thrust sedimentary and metamorphic rocks into the hot mantle they may melt and be ejected as magma which cools to form igneous or magmatic rock. Igneous for example basalt and granite sedimentary for example limestone sandstone and shale.

Limestone is a carbonate sedimentary rock that is often composed of the skeletal fragments of marine organisms such as coral foraminifera and molluscs its major materials are the minerals calcite and aragonite which are different crystal forms of calcium carbonate caco 3 a closely related rock is dolomite which contains a high percentage of the mineral dolomite camg co 3 2. Nonfoliated rocks can also form by metamorphism which happens when magma comes in contact with the surrounding rock.