Limestone Marble Rock Cycle

Ores are rocks that include minerals that have important elements such as metals like gold and silver.

Limestone marble rock cycle.

Marble is formed from limestone when the limestone is affected by heat and high pressure during a process known as metamorphism. Marble is a metamorphic rock formed when limestone is exposed to high heat and pressure within the earth. Sedimentary rocks form layers at the bottoms of oceans and lakes. 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.

Marble is a metamorphic rock formed when limestone is subjected to high pressure or heat. Sediments composed of weathered rock lithify to form sedimentary rock which then becomes metamorphic rock under the pressure of earth s crust. 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. 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.

Video of geologic materials cycle through various forms. Nonfoliated rocks can also form by metamorphism which happens when magma comes in contact with the surrounding rock. Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism. Remember that there are three main types of rock.

During metamorphism the calcite limestone recrystallizes forming the interlocking calcite crystals that make up the marble. Layers of sedimentary rocks are called strata.