Q:

What is a metamorphic rock formed from limestone?

A:

Marble is a metamorphic rock formed from limestone. Changes in the limestone's chemical properties due to external forces can result in the creation of marble.

Metamorphic rocks are produced when the properties of existing rocks are changed through contact with heat or pressure. Marble is formed when the mineral calcite, which is found in limestone, recrystallizes due to exposure to magma or regional metamorphism. Marble is composed primarily of interlocking calcite crystals, mica and quartz. The length of the metamorphic process the limestone undergoes determines the size of the reformed calcite crystals in the newly formed marble. The majority of the sedimentary and fossil content in the limestone is altered or replaced during the metamorphic process.


Is this answer helpful?

Similar Questions

  • Q:

    How is metamorphic rock formed?

    A:

    Metamorphic rock is formed underground through a process that changes a rock's molecular structure due to pressure, heat and chemical reactions. A metamorphic rock forms from a parent rock called a protolith. Depending on conditions, a protolith can transform into any metamorphic rock. Because protoliths are capable of undergoing vast changes, identifying them is sometimes difficult for geologists.

    Full Answer >
    Filed Under:
  • Q:

    How does marble form?

    A:

    Marble is a soft metamorphic rock that forms at the edges of tectonic plates, where limestone is exposed to regional metamorphism. The heat and pressure of the metamorphic zone force calcite inside the limestone to recrystallize and merge into the classic marble consistency.

    Full Answer >
    Filed Under:
  • Q:

    What rock is formed when magma cools at the Earth's surface?

    A:

    The specific type of rock that forms when magma cools at the Earth's surface is extrusive igneous rock. Igneous rock forms when magma cools, but where the magma cools determines the type of igneous rock that forms. Igneous rock gets its name from the Greek word for fire and is so called due to the extremely hot liquid from which the rocks originate.

    Full Answer >
    Filed Under:
  • Q:

    How is hornfels formed?

    A:

    Hornfels is a metamorphic rock formed when any clay-rich rock such as mudstone or shale comes into contact with a hot igneous body. Hornfels is the name given to the heat-altered version of the original rock and may originate from multiple varieties of rocks. The process by which hornfels is formed is called contact metamorphism.

    Full Answer >
    Filed Under:

Explore