Which of the following rocks is transformed into marble?

Q. Which of the following rocks is transformed into marble?

1. Granite
2. Limestone
3. Peat
4. Shale

Answer: Limestone

Marble is a rock resulting from the transformation of limestone. Under very high pressure and temperature limestone transformed into marble which makes the marble a metamorphic rock formed from limestone.

Marble is a metamorphic rock that gets transformed from limestone. In geology, the term marble refers to metamorphosed limestone.

Metamorphic rock is a type of rock that has been changed by extreme heat and pressure.
Examples of metamorphic rock:

• Marble is a metamorphic rock formed from limestone.
• Slate is a metamorphic mudstone or shale.
• Quartzite is a metamorphic sandstone.

Marble is a rock resulting from metamorphism of sedimentary carbonate rocks, most commonly limestone or dolomite rock. Metamorphism causes variable recrystallization of the original carbonate mineral grains. The resulting marble rock is typically composed of an interlocking mosaic of carbonate crystals.