Formation
Mineral Content
Compound Content
Metamorphism
Types of Metamorphism
Weathering
Types of Weathering
Erosion
Types of Erosion
Anthracite forms from the accumulation of plant debris in a swamp environment. When plant debris dies and falls into the swamp, the standing water of the swamp protects it from decay.
Calcite, Clay, Clay Minerals
Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur
Burial Metamorphism, Contact Metamorphism, Regional Metamorphism
Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Serpentinite is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.
Carbonate, Magnetite, Pyrrhotite, Serpentine, Sulfides
Ca, CaO, Carbon Dioxide, KCl, MgO, Sulfur Dioxide, Sulphur
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Wind Erosion