Formation
Mineral Content
Compound Content
Metamorphism
Types of Metamorphism
Weathering
Types of Weathering
Erosion
Types of Erosion
Jasperoid is a rare and peculiar type of metasomatic alteration of rocks. It is formed by extreme alteration of wall rocks within a shear zone which may occur in sediments, andesites, trachytes and basalts.
Clay Minerals, Pyrite, Quartz, Sulfides
NaCl, CaO, Carbon Dioxide, Magnesium Carbonate, MgO
Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism
Diatomite rock formed from the skeletal remains of single celled plants called diatoms. When diatoms die, their skeletal remains sink to the bottom of lakes and oceans etc. hence forming diatomite deposit.
Calcite, Clay, Clay Minerals, Quartz, Sand
Biological Weathering, Chemical Weathering, Mechanical Weathering
Chemical Erosion, Coastal Erosion, Wind Erosion