Hot spots Bio diversity 1 Earth rotation etc 1 Earthquakes 1 Geomagnetism 1 Glaciations 1 India 1 Island Arcs 1 Mantle chemistry 1 Metamorphism 1 Mid ocean ridges 1 Petrography 1 Plant diversity 1 Rationale 1 Ridges 1 Rock creep 1 Rock magnetization 1 Seismic exploration 1 Subduction zones 1 Terrestrial heat 1