Petrography Earth Science 1 Earth rotation etc 1 Earthquakes 1 Geomagnetism 1 Glaciations 1 Hot spots 1 Island Arcs 1 Lithology 1 Magmatic Rock bodies 1 Magmatic systems 1 Mantle chemistry 1 Metamorphic bodies 1 Metamorphism 1 Mid ocean ridges 1 Mineralogy 1 Petrology 1 Rationale 1 Ridges 1 Rock creep 1 Rock magnetization 1 Rocks 1 Seismic exploration 1 Subduction zones 1 Terrestrial heat 1