User:Just granpa/Earth Layers


 * http://www.tulane.edu/~sanelson/eens212/igrockclassif.htm
 * http://www.seafriends.org.nz/enviro/soil/rocktbl.htm
 * intheplaygroundofgiants
 * http://intheplaygroundofgiants.com/wp-content/uploads/2013/07/Table-2.1.2.jpg
 * http://pages.geo.wvu.edu/~lang/Geol284/Min9IgMafic.pdf
 * Earth polar radius = 6,357 km
 * Equatorial maximum = 6,378 km
 * Average = 6371
 * Bowen's reaction series
 * The continental crust has an average composition that approximates granodiorite
 * Brittle–ductile transition zone
 * Template:Metamorphic facies to click
 * https://www.thoughtco.com/metamorphic-facies-1440842
 * Mineral assemblages and metamorphic zones