Why There is Land on Earth
Why is Earth not just water? Where does land come from, and why does it exist? Find out more about earth s origins with Hank in this new episode of SciShow! SciShow has a spinoff podcast! It s called SciShow Tangents. Check it out at http://www.scishowtangents.org ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Kevin Bealer, Jacob, Katie Marie Magnone, D.A. Noe, Charles Southerland, Eric Jensen, Christopher R Boucher, Alex Hackman, Matt Curls, Adam Brainard, Jeffrey McKishen, Scott Satovsky Jr, James Knight, Sam Buck, Chris Peters, Kevin Carpentier, Patrick D. Ashmore, Piya Shedden, Sam Lutfi, Charles George, Christoph Schwanke, Greg ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://www.iris.edu/hq/inclass/animation/hotspot_volcanism_thermal_plume https://www.caltech.edu/about/news/caltech-question-week-what-would-be-effect-if-all-plate-tectonics-movement-stopped-forever-188 http://www.cotf.edu/ete/modules/volcanoes/vtectonics1.html https://news.uchicago.edu/story/case-earths-missing-continental-crust-solved-it-sank https://www.nature.com/articles/ngeo2806 https://www.sciencedirect.com/science/article/abs/pii/S0012825217300934 https://www.livescience.com/43220-subduction-zone-definition.html https://blogs.ei.columbia.edu/2016/02/22/how-does-continental-crust-form-scientists-have-a-new-bottom-up-theory/ https://www.giss.nasa.gov/research/features/201508_slushball/ https://www.researchgate.net/publication/242223025_Vaalbara_and_Tectonic_Effects_of_a_Mega_Impact_in_the_Early_Archean_3470_Ma/link/00463532e6e89396a0000000/download https://www.researchgate.net/publication/11194024_An_Archean_Impact_Layer_from_the_Pilbara_and_Kaapvaal_Cratons https://www.sciencedirect.com/science/article/abs/pii/S1342937X0570993X https://io9.gizmodo.com/a-history-of-supercontinents-on-planet-earth-5744636 https://www.researchgate.net/publication/258622641_Eoarchean_TTGs_derived_from_thickened_mafic_arc_crust https://www.livescience.com/31272-continents-oozed.html https://www.nationalgeographic.org/encyclopedia/Continent/ https://scienceline.ucsb.edu/getkey.php?key=3657 https://www.eurekalert.org/pub_releases/2015-11/ggph-hsp111115.php https://oceanservice.noaa.gov/facts/why_oceans.html https://pdfs.semanticscholar.org/88ae/c242c5f1ea5db6cee6fb00569fa8bfaa8652.pdf https://www.britannica.com/science/ocean/Origin-of-the-ocean-waters http://people.earth.yale.edu/sites/default/files/korenaga18b.pdf http://scienceline.ucsb.edu/getkey.php?key=6272 https://www.britannica.com/place/Earth/Effects-of-planetesimal-impacts https://www.britannica.com/place/Earth/Accretion-of-the-early-Earth https://www.britannica.com/science/ocean https://ase.tufts.edu/cosmos/view_chapter.asp?id=2&page=4 Image Sources: https://www.istockphoto.com/photo/sunset-over-the-winding-road-with-cypresses-in-tuscany-gm498131251-42042294 https://www.istockphoto.com/photo/granite-rock-wall-gm1132052923-299952309 https://commons.wikimedia.org/wiki/File:Ancient_Pillow_lavas_-_geograph.org.uk_-_1156212.jpg https://www.istockphoto.com/photo/the-surface-of-the-lava-background-gm648646470-117767685 https://www.istockphoto.com/photo/top-view-of-islet-of-vila-franca-do-campo-is-formed-by-the-crater-of-an-old-gm1137955278-303623679 https://commons.wikimedia.org/wiki/File:Graphitic_BIF_(meta-BIF)_(Eoarchean,_3.8_Ga;_Isua_Supracrustal_Belt,_southwestern_Greenland)_(15056531391).jpg https://www.istockphoto.com/photo/cholatse-dramatic-mountain-peak-towering-over-glacial-lake-khumbu-himalayas-gm594464820-101932305 https://www.istockphoto.com/photo/delicate-arch-in-arches-national-park-utah-gm464702046-58687330 https://www.istockphoto.com/photo/red-lava-texture-background-gm1146367799-308874124 https://www.istockphoto.com/photo/ground-movement-shown-in-rock-gm172745162-5943307 https://commons.wikimedia.org/wiki/File:Barringer_Crater_aerial_photo_by_USGS.jpg https://www.istockphoto.com/photo/aeial-view-of-cliff-next-to-beach-gm1203701383-346052559 https://www.istockphoto.com/vector/world-map-with-countries-vector-gm1141678193-305955583 https://commons.wikimedia.org/wiki/File:Olympus_Mons_alt.jpg https://www.istockphoto.com/photo/lava-lake-at-halemaumau-gm1006629870-271670029 https://www.istockphoto.com/photo/stromboli-island-gm482400328-70011169 https://www.istockphoto.com/photo/hexagonal-rock-formation-and-sea-at-the-giants-causeway-gm97530498-6894878?clarity=false
