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!
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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
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