Editing Earth's outer core (section)

{{Short description|Fluid layer composed of mostly iron and nickel between Earth's solid [[inner core]] and its mantle}}
{{Broader|Internal structure of Earth#Core}}
[[File:Earth-crust-cutaway-english.svg|thumb|right|250px|Earth and atmosphere structure]]
'''Earth's outer core''' is a fluid layer about {{convert|2,260|km|mi|abbr=on}} thick, composed of mostly  [[iron]] and [[nickel]] that lies above Earth's solid [[Earth's inner core|inner core]] and below its [[Earth's mantle|mantle]].<ref>{{cite web |date=18 January 2017 |title=Earth's Interior |url=https://www.nationalgeographic.com/science/earth/surface-of-the-earth/earths-interior/ |archive-url=https://web.archive.org/web/20170506193701/http://www.nationalgeographic.com/science/earth/surface-of-the-earth/earths-interior/ |url-status=dead |archive-date=May 6, 2017 |access-date=14 November 2018 |website=Science & Innovation |publisher=National Geographic}}</ref><ref>{{Cite web |last=Sue |first=Caryl |date=2015-08-17 |editor-last=Evers |editor-first=Jeannie |title=Core |url=https://education.nationalgeographic.org/resource/core/ |access-date=2022-02-25 |website=National Geographic Society |language=en}}</ref><ref name=":12">{{Cite journal |last1=Zhang |first1=Youjun |last2=Sekine |first2=Toshimori |last3=He |first3=Hongliang |last4=Yu |first4=Yin |last5=Liu |first5=Fusheng |last6=Zhang |first6=Mingjian |date=2014-07-15 |title=Shock compression of Fe-Ni-Si system to 280 GPa: Implications for the composition of the Earth's outer core |journal=Geophysical Research Letters |volume=41 |issue=13 |pages=4554–4559 |doi=10.1002/2014gl060670 |bibcode=2014GeoRL..41.4554Z |s2cid=128528504 |issn=0094-8276|doi-access=free }}</ref> The outer core begins approximately {{convert|2889|km|mi|abbr=on}} beneath Earth's surface at the [[Core–mantle boundary|core-mantle boundary]] and ends {{convert|5,150|km|mi|abbr=on}} beneath Earth's surface at the inner core boundary.<ref>{{Cite journal |last1=Young |first1=C J |last2=Lay |first2=T |date=1987 |title=The Core-Mantle Boundary |url=https://www.annualreviews.org/doi/10.1146/annurev.ea.15.050187.000325 |journal=Annual Review of Earth and Planetary Sciences |language=en |volume=15 |issue=1 |pages=25–46 |doi=10.1146/annurev.ea.15.050187.000325 |bibcode=1987AREPS..15...25Y |issn=0084-6597|url-access=subscription }}</ref>