{"refrec":{"BRefID":338075,"RR":"<b>Schmitz, B.; Farley, K.A.; Goderis, S.; Heck, P.R.; Bergström, S.M.; Boschi, S.; Claeys, P.; Debaille, V.; Dronov, A.; van Ginneken, M.; Harper, D.A.T.; Iqbal, F.; Friberg, J.; Liao, S.; Martin, E.; Meier, M.M.M.; Peucker-Ehrenbrink, B.; Soens, B.; Wieler, R.; Terfelt, F.</b> (2019). An extraterrestrial trigger for the mid-Ordovician ice age: dust from the breakup of the L-chondrite parent body. <i>Science Advances 5(9)</i>: eaax4184. <a href=\"https://hdl.handle.net/10.1126/sciadv.aax4184\" target=\"_blank\">https://hdl.handle.net/10.1126/sciadv.aax4184</a>","BEntID":334699,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Science Advances 5(9)</i>: eaax4184. <a href=\"https://hdl.handle.net/10.1126/sciadv.aax4184\" target=\"_blank\">https://hdl.handle.net/10.1126/sciadv.aax4184</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Schmitz, B.; Farley, K.A.; Goderis, S.; Heck, P.R.; Bergström, S.M.; Boschi, S.; Claeys, P.; Debaille, V.; Dronov, A.; van Ginneken, M.; Harper, D.A.T.; Iqbal, F.; Friberg, J.; Liao, S.; Martin, E.; Meier, M.M.M.; Peucker-Ehrenbrink, B.; Soens, B.; Wieler, R.; Terfelt, F.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Schmitz, B. <i>et al.</i>","Englishabstract":"The breakup of the L-chondrite parent body in the asteroid belt 466 million years (Ma) ago still delivers almost a third of all meteorites falling on Earth. Our new extraterrestrial chromite and <sup>3</sup>He data for Ordovician sediments show that the breakup took place just at the onset of a major, eustatic sea level fall previously attributed to an Ordovician ice age. Shortly after the breakup, the flux to Earth of the most fine-grained, extraterrestrial material increased by three to four orders of magnitude. In the present stratosphere, extraterrestrial dust represents 1% of all the dust and has no climatic significance. Extraordinary amounts of dust in the entire inner solar system during &gt;2 Ma following the L-chondrite breakup cooled Earth and triggered Ordovician icehouse conditions, sea level fall, and major faunal turnovers related to the Great Ordovician Biodiversification Event.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"An extraterrestrial trigger for the mid-Ordovician ice age: dust from the breakup of the L-chondrite parent body","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:01.897972","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2019,"MonPub":null,"DateUpdate":"2021-05-29","DateCreate":"2021-05-17","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000491128800054","VABBcode":null,"OpenAcc":1,"Handle":"10.1126/sciadv.aax4184"},"refs":null,"anarec":{"AnaID":338075,"PubliDate":2019,"Pagination":"eaax4184","XtraPublOfAnaID":null,"ISBN":null,"Volume":"5","Issue":"9","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":248966,"SerRR":"Science Advances. 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