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10.1038/ncomms11684 http://scihub22266oqcxt.onion/10.1038/ncomms11684 C4895054!4895054!27244672     free     free     free       Nat+Commun 2016 ; 7 (ä): ä Nephropedia Template TP {{tp|p=27244672|t=2016. An asteroidal origin for water in the Moon |pdf=|usr=}}{{27244672}} gab.com Text An asteroidal origin for water in the Moon JO: Nat Commun http://www.kidney.de/pget.php?&tw=1&pmid=27244672 #FOAvip The Apollo-derived tenet of an anhydrous Moon has been contested following measurement of water in several lunar samples that require water to be present in the lunar interior. However, significant uncertainties exist regarding the flux, sources and timing of water delivery to the Moon. Here we address those fundamental issues by constraining the mass of water accreted to the Moon and modelling the relative proportions of asteroidal and cometary sources for water that are consistent with measured isotopic compositions of lunar samples. We determine that a combination of carbonaceous chondrite-type materials were responsible for the majority of water (and nitrogen) delivered to the Earth?Moon system. Crucially, we conclude that comets containing water enriched in deuterium contributed significantly <20% of the water in the Moon. Therefore, our work places important constraints on the types of objects impacting the Moon ?4.5?4.3 billion years ago and on the origin of water in the inner Solar System. Twit Text FOAVip An asteroidal origin for water in the Moon ????Nat Commun http://www.kidney.de/pget.php?&tw=1&pmid=27244672 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=27244672 #FOAvip English Wikipedia <ref>{{Cite pmid|27244672}}</ref> An asteroidal origin for water in the Moon #MMPMID27244672 Barnes JJ; Kring DA; Tartèse R; Franchi IA; Anand M; Russell SS Nat Commun 2016[]; 7 (ä): ä PMID27244672show ga The Apollo-derived tenet of an anhydrous Moon has been contested following measurement of water in several lunar samples that require water to be present in the lunar interior. However, significant uncertainties exist regarding the flux, sources and timing of water delivery to the Moon. Here we address those fundamental issues by constraining the mass of water accreted to the Moon and modelling the relative proportions of asteroidal and cometary sources for water that are consistent with measured isotopic compositions of lunar samples. We determine that a combination of carbonaceous chondrite-type materials were responsible for the majority of water (and nitrogen) delivered to the Earth?Moon system. Crucially, we conclude that comets containing water enriched in deuterium contributed significantly <20% of the water in the Moon. Therefore, our work places important constraints on the types of objects impacting the Moon ?4.5?4.3 billion years ago and on the origin of water in the inner Solar System. äAn asteroidal origin for water in the Moon (epmc).pdf DeepDyve Pubget Overpricing