The delivery of water by impacts from planetary accretion to present.

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Tytuł:: The delivery of water by impacts from planetary accretion to present.
Autorzy:: Daly RT; Department of Earth, Environmental and Planetary Sciences, Brown University, 324 Brook Street, Box 1846, Providence, RI 02912, USA.
Schultz PH; Department of Earth, Environmental and Planetary Sciences, Brown University, 324 Brook Street, Box 1846, Providence, RI 02912, USA.
Źródło:: Science advances [Sci Adv] 2018 Apr 25; Vol. 4 (4), pp. eaar2632. Date of Electronic Publication: 2018 Apr 25 (Print Publication: 2018).
Typ publikacji:: Journal Article; Research Support, U.S. Gov't, Non-P.H.S.
Język:: English
Imprint Name(s):: Original Publication: Washington, DC : American Association for the Advancement of Science, [2015]-
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Entry Date(s):: Date Created: 20180501 Latest Revision: 20191120
Update Code:: 20221216
PubMed Central ID:: PMC5916508
DOI:: 10.1126/sciadv.aar2632
PMID:: 29707636
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Dynamical models and observational evidence indicate that water-rich asteroids and comets deliver water to objects throughout the solar system, but the mechanisms by which this water is captured have been unclear. New experiments reveal that impact melts and breccias capture up to 30% of the water carried by carbonaceous chondrite-like projectiles under impact conditions typical of the main asteroid belt impact and the early phases of planet formation. This impactor-derived water resides in two distinct reservoirs: in impact melts and projectile survivors. Impact melt hosts the bulk of the delivered water. Entrapment of water within impact glasses and melt-bearing breccias is therefore a plausible source of hydration features associated with craters on the Moon and elsewhere in the solar system and likely contributed to the early accretion of water during planet formation.

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