The Provenances of Asteroids, and Their Contributions to the Volatile Inventories of the Terrestrial Planets

By C. Alexander, R. Bowden, M. Fogel, K. Howard, C. Herd, L. Nittler. Science, 2012

634 citations recorded by the source corpus.

Subfields: Astronomy and Astrophysics, Ecology

View Paper: https://www.semanticscholar.org/paper/d74981b000c84fd590afbc76b09ba3596f6f54c6

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Citations in the corpus

Astrophysics with Extraterrestrial Materials (2016, background): “Within chondrites, the D/H values for the hydrated silicates are similar to or lower than that found in Earth’s oceans (1.5 × 10−4) (Alexander et al. 2012).”
Astrochemistry and compositions of planetary systems (2020, background): “D/H ratio for water are from Alexander et al. (2012). (Comet:) Image of Comet ISON by Waldemar Skorupa.”
The Non-carbonaceous–Carbonaceous Meteorite Dichotomy (2020, background): “These objects are the most likely source of Earth’s water and highly volatiles species (Alexander et al. 2012; Marty 2012).”
A hydrogen-based oxidation mechanism relevant to planetary formation (2013, background): “If their calculations are correct, then carbonaceous chondrites could not be the source of terrestrial volatiles, as is argued by many researchers (Albarède, 2009; Alexander et al., 2012; Saal et al., 2013; Tartèse and Anand, 2013).”
The Effect of Jupiter's Formation on the Distribution of Refractory Elements and Inclusions in Meteorites (2017, background): “Indeed, evidence that CIs do not represent a pristine composition comes from measurements of D/H ratios, which show that the water accreted by CI chondrites more closely resembles water in the inner solar nebula rather than comets or other outer solar nebula objects (Alexander et al. 2012, 2017).”
The origin of water in the primitive Moon as revealed by the lunar highlands samples (2014, background): “The black dashed line represents the approximate δD for CI – chondrites (Alexander et al., 2012), and the grey box indicates the range in estimates for the δD of the Earth’s mantle (Lécuyer et al.”
Origin of water in the inner Solar System: Planetesimals scattered inward during Jupiter and Saturn's rapid gas accretion (2017, background): “Carbonaceous chondrites – particular CI chondrites – appear to represent the best match to Earth’s water and nitrogen (Alexander et al., 2012).”
The Compositional Structure of the Asteroid Belt (2015, background): “In fact, the addition of ~2 wt.% of CI or ~4 wt.% of CM chondrite material can roughly reproduce not only the H and N isotopes, but also the abundances of many of the Earth’s most volatile elements (H, C, Cl, Br, I, Ne, Ar and Kr) (Alexander et al., 2012; Marty, 2012).”
Modal mineralogy of CI and CI-like chondrites by X-ray diffraction (2015, background): “As a potential source of Earth’s volatiles (Alexander et al., 2012), understanding the eﬀects of secondary processing on the mineralogy of the CI chondrites has signiﬁcant implications for constraining the nature and transport of water in the early Solar System.”
Evidence for multiple magma ocean outgassing and atmospheric loss episodes from mantle noble gases (2013, background): “8; Halliday, 2013; Hirschmann and Dasgupta, 2009; Marty, 1995), which is surprising considering the Earth’s chondritic-like C, H, and N isotopic ratios (e.g., Alexander et al., 2012; Marty, 2012).”
Heterogeneous distribution of H2O in the Martian interior: Implications for the abundance of H2O in depleted and enriched mantle sources (2016, background): “…sourced from the interiors of these bodies, was delivered to the inner solar system very early, at the time of formation and primary differentiation of the planets and asteroids from a common source similar in composition to the carbonaceous chondrites (Alexander et al. 2012; Sarafian et al. 2014).”