Earth and Mars – Distinct inner solar system products

  title={Earth and Mars – Distinct inner solar system products},
  author={Takashi Yoshizaki and William F. McDonough},
  journal={arXiv: Earth and Planetary Astrophysics},
Accretion disk's magnetic field controlled the composition of the terrestrial planets
Chondrites, the building blocks of the terrestrial planets, have mass and atomic proportions of oxygen, iron, magnesium, and silicon totaling $\geq$90\% and variable Mg/Si ($\sim$25\%), Fe/Si (factor
The smallest space miners: principles of space biomining
As we aim to expand human presence in space, we need to find viable approaches to achieve independence from terrestrial resources. Space biomining of the Moon, Mars and asteroids has been indicated
Terrestrial planet compositions controlled by accretion disk magnetic field
Terrestrial planets (Mercury, Venus, Earth, and Mars) are differentiated into three layers: a metallic core, a silicate shell (mantle and crust), and a volatile envelope of gases, ices, and, for the
Variable refractory lithophile element compositions of planetary building blocks


Ratios of S, Se and Te in the silicate Earth require a volatile-rich late veneer
The excess of highly siderophile (iron-loving) elements (HSEs) and the chondritic ratios of most HSEs in the bulk silicate Earth (BSE) may reflect the accretion of a chondritic ‘late veneer’ of about
Oxford Research Encyclopedia of Planetary Science
  • 2020
Solar Elemental Abundances
  • K. Lodders
  • Physics
    Oxford Research Encyclopedia of Planetary Science
  • 2020
Solar elemental abundances, or solar system elemental abundances, refer to the complement of chemical elements in the entire Solar System. The Sun contains more than 99% of the mass in the solar
Halogens in chondritic meteorites and terrestrial accretion
It is demonstrated that the halogen depletion of bulk silicate Earth relative to primitive meteorites is consistent with the depletion of lithophile elements of similar volatility, and the hydropilic nature of halogens, whereby they track with water, supports this requirement, and is consistency with volatile-rich or water-rich late-stage terrestrial accretion.
Selenium isotopes as tracers of a late volatile contribution to Earth from the outer Solar System
It is suggested that a late and highly concentrated delivery of volatiles enabled Earth to become habitable, according to analysis of the selenium isotopic composition of terrestrial mantle rocks.
The rheology and thermal history of Mars revealed by the orbital evolution of Phobos
Predicting the long-term evolution of the main envelopes of Mars and exploiting the relationship between Mars and Phobos within an established in situ scenario for the early origin of the moons of Mars find that Mars was moderately hotter than it is today, and its mantle sluggishly deforms in the dislocation creep regime.
Volatile element signatures in the mantles of Earth, Moon, and Mars: Core formation fingerprints from Bi, Cd, In, and Sn
Volatile element concentrations in planets are controlled by many factors such as precursor material composition, core formation, differentiation, magma ocean and magmatic degassing, and late
Geodynamics (3rd Edition)
  • 2014