Limits on the contribution of early endogenous radiolysis to oxidation in carbonaceous chondrites’ parent bodies

Formation of Sulfates on Parent Bodies of Carbonaceous Chondrites, Ceres,

Introduction: Chemical compounds of S 6+ , sulfates and/or SO3, occur on Earth, Venus, Mars, parent bodies of carbonaceous chondrites, and icy surfaces of Europa and Ganymede. On the terrestrial planets, formation of S 6+ species is related to atmospheric photochemical processes that produce O2 and other O-rich oxidants. Here we explain the formation of sulfates within chondritic bodies through...

Aqueous Oxidation of Parent Bodies of Carbonaceous Chondrites and Galilean Satellites Driven by Hydrogen

Figure 1. Stability fields of sulfate and bisulfide at a total pressure of 100 bar. The thin solid curves represent equal activities of SO4 and HS at various pH. The QFM curve represents equilibrium (2) and HM stands for hematitemagnetite buffer. Sulfate is stable at higher temperature and lower ƒH2. Low-temperature formation of sulfate in asteroidal environments requires complete oxidation of ...

Early Alteration of Matrices in Parent Bodies of Ci/cm Carbonaceous Chondrites: Kinetic-thermodynamic Modeling

Thermodynamic constraints on fayalite formation on parent bodies of chondrites

available online at http://meteoritics.org Thermodynamic constraints on fayalite formation on parent bodies of chondrites Mikhail Yu. ZOLOTOV1*, Mikhail V. MIRONENKO2, and Everett L. SHOCK1, 3 1School of Earth and Space Exploration, Arizona State University, Tempe, Arizona 85287–1404, USA 2Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, Kosygin Street ...

contribution of setting to the study of characters and the main idea in e. brontes: wuthering heights and t. hardys: return of the native.

this thesis aims to adduce an unmitigated and comprehensive explication concerning the relationship of three significant elements of fiction: setting, chracter and theme. my research is basically placed on two outstanding novels of the 19th century: emily brontes wuthering heights and thomas hardys return of the native. my endeavour lies in studying the correlation among the three above-mention...