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A chemical model for generating the sources of mare basalts: Combined equilibrium and fractional crystallization of the lunar magmasphere
Abstract It is generally considered that mare basalts were generated by the melting of a cumulate mantle formed in an early Moon-wide magma ocean or magmasphere. However, the nature and chemistry ofExpand
Constraints on Martian differentiation processes from RbSr and SmNd isotopic analyses of the basaltic shergottite QUE 94201
Isotopic analyses of mineral, leachate, and whole rock fractions from the Martian shergottite meteorite QUE 94201 yield RbSr and SmNd crystallization ages of 327 ± 12 and 327 ± 19 Ma, respectively.Expand
Vesta as the howardite, eucrite and diogenite parent body: Implications for the size of a core and for large‐scale differentiation
— If Vesta is the parent body of the howardite, eucrite, and diogenite (HED) meteorites, then geo-chemical and petrologic constraints for the meteorites may be used in conjunction with astronomicalExpand
Oxygen Isotopes and the Moon-Forming Giant Impact
The three oxygen isotopes (Δ17O), 16O,17O, and 18O provide no evidence that isotopic heterogeneity on the Moon was created by lunar impacts, and are consistent with the Giant Impact model. Expand
Character and Spatial Distribution of OH/H2O on the Surface of the Moon Seen by M3 on Chandrayaan-1
Analysis of recent infrared mapping by Chandrayaan-1 and Deep Impact, and reexamining Cassini data obtained during its early flyby of the Moon, Pieters et al. reveal a noticeable absorption signal for H2O and OH across much of the surface, implying that solar wind is depositing and/or somehow forming water and OH in minerals near the lunar surface, and that this trapped water is dynamic. Expand
Pre-4.2 AE mare-basalt volcanism in the lunar highlands
The concept that the plutonism of the lunar highlands and the mare-type volcanism are two separate problems in both time (> 4.4 AE versus < 3.95 AE) and space is seriously questioned by the discoveryExpand
Space weathering on airless bodies: Resolving a mystery with lunar samples
— Using new techniques to examine the products of space weathering of lunar soils, we demonstrate that nanophase reduced iron (npFe0) is produced on the surface of grains by a combination of vaporExpand
Hydrogen isotope ratios in lunar rocks indicate delivery of cometary water to the Moon
Water has been found in many lunar rock samples, but its sources are unknown. Isotopic analyses of Apollo samples of lunar mare basalts and highlands rocks suggest that a significant volume of waterExpand
Understanding the Lunar Surface and Space-Moon Interactions
The surface of the Moon is a critical boundary that shapes our understanding of the Moon as a whole. All geologic mapping and remote sensing techniques utilize only the outermost portion of the Moon.Expand
Sources and physical processes responsible for OH/H2O in the lunar soil as revealed by the Moon Mineralogy Mapper (M3)
[1] Analysis of two absorption features near 3 μm in the lunar reflectance spectrum, observed by the orbiting M3 spectrometer and interpreted as being due to OH and H2O, is presented, and the resultsExpand