Author/Authors :
James R. and Peplowski، نويسنده , , Patrick N. and Blewett، نويسنده , , David T. and Denevi، نويسنده , , Brett W. and Evans، نويسنده , , Larry G. and Lawrence، نويسنده , , David J. and Nittler، نويسنده , , Larry R. and Rhodes، نويسنده , , Edgar A. and Selby، نويسنده , , Christina M. and Solomon، نويسنده , , Sean C.، نويسنده ,
Abstract :
To illustrate the spatial resolution of measurements of Mercuryʹs surface elemental composition by the Gamma-Ray Spectrometer on the MESSENGER spacecraft after one year of orbital observations, we have simulated a global coverage map of the 846-keV iron gamma-ray count rate. The simulated map suggests that distinct geologic units larger than 800 km in horizontal dimension will be discernable when the difference in Fe abundance between adjacent geologic units exceeds 4 wt%. These results imply that the MESSENGER Gamma-Ray Spectrometer dataset will provide useful information for regional geological studies of the surface of Mercury.
Keywords :
messenger , mercury , Gamma-ray spectrometry , Iron
