Eucritic crust remnants and the effect of in-falling hydrous carbonaceous chondrites characterizing the composition of Vesta’s Marcia region
M.C. De Sanctis, J.-P. Combe, A. Ammannito, A. Frigeri, A. Longobardo, E. Palomba, F. Tosi, F. Zambon, K. Stephan, C.A. Raymond, C.T. Russell
In Press, Accepted Manuscript, Available online 21 May 2015
The detailed mineralogical analysis of the Marcia quadrangle indicates that this quadrangle is the result of the mixture of the Vestan “endogenic” minerals with the “exogenic” carbonaceous chondrites. The stratigraphic units around Marcia clearly show the bright, uncontaminated material interlaced and mixed with the dark material that contains a strong OH signature. Only few small areas can be considered as representative of the old Vestan original material.