Geologic constraints on the origin of red organic-rich material on Ceres
- Pieters, C.
- Nathues, A.
- Thangjam, G.
- Hoffmann, M.
- Platz, T.
- Sanctis, M.
- Ammannito, E.
- Tosi, F.
- Zambon, F.
- Pasckert, J.
- Hiesinger, H.
- Schröder, S.
- Jaumann, R.
- Matz, K.
- Castillo-Rogez, J.
- Ruesch, O.
- McFadden, L.
- O’Brien, D.
- Sykes, M.
- Raymond, C.
- Russell, C.
DOIAbstract
The geologic context of red organic-rich materials (ROR) found across an elongated 200 km region on Ceres is evaluated with spectral information from the multispectral framing camera (FC) and the visible and near-infrared mapping spectrometer (VIR) of Dawn. Discrete areas of ROR materials are found to be associated with small fresh craters less than a few hundred meters in diameter. Regions with the highest concentration of discrete ROR areas exhibit a weaker diffuse background of ROR materials. The observed pattern could be consistent with a field of secondary impacts, but no appropriate primary crater has been found. Both endogenic and exogenic sources are being considered for these distinctive organic materials
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