@article{f85135d5d693436d8d67fc6ea83b0ae2,
title = "Bright carbonate surfaces on Ceres as remnants of salt-rich water fountains",
abstract = "Vinalia and Cerealia Faculae are bright and salt-rich localized areas in Occator crater on Ceres. The predominance of the near-infrared signature of sodium carbonate on these surfaces suggests their original material was a brine. Here we analyze Dawn Framing Camera's images and characterize the surfaces as composed of a central structure, either a possible depression (Vinalia) or a central dome (Cerealia), and a discontinuous mantling. We consider three materials enabling the ascent and formation of the faculae: ice ascent with sublimation and carbonate particle lofting, pure gas emission entraining carbonate particles, and brine extrusion. We find that a mechanism explaining the entire range of morphologies, topographies, as well as the common composition of the deposits is brine fountaining. This process consists of briny liquid extrusion, followed by flash freezing of carbonate and ice particles, particle fallback, and sublimation. Subsequent increase in briny liquid viscosity leads to doming. Dawn observations did not detect currently active water plumes, indicating the frequency of such extrusions is longer than years.",
author = "O. Ruesch and Quick, {L. C.} and Landis, {M. E.} and Sori, {M. M.} and O. {\v C}adek and P. Bro{\v z} and Otto, {K. A.} and Bland, {M. T.} and S. Byrne and Castillo-Rogez, {J. C.} and H. Hiesinger and R. Jaumann and K. Krohn and McFadden, {L. A.} and A. Nathues and A. Neesemann and F. Preusker and T. Roatsch and Schenk, {P. M.} and Scully, {J. E.C.} and Sykes, {M. V.} and David Williams and Raymond, {C. A.} and Russell, {C. T.}",
note = "Funding Information: Damien Loizeau and an anonymous referee are acknowledged for their throughout review of an earlier version of this manuscript. The Framing Camera system on the spacecraft was developed and built under the leadership of the Max Planck Institute for Solar System Research in G{\"o}ttingen, Germany, in collaboration with the DLR Institute of Planetary Research in Berlin and the Institute of Computer and Communication Network Engineering in Braunschweig. The Framing Camera project is funded by the Max Planck Society, DLR, and NASA/Jet Propulsion Laboratory. The Dawn spacecraft Operations and Flight teams made the observations possible and are acknowledged for their efforts. O.R. is supported by an appointment to the NASA Postdoctoral Program at the NASA Goddard Space Flight Center administered by Universities Space Research Association through a contract with NASA. Dawn Framing Camera data are archived with the NASA Planetary Data System at http://sbn.psi.edu/pds/resource/dwncfc2.html . Funding Information: Damien Loizeau and an anonymous referee are acknowledged for their throughout review of an earlier version of this manuscript. The Framing Camera system on the spacecraft was developed and built under the leadership of the Max Planck Institute for Solar System Research in G?ttingen, Germany, in collaboration with the DLR Institute of Planetary Research in Berlin and the Institute of Computer and Communication Network Engineering in Braunschweig. The Framing Camera project is funded by the Max Planck Society, DLR, and NASA/Jet Propulsion Laboratory. The Dawn spacecraft Operations and Flight teams made the observations possible and are acknowledged for their efforts. O.R. is supported by an appointment to the NASA Postdoctoral Program at the NASA Goddard Space Flight Center administered by Universities Space Research Association through a contract with NASA. Dawn Framing Camera data are archived with the NASA Planetary Data System at http://sbn.psi.edu/pds/resource/dwncfc2.html. Publisher Copyright: {\textcopyright} 2018 Elsevier Inc.",
year = "2019",
month = mar,
day = "1",
doi = "10.1016/j.icarus.2018.01.022",
language = "English (US)",
volume = "320",
pages = "39--48",
journal = "Icarus",
issn = "0019-1035",
publisher = "Academic Press Inc.",
}