A Possible Brine Reservoir Beneath Occator Crater: Thermal and Compositional Evolution and Formation of the Cerealia Dome and Vinalia Faculae

@article{Quick2019APB,
  title={A Possible Brine Reservoir Beneath Occator Crater: Thermal and Compositional Evolution and Formation of the Cerealia Dome and Vinalia Faculae},
  author={Lynnae C. Quick and Debra L. Buczkowski and Ottaviano Ruesch and Jennifer E. C. Scully and Julie C. Castillo‐Rogez and Carol A. Raymond and Paul M. Schenk and Hanna G. Sizemore and Mark V. Sykes},
  journal={Icarus},
  year={2019}
}
Abstract The Dawn spacecraft has imaged several putative cryovolcanic features on Ceres, and several lines of evidence point to past cryovolcanic activity at Occator crater. It is therefore possible that cryovolcanism played a key role in delivering sodium carbonate- and chloride-enriched brines to Ceres’ surface in recent geological times. The detection of a 200 km×200 km negative Bouguer anomaly beneath Occator suggests the presence of a low-density region beneath the crater. If this region… Expand
Post-impact cryo-hydrologic formation of small mounds and hills in Ceres’s Occator crater
The intimate mixture of ice and silicate within the uppermost few kilometres of Ceres influences its geology and the evolution of its subsurface. Both ground ice and cryovolcanic processes have beenExpand
The varied sources of faculae-forming brines in Ceres’ Occator crater emplaced via hydrothermal brine effusion
TLDR
It is reported that brine effusion emplaced the faculae in a brine-limited, impact-induced hydrothermal system of Occator crater of the dwarf planet Ceres, and that impact-derived fracturing enabled brines to reach the surface. Expand
Mineralogy of Occator crater on Ceres and insight into its evolution from the properties of carbonates, phyllosilicates, and chlorides
Abstract Occator Crater on dwarf planet Ceres hosts the so-called faculae, several areas with material 5 to 10 times the albedo of the average Ceres surface: Cerealia Facula, the brightest andExpand
Cryovolcanic rates on Ceres revealed by topography
Cryovolcanism, defined here as the extrusion of icy material from depth, may be an important planetary phenomenon in shaping the surfaces of many worlds in the outer Solar System and revealing theirExpand
Impact-driven mobilization of deep crustal brines on dwarf planet Ceres
Ceres, the only dwarf planet in the inner Solar System, appears to be a relict ocean world. Data collected by NASA’s Dawn spacecraft provided evidence that global aqueous alteration within CeresExpand
Ceres’ Occator crater and its faculae explored through geologic mapping
Abstract Occator crater is one of the most recognizable features on Ceres because of its interior bright regions, which are called the Cerealia Facula and Vinalia Faculae. Here we use high-resolutionExpand
Impact heat driven volatile redistribution at Occator crater on Ceres as a comparative planetary process
TLDR
Stereo imaging and topographic maps of Occator crater are shown revealing the influence of crustal composition on impact related melt and hydrothermal processes, and features to those on Mars, Earth and the Moon are compared. Expand
Fresh emplacement of hydrated sodium chloride on Ceres from ascending salty fluids
The surface and internal structure of Ceres show evidence of a global process of aqueous alteration, indicating the existence of an ocean in the past. However, it is not clear whether part of thisExpand
Introduction to the special issue: The formation and evolution of Ceres’ Occator crater
Abstract Ceres, the largest body in the asteroid belt, was explored from orbit for the first time by the Dawn mission. The ∼92 km-diameter Occator crater contains bright regions, or faculae, whichExpand
The In Situ Exploration of a Relict Ocean World: An Assessment of Potential Landing and Sampling Sites for a Future Mission to the Surface of Ceres
The Dawn orbiter’s exploration of Ceres, the most water-rich body in the inner solar system after Earth, revealed the dwarf planet to be a relict ocean world of great interest to the astrobiology andExpand
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Mineralogy of Occator crater on Ceres and insight into its evolution from the properties of carbonates, phyllosilicates, and chlorides
Abstract Occator Crater on dwarf planet Ceres hosts the so-called faculae, several areas with material 5 to 10 times the albedo of the average Ceres surface: Cerealia Facula, the brightest andExpand
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Ceres’ Occator crater and its faculae explored through geologic mapping
Abstract Occator crater is one of the most recognizable features on Ceres because of its interior bright regions, which are called the Cerealia Facula and Vinalia Faculae. Here we use high-resolutionExpand
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