English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Post-impact cryo-hydrologic formation of small mounds and hills in Ceres’s Occator crater

Schmidt, B. E., Sizemore, H. G., Hughson, K. H. G., Duarte, K. D., Romero, V. N., Scully, J. E. C., et al. (2020). Post-impact cryo-hydrologic formation of small mounds and hills in Ceres’s Occator crater. Nature Geoscience, 13(9), 605-610. doi:10.1038/s41561-020-0581-6.

Item is

Basic

show hide
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Schmidt, B. E., Author
Sizemore, H. G., Author
Hughson, K. H. G., Author
Duarte, K. D., Author
Romero, V. N., Author
Scully, J. E. C., Author
Schenk, P. M., Author
Buczkowski, D. L., Author
Williams, D. A., Author
Nathues, Andreas1, Author              
Udell, K., Author
Castillo-Rogez, J. C., Author
Raymond, C. A., Author
Russell, C. T., Author
Affiliations:
1Department Planets and Comets, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832288              

Content

show
hide
Free keywords: -
 Abstract: 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 been hypothesized to form geologic terrains on Ceres, including within Occator crater, where they have been suggested to influence the post-impact surface evolution. Both types of processes involve the presence and expression of volatiles and brines, such that distinguishing between them could be difficult. Here, we use images and topography data from the NASA Dawn mission to investigate the morphology, age and distribution of mounds and hills within Occator crater, and infer their origin. The shapes and relative ages of many of these features suggest that they formed as impact-induced water-rich flows that covered the crater floor refroze in a manner similar to the formation of periglacial ice-cored mounds on Earth called pingos. We suggest that impacts on Ceres produced hydrologic conditions for surface changes in the absence of cryovolcanic processes. Our findings imply that cryo-hydrologic processes extend beyond Earth and Mars, and have been active on Ceres in the geologically recent past.

Details

show
hide
Language(s): eng - English
 Dates: 2020
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1038/s41561-020-0581-6
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Nature Geoscience
  Abbreviation : Nat. Geosci.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: London : Nature Publishing Group
Pages: - Volume / Issue: 13 (9) Sequence Number: - Start / End Page: 605 - 610 Identifier: ISSN: 1752-0894
CoNE: https://pure.mpg.de/cone/journals/resource/1752-0894