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Geological mapping of the Ac10 Rongo Quadrangle of Ceres

Platz, T. and Nathues, A. and Sizemore, H. and Crown, D. A. and Hoffmann, M. and Schäfer, M. and Schmedemann, N. and Kneissl, T. and Neesemann, A. and Mest, S. C. and Buczkowski, D.L. and Ruesch, O. and Hughson, K. and Naß, Andrea and Williams, D.A. and Preusker, Frank (2017) Geological mapping of the Ac10 Rongo Quadrangle of Ceres. Icarus. Elsevier. DOI: 10.1016/j.icarus.2017.08.001 ISSN 0019-1035

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Abstract

The Dawn spacecraft arrived at dwarf planet Ceres in spring 2015 and imaged its surface from four successively lower polar orbits at ground sampling dimensions between approx. 1.3 km/px and approx. 35 m/px. To understand the geological history of Ceres a mapping campaign was initiated to produce a set of 15 quadranglebased geological maps using the highest resolution Framing Camera imagery. Here we present the geological map of the Ac10 Rongo Quadrangle, which is located at the equator encompassing the region from 22°N to 22°S and 288° to 360°E. The total relief within the quadrangle is 11.1 km with altitudes ranging from about 7.3 km´(lower 0) to 3.8 km (above 0). We identified nine geological units based on surface morphology and surface textural characteristics. The dominant and most widespread unit is the cratered terrain (crt) representing ancient reworked crustal material. Its consistent formation age across the quadrangle is 1.8 Ga. Two edifices (unit th), Ahuna Mons and an unnamed tholus within Begbalel Crater, are interpreted to be of (cryo)volcanic origin. The southwest portion of the quadrangle is dominated by ejecta material (Ye) emplaced during the formation of the 260 km diameter Yalode impact basin at about 580 Ma. Rayed crater ejecta material (cr) is dominant in the eastern part of the quadrangle but also occurs in isolated patches up to a distance of 455 km from the 34 km diameter source crater Haulani. The remaining five geological units also represent impact crater materials: degraded rim (crdeg), bright crater (cb), hummocky floor (cfh), talus (ta), and crater (c) materials. Widespread Yalode and Haulani ejecta materials can potentially be utilised as stratigraphic markers. Therefore, it is essential to consistently map their full areal extent and to date their formations using impact crater statistics.

Item URL in elib:https://elib.dlr.de/115142/
Document Type:Article
Additional Information:Bisher nur online erschienen.
Title:Geological mapping of the Ac10 Rongo Quadrangle of Ceres
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Platz, T.max-planck institute for solar system research, 37077 göttingen, germanyUNSPECIFIED
Nathues, A.max-planck-institut für sonnensystemforschung, justus-von-liebig-weg 3, 37077 göttingen, germanyUNSPECIFIED
Sizemore, H.planetary science institute, tucson, az, united states.UNSPECIFIED
Crown, D. A.planetary science institute, tucson, az., usaUNSPECIFIED
Hoffmann, M.max-planck-institut für sonnensystemforschung, justus-von-liebig-weg 3, 37077 göttingen, germanyUNSPECIFIED
Schäfer, M.max-planck-institut für sonnensystemforschung, justus-von-liebig-weg 3, 37077 göttingen, germanyUNSPECIFIED
Schmedemann, N.freie universitaet berlin, inst. of geosciences, planetology and remote sensing, malteserstr. 74, 12249 berlin, germanyUNSPECIFIED
Kneissl, T.freie universität berlin, inst. of geosciences, planetology and remote sensingUNSPECIFIED
Neesemann, A.fu berlinUNSPECIFIED
Mest, S. C.planetary science institute, tucson, az, united statesUNSPECIFIED
Buczkowski, D.L.johns hopkins university applied physics laboratory laurel, usaUNSPECIFIED
Ruesch, O.nasa goddard space flight centerUNSPECIFIED
Hughson, K.university of california los angelesUNSPECIFIED
Naß, AndreaAndrea.Nass (at) dlr.dehttps://orcid.org/0000-0001-7172-5170
Williams, D.A.department of geology, arizona state university, tempe, az, usaUNSPECIFIED
Preusker, Frankfrank.preusker (at) dlr.deUNSPECIFIED
Date:2017
Journal or Publication Title:Icarus
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1016/j.icarus.2017.08.001
Publisher:Elsevier
ISSN:0019-1035
Status:Published
Keywords:Impact processes, Asteroid Ceres, Asteroid surfaces, Cratering, Image processing, Volcanism
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Projekt DAWN
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Geology
Institute of Planetary Research > Planetary Geodesy
Deposited By: Naß, Dr. Andrea
Deposited On:09 Nov 2017 09:57
Last Modified:06 Sep 2019 15:26

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