Geological Society of America

T166 Ceres' Surface Composition as an Indication of Interior Evolution (Posters)

Monday, 26 September 2016
9:00 AM - 6:30 PM
Exhibit Hall E/F

SPECTRAL INVESTIGATION OF QUADRANGLE AC3 OF THE DWARF PLANET CERES – THE REGION OF IMPACT CRATER DANTU

Paper number: T166-3
Program: Technical Sessions
Time: 9:00 AM – 6:30 PM

Authors

Katrin Stephan Presenting Author
Institute of Planetary Research, Berlin
Lucy A. McFadden
GSFC, Greenbelt, MD
Jean-Philippe Combe
Bear Fight Institute, Winthrop, WA
Federico Tosi
IAPS - Istituto di Astrofisica e Planetologia Spaziali, Rome
Eleonora Ammannito
Goettingen
Maria Cristina De Sanctis
INAF, Instituto di Astrofisica e Planetolgia Spaziali, Rome
Thomas Roatsch
Institute of Planetary Research, Berlin
Frank Preusker
Institute of Planetary Research, Berlin
Andreas Nathues
Goettingen
Carol A. Raymond
California Institute of Technology, Pasadena, CA
Christopher T. Russell
University of California, Los Angeles, Los Angeles, CA
Ralf Jaumann
Institute of Planetary ResearchGerman Aerospace Center (DLR), Berlin
Thomas Kneissl
Freie Universität Berlin, Berlin
Francesca Zambon
IAPS - Istituto di Astrofisica e Planetologia Spaziali, Rome
Fillipo Giacomo Carozzo
IAPS - Istituto di Astrofisica e Planetologia Spaziali, Rome
Katrin Krohn
German Aerospace Center (DLR), Berlin
Jan Kallisch
Goettingen
Andrea Longobardo
INAF - Istituto Nazionale di Astrofisica, Rome
Ernesto Palomba
IAPS - Istituto di Astrofisica e Planetologia Spaziali, Rome

Abstract

The 126 km large impact crater Dantu and its ejecta blankets dominate major part of quadrangle 3 (Ac3) of dwarf planet Ceres, which is located between 21-66 °N and 90-180 °E in a large depression north of the impact basin Kerwan [1]. A detailed analysis of the surface composition of this area is performed based on data acquired by the Framing Camera (FC) and the Visible and Infrared Spectrometer (VIR) of the Dawn spacecraft. Key topics of our spectral investigation are the detailed characterization of the Dantu crater in combination with its complex geology and topography presented in [1] and the influence of this impact event on the spectral properties of the entire region. We discuss the origin of Dantu's spectral properties, which appear to be unique compared to other large impact features on Ceres and its connection to the extended region of neither blue nor red material on Ceres [2]. [1] Kneissl et al. (2016): Geologic mapping of the Ac-H-3 Dantu quadrangle of Ceres from NASA's Dawn mission. 47^th LPSC. Abstract #1967. [2] Stephan et al. (2016 in prep.): The investigation of the spectral nature of the bluish material on Ceres.

Geological Society of America Abstracts with Programs. Vol. 48, No. 7

doi: 10.1130/abs/2016AM-282642

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