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Initial Geologic Mapping of the AC-H-8 Nawish Quadrangle of Ceres using DAWN Spacecraft Data

Frigeri, Alessandro and Sanctis, Maria Cristina De and Carrorro, Filippo and Williams, David and Mest, Scott Charles and Buczkowski, Debra and Preusker, Frank and Jaumann, Ralf and Roatsch, Thomas and Scully, Jennifer (2015) Initial Geologic Mapping of the AC-H-8 Nawish Quadrangle of Ceres using DAWN Spacecraft Data. GSA Annual Meeting, 2015-11-01 - 2015-11-04, Baltimore, Maryland, USA.

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Herein we present the geologic mapping of the Ac-H-8 Nawish Quadrangle of Ceres, in order to identify the geologic processes that have modified the surface of dwarf planet Ceres, which NASA’s Dawn spacecraft began orbiting in April 2015. Framing Camera data from the Approach (1.3 km/px) and Survey (415 m/px) orbits, including grayscale and color images and digital terrain models derived from stereo images, have enabled an initial characterization of the surface. Ceres has been divided into 15 quadrangles, and this abstract discusses the geology of the Ac-H-8 Nawish Quadrangle, located between -22-22˚ and 144-216˚E. The quadrangle's name comes from the 75 km diameter crater Nawish which is located in the northern sector of the quadrangle. Nawish crater has a 3 km diameter central peak composed by a very bright material. This very bright material is being mapped elsewhere in the quadrangle in association with crater-related structures as rims or ejecta field. The western part of the quadrangle shows a ‘smooth material’ that hosts a significantly lower impact crater density than most of the rest of Ceres’ surface. This smooth material extends beyond Nawish to the west, and a key goal of ongoing mapping will be to determine the possible resurfacing processes that formed this unit. Another primary feature of the study area is an unamed, partially degraded, 100-km crater in the central bottom sector of the quadrangle. The topography of the quadrangle obtained from stereo-processing of imagery, shows an highland in the middle of the quadrangle. The topography is lower in the northern and southern borders of the quadrangle, with an altitude range of about 9500 meters. Future work will include more detailed definition and characterization of surface units and estimates of their compositional variations through study of color images and Visible and Infrared spectrometer data, and application of crater statistical techniques to obtain model ages of surface units.

Item URL in elib:https://elib.dlr.de/101363/
Document Type:Conference or Workshop Item (Poster)
Title:Initial Geologic Mapping of the AC-H-8 Nawish Quadrangle of Ceres using DAWN Spacecraft Data
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Frigeri, AlessandroIstituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica,via del Fosso del Cavaliere, 00133 Roma, ItalyUNSPECIFIEDUNSPECIFIED
Sanctis, Maria Cristina DeINAF—Istituto di Astrofisica Spaziale e Fisica Cosmica, Via Fosso del Cavaliere 100, 00133 Roma, ItalyUNSPECIFIEDUNSPECIFIED
Carrorro, FilippoINAF—Istituto di Astrofisica Spaziale e Fisica Cosmica, Via Fosso del Cavaliere 100, 00133 Roma, ItalyUNSPECIFIEDUNSPECIFIED
Williams, DavidArizona State UniversityUNSPECIFIEDUNSPECIFIED
Mest, Scott CharlesPlanetary Science Institute, Tucson, AZ, United States.UNSPECIFIEDUNSPECIFIED
Buczkowski, DebraJHU-APL, Laurel, MD, United States.UNSPECIFIEDUNSPECIFIED
Scully, JenniferNASA JPL, California Institute of Technology, Pasadena, CaliforniaUNSPECIFIEDUNSPECIFIED
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Dawn, Ceres, Geological Map
Event Title:GSA Annual Meeting
Event Location:Baltimore, Maryland, USA
Event Type:international Conference
Event Start Date:1 November 2015
Event End Date:4 November 2015
Organizer:The Geological Society of America
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Project DAWN (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Geodesy
Institute of Planetary Research > Planetary Geology
Deposited By: Scholten, Dipl.-Ing. Frank
Deposited On:05 Jan 2016 13:08
Last Modified:24 Apr 2024 20:06

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