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Preliminary geological map of the AC-H-1 quadrangle- an integrated mapping study usind Dawn spacecraft data

Ruesch, Ottaviano and McFadden, Lucy A. and Hiesinger, Harald and Scully, J.E.C. and Kneissl, T. and Kynan, H.G. and Williams, David and Roatsch, Thomas and Preusker, Frank (2015) Preliminary geological map of the AC-H-1 quadrangle- an integrated mapping study usind Dawn spacecraft data. GSA 2015, 2-5 Nov 2015, Baltimore, MD.

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We present a photo-geological map of the “Asari” quadrangle covering the North Pole area of Ceres (66°N-90°N), based on Dawn Framing Camera images and mosaics with a resolution of ~400 m/pixel. The mapping process is supported by a stereo- photogrammetric digital elevation model. We identified few isolated plateaus of up to ~5 km in altitude relative to the datum and topographic depressions interpreted to be highly degraded impact basins. At 85°N/8°E a cone-shaped positive relief is found, few te of kms large. Overall, the entire quadrangle is heavily cratered, and our measurements of crater density (9.8E-04 km-2 for crater diameters >10 km) identify the area as the most cratered on Ceres. This suggest a different geological history of the quadrangle relative to, e.g., the equatorial regions. The morphology of impact craters is characterized by central peaks and mass wasting deposits. We identified a morphologically-fresh mass wasting deposit at 78°N/38°E, 20 km in length, with a lobate margin and striations on its surface. This deposit and the positive relief at 85°N/8°E will be the focus of future investigations when higher spatia resolution images will be acquired by the Dawn Framing Camera. Observations with a spatial resolution of up to 35 m/pixel are planned and will allow photo-geological mapping at higher details. Support by N. Schmedemann, S. Marchi, R. Jaumann, A. Nathue C.A. Raymond, C.T. Russell, and the Dawn Instrument, Operations, and Science Teams is acknowledged.

Item URL in elib:https://elib.dlr.de/101750/
Document Type:Conference or Workshop Item (Poster)
Title:Preliminary geological map of the AC-H-1 quadrangle- an integrated mapping study usind Dawn spacecraft data
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ruesch, Ottavianoottaviano.ruesch (at) nasa.govUNSPECIFIED
McFadden, Lucy A.NASA Goddard Space Flight Center, Greenbelt, MD 20771, USAUNSPECIFIED
Hiesinger, HaraldWestfälische Wilhelms-Universität MünsterUNSPECIFIED
Scully, J.E.C.NASA JPL, California Institute of Technology, Pasadena, CaliforniaUNSPECIFIED
Kneissl, T.Freie Universität Berlin, Inst. of Geosciences, Planetology and Remote SensingUNSPECIFIED
Williams, DavidArizona State UniversityUNSPECIFIED
Roatsch, Thomasthomas.roatsch (at) dlr.deUNSPECIFIED
Preusker, Frankfrank.preusker (at) dlr.deUNSPECIFIED
Date:4 November 2015
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Dawn, Ceres, dwarf planets
Event Title:GSA 2015
Event Location:Baltimore, MD
Event Type:international Conference
Event Dates:2-5 Nov 2015
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: Roatsch, Dr.rer.nat. Thomas
Deposited On:06 Jan 2016 15:00
Last Modified:10 May 2016 23:41

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