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Tectonic analysis of fracturing associated with occator crater

Buczkoswki, D.L. and Scully, J.E.C. and Quick, L. and Castillo-Rogez, J. and Schenk, P. M. and Park, R. S. and Preusker, Frank and Jaumann, R and Raymond, Carol A. and Russel, C.T. (2019) Tectonic analysis of fracturing associated with occator crater. Icarus, 320, pp. 49-59. Elsevier. doi: 10.1016/j.icarus.2018.05.012. ISSN 0019-1035.

Full text not available from this repository.

Official URL: https://www.sciencedirect.com/science/article/abs/pii/S0019103517306747


Occator crater, a Ceres crater that hosts multiple bright spots on its floor, has several sets of fractures associated with it. A tectonic analysis of each of these fracture sets suggests that the concentric and radial fractures around the central pit and the concentric fractures high on the crater wall (near the rim) most likely formed due to well known impact cratering processes. Uplift of the crater floor due to magmatic injection is suggested to have resulted in the concentric floor fractures at the base of the crater wall, as well as the cross-cutting fractures in the lower part of the southwestern wall. A mathematical analysis shows that a cryomagmatic plume (diapir) could have both reached the height necessary to cause fracturing within Occator, and that the stresses required are reasonable. Expansion a lobate flow from beneath is proposed to have formed those linear fractures associated with the Vinalia Faculae. Circumferential fractures surrounding Occator appear to have formed due to the volumetric compaction of the ejecta blanket over the buried pre-existing topography.

Item URL in elib:https://elib.dlr.de/131244/
Document Type:Article
Title:Tectonic analysis of fracturing associated with occator crater
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Buczkoswki, D.L.Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723-6099 USAUNSPECIFIEDUNSPECIFIED
Scully, J.E.C.NASA JPL, California Institute of Technology, Pasadena, California, USAUNSPECIFIEDUNSPECIFIED
Quick, L.Center for Earth and Planetary Studies, Smithsonian Institution, Washington, DC, USAUNSPECIFIEDUNSPECIFIED
Castillo-Rogez, J.NASA Jet Propulsion Laboratory, USAUNSPECIFIEDUNSPECIFIED
Schenk, P. M.Lunar and Planetary Institute, Houston, TexasUNSPECIFIEDUNSPECIFIED
Park, R. S.Jet Propulsion Laboratory,California Institute of Technology, Pasadena, CA, USAUNSPECIFIEDUNSPECIFIED
Raymond, Carol A.Jet Propulsion Lab, California Institute of Technology, Pasadena, CA, United States.UNSPECIFIEDUNSPECIFIED
Russel, C.T.UCLA,Institute of Geophysics,Los Angeles,USAUNSPECIFIEDUNSPECIFIED
Date:1 March 2019
Journal or Publication Title:Icarus
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 49-59
Keywords:Dawn, Ceres, fracturing, crater, occator
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:25 Nov 2019 14:51
Last Modified:25 Nov 2019 14:51

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