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Electrical conductivity and seismic velocity of the martian mantle: Signatures of large meteorite impacts

Ruedas, T. and Breuer, D. (2019) Electrical conductivity and seismic velocity of the martian mantle: Signatures of large meteorite impacts. 50th Lunar and Planetary Science Conference, 18-22 Mar 2019, The Woodlands, TX, USA.

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Official URL: http://www.hou.usra.edu/meetings/lpsc2019/pdf/2335.pdf

Abstract

In the early stage of its evolution, Mars has experienced many very large meteorite impacts that left craters or basins as visible surface structures. These structures are often also associated with gravity and magnetic anomalies and identifiable on global maps. However, information derived from these data is ambiguous, but other geophysical methods, e.g., seismics and electromagnetic imaging has not yet been applied to such a target. In this study, we revisit the results from numerical mantle convection models that were coupled with a petrological model of the martian mantle and attempt to calculate electrical conductivity and seismic bulk velocity distributions. We discuss the potential of electromagnetic and seismic observations for detecting or ascertaining impact structures, for clarifying the properties of their subsurface, and for the general characterization of the deep interior of Mars. The InSight seismometer and magnetometer may offer opportunities to test some of the predictions.

Item URL in elib:https://elib.dlr.de/129289/
Document Type:Conference or Workshop Item (Poster)
Title:Electrical conductivity and seismic velocity of the martian mantle: Signatures of large meteorite impacts
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ruedas, T.thomas.ruedas (at) dlr.dehttps://orcid.org/0000-0002-7739-1412
Breuer, D.doris.breuer (at) dlr.deUNSPECIFIED
Date:March 2019
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Impacts, Mars, Mantle convection, seismology, electrical conductivity
Event Title:50th Lunar and Planetary Science Conference
Event Location:The Woodlands, TX, USA
Event Type:international Conference
Event Dates:18-22 Mar 2019
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 - Vorhaben Exploration des Sonnensystems
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Physics
Deposited By: Ruedas Gomez, Thomas
Deposited On:30 Sep 2019 13:59
Last Modified:30 Sep 2019 13:59

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