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Crustal structure observed by the InSight mission to Mars

Kim, D. and Stähler, S. and Boehm, C. and Lekic, V. and Giardini, Domenico and Ceylan, S. and Clinton, J. and Davis, P. and Duran, C. and Khan, A. and Knapmeyer-Endrun, B. and Maguire, R. and Panning, M. and Plesa, Ana-Catalina and Schmerr, N. and Wieczorek, M. and Zenhäusern, Geraldine and Lognonne, P. and Banerdt, W. Bruce (2023) Crustal structure observed by the InSight mission to Mars. EGU General Assembly 2023, Vienna, Austria. doi: 10.5194/egusphere-egu23-12524.

Full text not available from this repository.

Official URL: https://meetingorganizer.copernicus.org/EGU23/EGU23-12524.html


After more than 4 Earth years of operation on the martian surface monitoring the planet’s ground vibrations, the InSight’s seismometer is now retired. Throughout the mission, analyses of body waves from marsquakes and impacts have led to important discoveries about the martian interior structure of the crust, mantle, and core. Recent detection of surface waves, together with gravimetric modeling enabled the characterization of crustal structure variations away from the InSight landing site and showed that average crustal velocity and density structure is similar between the northern lowlands and the southern highlands. Especially for the observed overtones and multi-orbiting surface waves in S1222a, we find the depth sensitivity expands down to the uppermost mantle close to 90 km. Furthermore, our 3D wavefield simulations show significantly broadened volumetric sensitivity of the higher-orbit surface waves. These new constraints obtained by our surface wave analyses provide an important opportunity not only to refine and verify our previous radially symmetric models of the planet’s interior structure but also to improve understanding of seismo-tectonic environments on Mars. Here, we summarize our recent effort in the analyses of surface waves on Mars and discuss the inferred crustal property and its global implications.

Item URL in elib:https://elib.dlr.de/196805/
Document Type:Conference or Workshop Item (Speech)
Title:Crustal structure observed by the InSight mission to Mars
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Kim, D.Institute of Geophysics, ETH Zurich, Zurich, Switzerlandhttps://orcid.org/0000-0003-4594-2336UNSPECIFIED
Stähler, S.Institute of Geophysics, ETH Zurich, SwitzerlandUNSPECIFIEDUNSPECIFIED
Boehm, C.Institute of Geophysics, ETH Zurich, Zürich, SwitzerlandUNSPECIFIEDUNSPECIFIED
Lekic, V.Department of Geology, University of Maryland, College Park, USAUNSPECIFIEDUNSPECIFIED
Giardini, DomenicoInstitute of Geophysics, ETH Zürich, Zürich, SwitzerlandUNSPECIFIEDUNSPECIFIED
Ceylan, S.Institute of Geophysics, ETH Zurich, SwitzerlandUNSPECIFIEDUNSPECIFIED
Clinton, J.Swiss Seismological Service, ETH Zürich, Zürich, SwitzerlandUNSPECIFIEDUNSPECIFIED
Davis, P.University of California, Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, CA, United StatesUNSPECIFIEDUNSPECIFIED
Duran, C.Institute of Geophysics, ETH Zürich, Zürich, SwitzerlandUNSPECIFIEDUNSPECIFIED
Khan, A.Institut für Geophysik, ETH Zürich, SwitzerlandUNSPECIFIEDUNSPECIFIED
Knapmeyer-Endrun, B.Seismological Observatory Bensberg, University of Cologne, Cologne, GermanyUNSPECIFIEDUNSPECIFIED
Maguire, R.Department of Geology, University of Illinois Urbana-Champaign, Champaign, USAUNSPECIFIEDUNSPECIFIED
Panning, M.Jet Propulsion Laboratory, California Institute of Technology, PasadenaUSAUNSPECIFIEDUNSPECIFIED
Plesa, Ana-CatalinaUNSPECIFIEDhttps://orcid.org/0000-0003-3366-7621UNSPECIFIED
Schmerr, N.Department of Geology, University of Maryland, College Park, USAUNSPECIFIEDUNSPECIFIED
Wieczorek, M.Observatoire de la Côte d’Azur, Laboratoire LagrangeUNSPECIFIEDUNSPECIFIED
Zenhäusern, GeraldineInstitute of Geophysics, ETH Zurich, SwitzerlandUNSPECIFIEDUNSPECIFIED
Lognonne, P.institut de physique du globe, paris, franceUNSPECIFIEDUNSPECIFIED
Banerdt, W. BruceJet Propulsion Laboratory, California Institute of Technology, Pasadena, USAhttps://orcid.org/0000-0003-3125-1542UNSPECIFIED
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:EGU23-12524
Keywords:Mars, InSight, Crustal structure, Seismic waves
Event Title:EGU General Assembly 2023
Event Location:Vienna, Austria
Event Type:international Conference
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 - Exploration of the Solar System, R - Planetary Evolution and Life, R - Project InSight - HP3
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Physics
Deposited By: Plesa, Dr. Ana-Catalina
Deposited On:01 Sep 2023 08:05
Last Modified:01 Sep 2023 08:05

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