Thickness and structure of the martian crust from InSight seismic data-Reference-Cited by-同舟云学术

Thickness and structure of the martian crust from InSight seismic data

Published:2021-07-23 Issue:6553 Volume:373 Page:438-443
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Knapmeyer-Endrun Brigitte¹^ORCID,Panning Mark P.²^ORCID,Bissig Felix³^ORCID,Joshi Rakshit⁴^ORCID,Khan Amir³⁵^ORCID,Kim Doyeon⁶^ORCID,Lekić Vedran⁶^ORCID,Tauzin Benoit⁷⁸^ORCID,Tharimena Saikiran²^ORCID,Plasman Matthieu⁹^ORCID,Compaire Nicolas¹⁰^ORCID,Garcia Raphael F.¹⁰^ORCID,Margerin Ludovic¹¹^ORCID,Schimmel Martin¹²^ORCID,Stutzmann Éléonore⁹^ORCID,Schmerr Nicholas⁶^ORCID,Bozdağ Ebru¹³^ORCID,Plesa Ana-Catalina¹⁴,Wieczorek Mark A.¹⁵^ORCID,Broquet Adrien¹⁵¹⁶^ORCID,Antonangeli Daniele¹⁷^ORCID,McLennan Scott M.¹⁸^ORCID,Samuel Henri⁹,Michaut Chloé¹⁹²⁰^ORCID,Pan Lu²¹^ORCID,Smrekar Suzanne E.²^ORCID,Johnson Catherine L.²²²³^ORCID,Brinkman Nienke³^ORCID,Mittelholz Anna³^ORCID,Rivoldini Attilio²⁴^ORCID,Davis Paul M.²⁵^ORCID,Lognonné Philippe⁹²⁰^ORCID,Pinot Baptiste¹⁰^ORCID,Scholz John-Robert⁴^ORCID,Stähler Simon³^ORCID,Knapmeyer Martin¹⁴^ORCID,van Driel Martin³^ORCID,Giardini Domenico³^ORCID,Banerdt W. Bruce²^ORCID

Affiliation:

1. Bensberg Observatory, University of Cologne, Vinzenz-Pallotti-Str. 26, 51429 Bergisch Gladbach, Germany.

2. Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., M/S 183-301, Pasadena, CA 91109, USA.

3. Institute of Geophysics, ETH Zurich, Sonneggstr. 5, 8092 Zürich, Switzerland.

4. Max Planck Institute for Solar System Research, Justus-von-Liebig-Weg 3, 37077 Göttingen, Germany.

5. Physik-Institut, University of Zurich, Zurich, Switzerland.

6. Department of Geology, University of Maryland, College Park, 8000 Regents Dr., College Park, MD, 20782-4211, USA.

7. Université de Lyon, Université Claude Bernard Lyon 1, Ecole Normale Supérieure de Lyon, Université Jean Monet, CNRS, Laboratoire de Géologie de Lyon, Terre, Planètes, Environnement, F-69622 Villeurbanne, France.

8. Research School of Earth Sciences, The Australian National University, Canberra, ACT 0200, Australia.

9. Université de Paris, Institut de Physique du Globe de Paris, CNRS, 1 rue Jussieu, F-75005 Paris, France.

10. Institut Supérieur de l’Aéronautique et de l’Espace SUPAERO, 10 Avenue Edouard Belin, 31400 Toulouse, France.

11. Institut de Recherche en Astrophysique et Planétologie, Université Toulouse III Paul Sabatier, CNRS, CNES, 14 Av. E. Belin, 31400 Toulouse, France.

12. Geosciences Barcelona–CSIC, Barcelona, Spain.

13. Department of Geophysics, Colorado School of Mines, 1500 Illinois St., Golden, CO 80401, USA.

14. Institute of Planetary Research, German Aerospace Center (DLR), 12489 Berlin, Germany.

15. Université Côte d’Azur, Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, 06304 Nice, France.

16. Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85721, USA.

17. Sorbonne Université, Muséum National d’Histoire Naturelle, UMR CNRS 7590, Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, IMPMC, 75005 Paris, France.

18. Department of Geosciences, Stony Brook University, Stony Brook, NY 11794-2100, USA.

19. Université de Lyon, Ecole Normale Supérieure de Lyon, Université Claude Bernard Lyon 1, Université Jean Monet, CNRS, Laboratoire de Géologie de Lyon, Terre, Planètes, Environnement, F-69007 Lyon, France.

20. Institut Universitaire de France, Paris, France.

21. Center for Star and Planet Formation, GLOBE Institute, University of Copenhagen, Copenhagen, Denmark.

22. Department of Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, BC V6T 1Z4, Canada.

23. Planetary Science Institute, Tucson, 1700 East Fort Lowell, Suite 106, Tucson, AZ 85719-2395, USA.

24. Royal Observatory of Belgium, Brussels, Belgium.

25. Department of Earth, Planetary, and Space Sciences, University of California, Los Angeles, CA 90095, USA.

Abstract

Single seismometer structure Because of the lack of direct seismic observations, the interior structure of Mars has been a mystery. Khan et al. , Knapmeyer-Endrun et al. , and Stähler et al. used recently detected marsquakes from the seismometer deployed during the InSight mission to map the interior of Mars (see the Perspective by Cottaar and Koelemeijer). Mars likely has a 24- to 72-kilometer-thick crust with a very deep lithosphere close to 500 kilometers. Similar to the Earth, a low-velocity layer probably exists beneath the lithosphere. The crust of Mars is likely highly enriched in radioactive elements that help to heat this layer at the expense of the interior. The core of Mars is liquid and large, ∼1830 kilometers, which means that the mantle has only one rocky layer rather than two like the Earth has. These results provide a preliminary structure of Mars that helps to constrain the different theories explaining the chemistry and internal dynamics of the planet. Science , abf2966, abf8966, abi7730, this issue p. 434 , p. 438 , p. 443 see also abj8914, p. 388

Funder

David and Lucile Packard Foundation

National Aeronautics and Space Administration

Jet Propulsion Laboratory

Agence Nationale de la Recherche

Canadian Space Agency

H2020 Marie Skłodowska-Curie Actions

Centre National d’Etudes Spatiales

Swiss National Science Foundation

Eidgenössische Technische Hochschule Zürich

Swiss State Secretariat for Education, Research and Innovation

NASA InSight mission