Upper mantle structure of Mars from InSight seismic data-Reference-Cited by-同舟云学术

Upper mantle structure of Mars from InSight seismic data

Published:2021-07-23 Issue:6553 Volume:373 Page:434-438
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Khan Amir¹²^ORCID,Ceylan Savas¹^ORCID,van Driel Martin¹³^ORCID,Giardini Domenico¹^ORCID,Lognonné Philippe⁴^ORCID,Samuel Henri⁴,Schmerr Nicholas C.⁵^ORCID,Stähler Simon C.¹^ORCID,Duran Andrea C.¹^ORCID,Huang Quancheng⁵^ORCID,Kim Doyeon⁵^ORCID,Broquet Adrien⁶⁷^ORCID,Charalambous Constantinos⁸^ORCID,Clinton John F.⁹^ORCID,Davis Paul M.¹⁰^ORCID,Drilleau Mélanie¹¹^ORCID,Karakostas Foivos⁵^ORCID,Lekic Vedran⁵^ORCID,McLennan Scott M.¹²^ORCID,Maguire Ross R.⁵^ORCID,Michaut Chloé¹³¹⁴^ORCID,Panning Mark P.¹⁵^ORCID,Pike William T.⁸^ORCID,Pinot Baptiste¹¹^ORCID,Plasman Matthieu⁴^ORCID,Scholz John-Robert¹⁶^ORCID,Widmer-Schnidrig Rudolf¹⁷^ORCID,Spohn Tilman¹⁸^ORCID,Smrekar Suzanne E.¹⁵^ORCID,Banerdt William B.¹⁵^ORCID

Affiliation:

1. Institute of Geophysics, ETH Zürich, Zürich, Switzerland.

2. Physik-Institut, University of Zürich, Zürich, Switzerland.

3. Mondaic AG, Zypressenstrasse 82, 8004 Zürich, Switzerland.

4. Université de Paris, Institut de Physique du Globe de Paris, CNRS, Paris, France.

5. Department of Geology, University of Maryland, College Park, MD, USA.

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

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

8. Department of Electrical and Electronic Engineering, Imperial College London, London, UK.

9. Swiss Seismological Service, ETH Zürich, Zürich, Switzerland.

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

11. Institut Supérieur de l’Aéronautique et de l’Espace SUPAERO, Toulouse, France.

12. Department of Geosciences, Stony Brook University, Stony Brook, NY, USA.

13. Institut Universitaire de France, Paris, France.

14. Laboratoire de Géologie, Terre, Planétes, Environnement, Lyon, France.

15. Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA.

16. Max Planck Institute for Solar System Research, Göttingen, Germany.

17. Black Forest Observatory, Institute of Geodesy, University of Stuttgart, Stuttgart, Germany.

18. International Space Science Institute, Bern, Switzerland.

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

National Aeronautics and Space Administration

Agence Nationale de la Recherche

Centre National d’Etudes Spatiales

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference90 articles.

1. Initial results from the InSight mission on Mars

2. Geology of the InSight landing site on Mars

3. SEIS: Insight’s Seismic Experiment for Internal Structure of Mars