globalchange  > 气候变化与战略
DOI: 10.1038/s41561-020-0539-8
论文题名:
The seismicity of Mars
作者: Giardini D.; Lognonné P.; Banerdt W.B.; Pike W.T.; Christensen U.; Ceylan S.; Clinton J.F.; van Driel M.; Stähler S.C.; Böse M.; Garcia R.F.; Khan A.; Panning M.; Perrin C.; Banfield D.; Beucler E.; Charalambous C.; Euchner F.; Horleston A.; Jacob A.; Kawamura T.; Kedar S.; Mainsant G.; Scholz J.-R.; Smrekar S.E.; Spiga A.; Agard C.; Antonangeli D.; Barkaoui S.; Barrett E.; Combes P.; Conejero V.; Daubar I.; Drilleau M.; Ferrier C.; Gabsi T.; Gudkova T.; Hurst K.; Karakostas F.; King S.; Knapmeyer M.; Knapmeyer-Endrun B.; Llorca-Cejudo R.; Lucas A.; Luno L.; Margerin L.; McClean J.B.; Mimoun D.; Murdoch N.; Nimmo F.; Nonon M.; Pardo C.; Rivoldini A.; Manfredi J.A.R.; Samuel H.; Schimmel M.; Stott A.E.; Stutzmann E.; Teanby N.; Warren T.; Weber R.C.; Wieczorek M.; Yana C.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2020
卷: 13, 期:3
起始页码: 205
结束页码: 212
语种: 英语
英文关键词: frequency analysis ; magnitude ; Mars ; Moon ; S-wave ; seismic data ; seismicity ; seismograph ; wave propagation
英文摘要: The InSight (Interior Exploration using Seismic Investigations, Geodesy and Heat Transport) mission landed in Elysium Planitia on Mars on 26 November 2018 and fully deployed its seismometer by the end of February 2019. The mission aims to detect, characterize and locate seismic activity on Mars, and to further constrain the internal structure, composition and dynamics of the planet. Here, we present seismometer data recorded until 30 September 2019, which reveal that Mars is seismically active. We identify 174 marsquakes, comprising two distinct populations: 150 small-magnitude, high-frequency events with waves propagating at crustal depths and 24 low-frequency, subcrustal events of magnitude Mw 3–4 with waves propagating at various depths in the mantle. These marsquakes have spectral characteristics similar to the seismicity observed on the Earth and Moon. We determine that two of the largest detected marsquakes were located near the Cerberus Fossae fracture system. From the recorded seismicity, we constrain attenuation in the crust and mantle, and find indications of a potential low-S-wave-velocity layer in the upper mantle. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169600
Appears in Collections:气候变化与战略

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作者单位: Institute of Geophysics, Department of Earth Sciences, ETH Zurich, Zurich, Switzerland; Université de Paris, Institut de Physique du Globe de Paris, CNRS, Paris, France; Institut Universitaire de France, Paris, France; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; Department of Electrical and Electronic Engineering, Imperial College London, London, United Kingdom; Max Planck Institute for Solar System Research, Göttingen, Germany; Swiss Seismological Service (SED), ETH Zurich, Zurich, Switzerland; Institut Supérieur de l’Aéronautique et de l’Espace SUPAERO, Toulouse, France; Institute of Theoretical Physics, University of Zurich, Zurich, Switzerland; Cornell Center for Astrophysics and Planetary Science, Cornell University, Ithaca, NY, United States; Laboratoire de Planétologie et Géodynamique, Univ. Nantes, Univ. Angers, CNRS, Nantes, France; School of Earth Sciences, University of Bristol, Bristol, United Kingdom; Laboratoire de Météorologie Dynamique, Sorbonne University, Paris, France; Centre National d’Etudes Spatiales, Toulouse, France; Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, Muséum National d’Histoire Naturelle, Sorbonne University, Paris, France; Department of Earth, Environmental and Planetary Sciences, Brown University, Providence, RI, United States; Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, Russian Federation; Department of Geology, University of Maryland, College Park, MD, United States; Department of Geosciences, Virginia Polytechnic Institute, Blacksburg, VA, United States; DLR Institute of Planetary Research, Berlin, Germany; Bensberg Observatory, University of Cologne, Bergisch Gladbach, Germany; Institut de Recherche en Astrophysique et Planétologie, Université Toulouse III Paul Sabatier, CNRS, CNES, Toulouse, France; Dept. of Earth and Planetary Sciences, University of California Santa Cruz, Santa Cruz, CA, United States; Royal Observatory of Belgium, Brussels, Belgium; Centro de Astrobiologia—Instituto Nacional de Tecnica Aeroespacial, Madrid, Spain; The Institute of Earth Sciences Jaume Almera of the Spanish Scientific Research Council (ICTJA-CSIC), Barcelona, Spain; University of Oxford, Department of Physics, Oxford, United Kingdom; NASA Marshall Space Flight Center, Huntsville, AL, United States; Université Côte d’Azur, Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, Nice, France

Recommended Citation:
Giardini D.,Lognonné P.,Banerdt W.B.,et al. The seismicity of Mars[J]. Nature Geoscience,2020-01-01,13(3)
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