中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 中国科学院地球与行星物理重点实验室
Repetitive marsquakes in Martian upper mantle

文献类型：期刊论文

作者Sun, Weijia1; Tkalcic, Hrvoje2
刊名NATURE COMMUNICATIONS
出版日期2022-03-30
卷号13期号:1页码:9
DOI10.1038/s41467-022-29329-x
英文摘要The authors detect 47 hitherto unreported low-frequency marsquakes originating from Cerberus Fossae at all times of the Martian day. The matched filter technique confirms repetitive events implying that the Martian mantle is dynamically active. Marsquakes excite seismic wavefield, allowing the Martian interior structures to be probed. However, the Martian seismic data recorded by InSight have a low signal-to-noise ratio, making the identification of marsquakes challenging. Here we use the Matched Filter technique and Benford's Law to detect hitherto undetected events. Based on nine marsquake templates, we report 47 newly detected events, >90% of which are associated with the two high-quality events located beneath Cerberus Fossae. They occurred at all times of the Martian day, thus excluding the tidal modulation (e.g., Phobos) as their cause. We attribute the newly discovered, low-frequency, repetitive events to magma movement associated with volcanic activity in the upper mantle beneath Cerberus Fossae. The continuous seismicity suggests that Cerberus Fossae is seismically highly active and that the Martian mantle is mobile.
WOS关键词CERBERUS FOSSAE ; SEISMIC ACTIVITY ; MARS SEISMICITY ; EARTHQUAKES ; MAGNITUDE ; EVOLUTION ; STRESSES ; EVENTS ; CRUST ; CORE
资助项目National Natural Science Foundation of China[42022026] ; National Natural Science Foundation of China[41720104006] ; National Natural Science Foundation of China[41774060] ; Youth Innovation Promotion Association CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS[IGGCAS-201904] ; Australian National University
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:000776282500022
出版者NATURE PORTFOLIO
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Australian National University ; Australian National University ; Australian National University ; Australian National University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Australian National University ; Australian National University ; Australian National University ; Australian National University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Australian National University ; Australian National University ; Australian National University ; Australian National University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Australian National University ; Australian National University ; Australian National University ; Australian National University
源URL[http://ir.iggcas.ac.cn/handle/132A11/105049]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Tkalcic, Hrvoje
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
2.Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT, Australia
推荐引用方式
GB/T 7714		 Sun, Weijia,Tkalcic, Hrvoje. Repetitive marsquakes in Martian upper mantle[J]. NATURE COMMUNICATIONS,2022,13(1):9.
APA Sun, Weijia,&Tkalcic, Hrvoje.(2022).Repetitive marsquakes in Martian upper mantle.NATURE COMMUNICATIONS,13(1),9.
MLA Sun, Weijia,et al."Repetitive marsquakes in Martian upper mantle".NATURE COMMUNICATIONS 13.1(2022):9.

入库方式： OAI收割

来源：地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。