論文

2020年8月

Radar Sounding of Subsurface Structure in Eastern Coprates and Capri Chasmata, Mars

GEOPHYSICAL RESEARCH LETTERS
  • Rina Noguchi
  • ,
  • Ken Ishiyama
  • ,
  • Atsushi Kumamoto
  • ,
  • Chihiro Uemura
  • ,
  • Yasumasa Kasaba
  • ,
  • Tomohiro Usui
  • ,
  • Aina Oura
  • ,
  • Daigo Shoji

47
16
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1029/2020GL088556
出版者・発行元
AMER GEOPHYSICAL UNION

We surveyed the subsurface structure in eastern Coprates and Capri Chasmata in the equatorial region using high-resolution visible images, digital terrain models, and radar sounding data. We identified subsurface reflectors in four areas of the chasmata. At the stratigraphic exposure on the chasmata walls, the corresponding depth of the reflector is similar to 60 m. The bulk dielectric constants of the layers above the reflectors are calculated as 3.4-4.0, suggesting a rock-air mixture with similar to 39.3% and 46.1% porosity or a rock-air-ice mixture with <21.2% water ice fraction. This high porosity corresponds to nonwelded and unconsolidated sediments emplaced by aeolian, fluvial, and volcanic activities. If water ice actually exists, further studies and discussions are required for the mechanism to maintain it within low latitudes.

リンク情報
DOI
https://doi.org/10.1029/2020GL088556
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000566245300065&DestApp=WOS_CPL
ID情報
  • DOI : 10.1029/2020GL088556
  • ISSN : 0094-8276
  • eISSN : 1944-8007
  • Web of Science ID : WOS:000566245300065

エクスポート
BibTeX RIS