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Early Martian tectonic evolution: A study through geological and geophysical perspectives

Research Project

Project/Area Number 18F18312
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section外国
Review Section Basic Section 17040:Solid earth sciences-related
Research InstitutionThe University of Tokyo

Principal Investigator

河合 研志  東京大学, 大学院理学系研究科(理学部)021, 准教授 (20432007)

Co-Investigator(Kenkyū-buntansha) RUJ TRISHIT  東京大学, 大学院理学系研究科(理学部), 外国人特別研究員
Project Period (FY) 2018-11-09 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 2019: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2018: ¥800,000 (Direct Cost: ¥800,000)
KeywordsImpact behavior / Mars tectonics / Heat loss / Wrinkle ridge / Hesperian Compression / Global Compression / Buffer Crater Count / Age estimation / Mars / Noachian / Tectonics / Thermal history / Mantle Convection / Mapping
Outline of Annual Research Achievements

Our research is themed to understand Martian heat loss mechanism.
We mimicked Hellas size giant impact, using iSALE-3D shock physics code and executed impact simulations and used the results to a time-dependent thermal convection of a fluid with an infinite Prandtl number and a temperature-dependent viscosity under the Boussinesq approximation in a cylinder.
Observed results indicate that the generation of thermal gradient, resembling plume and are significant in terms of the morphological observations, in and around the Hellas region.
We also estimated the age of the wrinkle ridges of Mars on a global scale and we observed a global compression in Hesperian time (Ruj and Kawai, submitted to Icarus, under review).
Research on Moon
In order to understand the mantle evolution of the Moon, we are working on the landing site of the Chang’E 4 landing site (Von Karman crater). We have prepared a geological map (taking morphology and mineralogy into count) of the landing site region, and now we are working on the timing and type of volcanic material found in and around the landing site.

Research Progress Status

令和元年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和元年度が最終年度であるため、記入しない。

Report

(2 results)
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (10 results)

All 2019 Other

All Int'l Joint Research (5 results) Journal Article (2 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (3 results) (of which Int'l Joint Research: 2 results)

  • [Int'l Joint Research] Universita d’Annunzio(イタリア)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Sun Yat-sen University(中国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Indian Institute of Technology Kanpur(インド)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] UNIVERSITA DEGLI STUDI “G. dANNUNZIO”(イタリア)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Wilhelms-Universitat(ドイツ)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] The Goshogake mud volcano field, Tohoku, northern Japan: An acidic, high-temperature system related to magmatic volcanism2019

    • Author(s)
      Komatsu, G., R. Ishimaru, N. Miyake, K. Kawai, M. Kobayashi, H. Sakuma, and T. Matsui
    • Journal Title

      Geomorphology

      Volume: 329 Pages: 32-45

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Timings of early crustal activity in southern highlands of Mars: Periods of crustal stretching and shortening2019

    • Author(s)
      Ruj, T., Komatsu, G., Pasckert, J.H., and Dohm, J.M.
    • Journal Title

      Geoscience Frontiers

      Volume: 10 Pages: 1029-1037

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Possible Earth-like tectonic scenario on Mars; a mineralogical and geochemical perspective2019

    • Author(s)
      Trishit Ruj, Gene W Schimdt, Goro Komatsu, Kenji Kawai
    • Organizer
      JpGU2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] Sedimentary Records Of Ancient Mud Volcanism: How Do We Identify Mud Volcanoes In The Strattgraphy Of Mars?2019

    • Author(s)
      G. Komatsu, R. Ishimaru, K. Kawai, N. Miyake, M. Kobayashi, T. Matsui
    • Organizer
      50th Lunar and Planetary Science Conference in The Woodlands
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Early Martian crustal dynamics; Investigation from oldest highland terrain2019

    • Author(s)
      Ruj, T.
    • Organizer
      Science and Technology of Nano-Polycrystalline Diamond, STNPD-2019
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research

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Published: 2018-11-12   Modified: 2024-03-26  

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