2015 Fiscal Year Final Research Report
Laboratory simulations of Martian landforms
| Project/Area Number |
25560143
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Geography
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| Research Institution | University of Tsukuba |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
HATTANJI Tsuyoshi 筑波大学, 生命環境系, 講師 (00418625)
IKEDA Atsushi 筑波大学, 生命環境系, 准教授 (60431657)
SEKIGUCHI Tomohiro 筑波大学, 生命環境系, 講師 (90400647)
PARKNER Thomas 筑波大学, 生命環境系, 助教 (90589996)
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| Research Collaborator |
SATO Masato
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | 火星 / 地形 / 室内実験 / 惑星探査 / 永久凍土 / 堆積作用 / 風化作用 |
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| Outline of Final Research Achievements |
Laboratory experiments were conducted to simulate small-scale geomorphic processes possibly operating on the Martian surface, using low-temperature climate cabinets and two-directional vibration boards. Field experiments were also undertaken in a High Arctic site that represents Martian environments. Experiments on salt weathering indicate that rock comminution depends on the type of rock and salt, minimum temperature and humidity change. Experiments on sorted patterned ground suggest that sorting process depends on slope gradient, sizes and ratio of stones and cooling intensity. Vibration experiments show that dune forms depend on the rate and duration of vibration and intersection angles of vibration. Field experiments on thermal contraction cracking allow us to evaluate the threshold for cracking and the possible extent of polygons on Mars. These results and reviews of recent studies on Martian surface processes are combined to publish a special issue of Journal of Geography.
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| Free Research Field |
地形学
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