| Project/Area Number |
26610174
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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 |
Petrology/Mineralogy/Economic geology
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| Research Institution | Kobe University |
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Principal Investigator |
Seto Yusuke 神戸大学, 理学研究科, 講師 (10399818)
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| Co-Investigator(Renkei-kenkyūsha) |
MIYAKE Akira 京都大学, 大学院理学研究科, 准教授 (10324609)
MATSUMOTO Megumi 神戸大学, 研究基盤センター, 特命技術員 (50725455)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | コンドリュール / ガス浮遊 / 無容器加熱 / 結晶成長 / 始原的隕石 / ガス浮遊法 |
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| Outline of Final Research Achievements |
We developed a gas-levitation system embedded in ambient-controlled tube furnace in order to reproduce micro-textures of chondrules, and to constrain their formation conditions.A vertical tube furnace was used as a heating device. An inner tube was inserted into the outer tube, and a gas-nozzle was set on at the top of the inner-tube. H2+CO2 mixed gas were introduced into the both inner and outer core tubes. Levitated samples were observed by a long focal CCD camera.Using the system, we demonstrated the containerless cooling experiments for molten silicate droplets. As stating materials, natural peridotite and oxide mixture corresponding to a type IIA chondrule were used. The present results showed that porphyritic texture is possible to be formed from fully molten states. The gas levitation system developed in the present study is a powerful technique to simulate the molten-quenched texture of early solar materials.
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