Elastic constants of crustal minerals and their temperature dependence
| Project/Area Number |
22540436
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Solid earth and planetary physics
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| Research Institution | University of Toyama |
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Principal Investigator |
WATANABE Tohru 富山大学, 大学院・理工学研究科(理学), 教授 (30262497)
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| Research Collaborator |
YONEDA Akira 岡山大学, 地球物質科学研究センター, 准教授 (10262841)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Keywords | 地殻・マントル物質 / 鉱物 / 弾性定数 / 共振法 / 温度依存性 / 地球・惑星内部構造 / 地球内部物性 |
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| Research Abstract |
A method for resonant ultrasound spectroscopy was constructed, which enables us to obtain elastic constants and their temperature derivatives of crustal minerals. Measurements were conducted on crystals of a chromian spinel and a garnet. At room temperature, elastic constants C11, C12 and C44 of garnet are determined to be 296.0, 111.2, 94.4 （GPa), respectively. The temperature derivatives are respectively -0.033, -0.014 and -0.011 （GPa/K). The method can be applied to study elastic properties of crustal minerals.
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Report
(4 results)
Research Products
(5 results)
