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The measurement includes both P and S wave velocity determinations. Accuracies in P and S wave velocity measurements are 1 and 2 per cent respectively. The variation of elastic constants as a function of pressure together with the data of the modal analysis is reported. Discussions of the results are made with respect to the relation between P wave velocity VP and density ρ, the effect of the serpentinization and also the Poisson\u0027s ratio of the various kinds of rocks. A linear relation VP=(2.8ρ-1.3)±0.5km/sec is given. The partial serpentinization of 20 per cent reduces the P wave velocity of dunite to 7.5km/sec and 50 per cent serpentinization reduces it to 6.8km/sec. Although both eclogite and fresh dunite give about the same P wave velocity, eclogite gives a higher Poisson\u0027s ratio and density than dunite. P wave velocity, density and Poisson\u0027s ratio of fresh dunite are in the proximity of the values of the earth\u0027s upper mantle so far estimated from the seismological data. 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13. Ultrasonic Measurement of Elastic Constants of Rocks under High, Pressures
https://doi.org/10.15083/0000033656
https://doi.org/10.15083/00000336563c89dab4-e30d-403f-8d45-1fcb49553164
名前 / ファイル | ライセンス | アクション |
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ji0431013.pdf (1.3 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2008-05-30 | |||||
タイトル | ||||||
タイトル | 13. Ultrasonic Measurement of Elastic Constants of Rocks under High, Pressures | |||||
言語 | en | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15083/0000033656 | |||||
ID登録タイプ | JaLC | |||||
その他のタイトル | ||||||
その他のタイトル | 13. 高圧下における岩石の弾性定数の測定 | |||||
著者 |
KANAMORI, Hiroo
× KANAMORI, Hiroo× MIZUTANI, Hitoshi |
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著者別名 | ||||||
識別子 | 131488 | |||||
識別子Scheme | WEKO | |||||
姓名 | 金森, 博雄 | |||||
著者別名 | ||||||
識別子 | 131489 | |||||
識別子Scheme | WEKO | |||||
姓名 | 水谷, 仁 | |||||
著者所属 | ||||||
著者所属 | Geophysical Institute, Faculty of Science, The University of Tokyo | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Ultrasonic determinations of elastic constants of various rocks under high pressures up to 10 kilobars were made. The measurement includes both P and S wave velocity determinations. Accuracies in P and S wave velocity measurements are 1 and 2 per cent respectively. The variation of elastic constants as a function of pressure together with the data of the modal analysis is reported. Discussions of the results are made with respect to the relation between P wave velocity VP and density ρ, the effect of the serpentinization and also the Poisson's ratio of the various kinds of rocks. A linear relation VP=(2.8ρ-1.3)±0.5km/sec is given. The partial serpentinization of 20 per cent reduces the P wave velocity of dunite to 7.5km/sec and 50 per cent serpentinization reduces it to 6.8km/sec. Although both eclogite and fresh dunite give about the same P wave velocity, eclogite gives a higher Poisson's ratio and density than dunite. P wave velocity, density and Poisson's ratio of fresh dunite are in the proximity of the values of the earth's upper mantle so far estimated from the seismological data. This is favourable to the peridotitic mantle hypothesis. | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 10kbまでのいろいろな岩石の弾性定数を測定した.測定法はジルコン酸鉛のトランスデューナーを用いて,P,Sの弾性波を発生し,その走時よりVP,VSを求めるものである.サンブルは直径22mm,長さ30~70mmの円柱状に成型し,空隙内に圧力媒体の油が浸み込むことを防止するため,薄い銅板でシールした.定時の測定には主に1Mc/secの水晶発振器を用いた.圧力装置には1000トンのケネディ型プレスを用いた. | |||||
書誌情報 |
東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo 巻 43, 号 1, p. 173-194, 発行日 1965-07-15 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00408972 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00162258 | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
日本十進分類法 | ||||||
主題 | 453 | |||||
主題Scheme | NDC | |||||
出版者 | ||||||
出版者 | 東京大学地震研究所 | |||||
出版者別名 | ||||||
Earthquake Research Institute, University of Tokyo |