Differences of relative strength among chondrites measured by the vibrational fracturing rate
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概要
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By using the vibrational fracturing rate method, differences of relative strength among H, L, LL and C chondrites are quantitatively measured. The relative strength is given by the value of log (V_o/V) where V_o is the vibrational fracturing rate of single crystal calcite and V is that of the sample. Condrites studied are classified into two groups. One has values of log (V_o/V) between 0.8 and 1.2 and the other has the values less than 0.1. The former includes chondrites of types H4,H5,H6,L3,L4 and L5,and the latter includes L6,LL5,LL6 and the matrix of C3. The former group has higher metal content than the latter. The relative strength of L chondrites decreases from L3 to L6. This relation can be attributed to the loss of volatile material from grain boundaries or to the heterogeneous thermal stress distribution in chondrite parent bodies. The vibrational fracturing rate shows little correlation with porosity and density.
- 国立極地研究所の論文
著者
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Ito Keisuke
Department Of Earth Sciences Faculty Of Science Kobe University
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Miyamoto Masamichi
Department of Earth and Planetary Science, Graduate School of Science, University of Tokyo
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Fujii Naoyuki
Department of Earth Sciences, Faculty of Science, Kobe University
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Kobayashi Yoji
Department of Earth Sciences, Faculty of Science, Kobe University
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Kobayashi Yoji
Department Of Earth Sciences Faculty Of Science Kobe University
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Fujii Naoyuki
Department Of Earth Sciences Faculty Of Science Kobe University
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Ito Keisuke
Department Of Applied Biological Chemistry Graduate School Of Agricultural And Life Sciences The Uni
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Miyamoto Masamichi
Department Of Earth And Planetary Science Graduate School Of Science University Of Tokyo
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