@article{oai:nipr.repo.nii.ac.jp:00001228,
 author = {Fujii, Naoyuki and Miyamoto, Masamichi and Kobayashi, Yoji and Ito, Keisuke},
 journal = {Memoirs of National Institute of Polar Research. Special issue},
 month = {Dec},
 note = {P(論文), 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.},
 pages = {362--371},
 title = {Differences of relative strength among chondrites measured by the vibrational fracturing rate},
 volume = {20},
 year = {1981}
}