岡山県下の三朝層群の火山岩I : その弾性波速度と孔隙率・密度との関係
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概要
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Using the boring cores of the volcanic rocks of the Misasa group, Okayama Prefecture, the measurements of the elastic wave velocities (V_p) in these rocks are discussed with respect to the effect of effective porosity (P) or bulk density (d). These data are shown in Tables 1 and 2, and the relation between V_p and P or d is shown in Fig. 2〜5. When P is less than 7〜8%, we have approximately V_p=a-bP and V_p=-α+βd, where a, b, and β are constants which depend mainly on apparent density (D). When D is larger, in general, these constants are larger, that is, constants of basalt are larger than those of andesite.
- 地学団体研究会の論文
- 1967-03-25