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John Castagna : ウィキペディア英語版
Mudrock line
In rock physics and petrophysics, the mudrock line, also called Castagna's equation or Castagna's relation, is an empirical linear relation between seismic P-wave velocity and S-wave velocity in brine-saturated siliciclastic rocks (i.e. sandstones and shales).
The equation reads:
:V_p = 1.16 V_s + 1.36
Where V_p and V_s refer to P-wave velocity and S-wave velocity, respectively. Velocities are given in kilometers per second (km/s).
The name of the equation refers to John Castagna, professor of exploration geophysics at the University of Houston,〔http://www.geosc.uh.edu/people/faculty/john-castagna/index.php "University of Houston directory"〕 who discovered the relation while working for ARCO, an oil company that is now a subsidiary of BP.
==References==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Mudrock line」の詳細全文を読む



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