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0° 20° A '40° 60" ' 80° 0° 20° 40° 6a" I 



DlSTO RTION AL INCIDENT DlSTORTIONAL INCIDENT 



IN SLATE 'N GRANITE. 



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0° 20" 40* 60* 80° 



Condensational incident Condensational incident 



INS LATE. IN GRANITE 



ROCK and WATER INTERFACE. 

















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Condensational Wave 



INCID E NT 



20" 40° 60" 80" 



DlSTORTIONAL WAVE 

 INCIDENT 



