ReWARD Project
Refraction/Wide-Angle Reflections Database		 INGV-Italy
the Milan Section 		 INGV - Rome
R/WAR italian deep seismic data

click to see the large GIF image (63 KB)

This is a wonderful example of a reduced section-film using old N.Italy recordings.
Shot point: Lac-Negre (F), 1965; orientation:  LN -> ENE.



Main parametres:
Diployment: Azimuth: ~90°; Distance-interval: 40-400 Km; Number of rec. points: 60; reduction Velocity: 8,00 km/s.
Deduced(2): Critical distance Δc: 70 [km]; red. travel-time Tc at Δc: 2,75 [s]; Cross-over distance [Km]: 145; Moho depth-d.: 30 [km]


   

(1)
Choudhury M., Giese P., De Visintini G. (1971):
Crustal structure of the Alps: some general features from Explosion Seismology.
Bollettino di Geofisica teorica ed Applicata (B.G.T.A.), vol.XIII, n.51-52; Sept.-Dec. 1971; 211-240.
(partly presented at the XIV IUGG Gen. Assembly, Zurich 1967).

 (2)
Giese P., Prodeh1 C., Behnke C. (1967):
Ergebnisse refraktionsseismischer Messungen 1965 zwischen dem Französichen Zentralmassiv und den Westalpen.
Z. Geophys., 33, 215-261