Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-refraction type
Patent
1981-02-26
1985-07-09
Moskowitz, Nelson
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Land-refraction type
367 68, 367 75, 364421, G01V 120, G01V 134
Patent
active
045286493
ABSTRACT:
The present invention provides for the accurate mapping of shallow crustal earth formations by means for refractive seismic waves to identify structure as well as elastic parameters of the strata undergoing survey to indicate deposits of ore, marker rock, economic minerals and the like. In one aspect of the present invention, a "roll-along" technique is used in the field, such technique being both practical and economical. In accordance with another aspect of the invention, there is a provision for (i) stacking displays that allow for accurate identification of shape of the surveyed strata; and (ii) final depth displays of the refracting bed segments associated with seismic shear and compressional wave velocities as well as Poisson's ratio to indicate presence of ore, marker rocks, economic minerals and the like.
REFERENCES:
Telford et al., "Applied Geophysics", 1976, p. 433, Cambridge University Press, U.K.; 7/77, pp. 432-435.
White, "Seismic Waves . . . ", Chapters 5 & 6, McGraw Hill.
Cagniard et al., "Reflection and Refraction . . . ", 1962, pp. 178-205, McGraw Hill.
Gulluly et al., "Principles of Geology", 1968, pp. 473-481, 3rd Edition, Freeman & Co., S.F.
Musgrave, "Seismic Refraction Prospecting", pp. 522-538, C. L. Elliot.
Goupillaud et al., "Utilization of Seismic Exploration . . . ", 4/77, all pages, ERD Contract EY076-C-1249.
Foster James I.
Gassaway Gary S.
Richgels Henry J.
Chevron Research Company
Keeling Edward J.
Messner H. D.
Moskowitz Nelson
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