Open AccessAn Example of The Unified Method of Interpretation for Crustal Seismic Data
Author(s) -
Mueller S.,
Landisman M.
Publication year - 1971
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1971.tb01828.x
Subject(s) - geology , reflection (computer programming) , seismology , seismic refraction , interpretation (philosophy) , section (typography) , refraction , range (aeronautics) , structural basin , geophysics , geodesy , paleontology , optics , materials science , advertising , computer science , business , composite material , programming language , physics
Summary Two interpretations of the record section for a seismic refraction profile recorded in the Basin and Range area of western North America are presented which compare the results to be obtained from the apparent velocities and intercepts of first arrivals with those which may be found from a unified interpretation of all relevant data. The addition of nearby vertical‐incidence reflection data permits the identification of separate echoes from the tops and bottoms of two separate velocity inversions which are situated above and below the intermediate layer at depths of roughly 10 and 20 + km. The four wide‐angle reflection hyperbolae corresponding to these interfaces are concordant with strong and distinct wave groups in the record section, confirming the unified interpretation. Suggestions that the seismic refraction operations be curtailed, because of a supposed inability to detect intra‐crustal interfaces, are questioned in the light of this result.