Open AccessLow velocity zone reflections observed in geometrical shadows of refraction profiles
Author(s) -
McMechan George A.
Publication year - 1982
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.1982.tb04998.x
Subject(s) - seismogram , geology , refraction , reflection (computer programming) , inversion (geology) , shadow (psychology) , reflectivity , seismology , geophysics , optics , mineralogy , physics , tectonics , psychology , computer science , psychotherapist , programming language
Summary. A low‐velocity zone (LVZ) shadow on a refraction profile may contain coherent energy. If the LVZ contains reflectors, the corresponding pre‐critical reflection branches will lie within the geometrical shadow. Such energy is observed in data and can, via inversion or synthetic seismogram modelling, potentially provide information on the location and character of the main structural features (those with significant reflectivity) within the LVZ.