Open AccessAnisotropy in the continental upper mantle: possible evidence from explosion seismology
Author(s) -
Hirn Alfred
Publication year - 1977
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.1977.tb03700.x
Subject(s) - geology , asthenosphere , lithosphere , anisotropy , seismology , mantle (geology) , seismic anisotropy , geophysics , amplitude , transition zone , azimuth , tectonics , physics , optics
Summary. Peculiarities of propagation in the upper mantle of western Europe are documented by profiles of stations recording body waves generated by explosions. Azimuthal variations of travel times and amplitudes of P waves and possible birefringence of S waves may be associated with an anisotropic layer at depths where the lithosphere‐asthenosphere transition is supposed to be.