Info!
UPDATED 1 Sept: The EI library in London is temporarily closed to the public, as a precautionary measure in light of the ongoing COVID-19 situation. The Knowledge Service will still be answering email queries via email , or via live chats during working hours (09:15-17:00 GMT). Our e-library is always open for members here: eLibrary , for full-text access to over 200 e-books and millions of articles. Thank you for your patience.
UPDATED 1 Sept: The EI library in London is temporarily closed to the public, as a precautionary measure in light of the ongoing COVID-19 situation. The Knowledge Service will still be answering email queries via email , or via live chats during working hours (09:15-17:00 GMT). Our e-library is always open for members here: eLibrary , for full-text access to over 200 e-books and millions of articles. Thank you for your patience.
Gyrotropy and anisotropy of rocks---similarities and differences. T.I. Chichinina and I.R. Obolentseva. Rev. Inst. Francais Petrole, September-October 1998, 53(5), 655--667.
The comparison reported of gryotropic and non-gyrotropic propagation of shear waves in media of interest for seismic prospecting offers a clearer view of how to distinguish gyrotropy and anisotropy. The distinction being most difficult when a shear wave passes through a layer of insufficient thickness. For a medium with VS = 1.5 km/s and frequencies of about 20 Hz such difficulties can exist when layers are less than 200--400 m thick. 26 refs.
Abstract details
Journal title: Revue Institut Francais de Petrole
Subjects: Geophysics, Mapping Science, Oil and gas, Oil, Wave power
