The nature and cause of polarization anomalies of surface waves crossing northern and central Eurasia

Autor:	Michael H. Ritzwoller, Anatoli L. Levshin, L. I. Ratnikova
Rok vydání:	1994
Předmět:	geography geography.geographical_feature_category Sedimentary basin Polarization (waves) Great circle symbols.namesake Love wave Wavelength Geophysics Amplitude Geochemistry and Petrology Surface wave symbols Rayleigh scattering Seismology Geology
Zdroj:	Geophysical Journal International. 117:577-590
ISSN:	1365-246X 0956-540X
DOI:	10.1111/j.1365-246x.1994.tb02455.x
Popis:	SUMMARY Results of a pilot experiment preliminary to a systematic study of surface-wave polarization across Eurasia are presented. Long-period fundamental Rayleigh and Love waves recorded by the broad-band seismic stations KIV (Kislovodsk) and OBN (Obninsk) of the IRIS/IDA network deployed in the Former Soviet Union (FSU) were analysed from 14 events to the north-east, east and south-east of these stations in search of particle-motion anomalies using a technique called Frequency-Time Polarization Analysis (FTPAN). All anomalies indicate deviations of wave-propagation paths to the north relative to the great circle paths. Polarization anomalies at OBN are uniformly small (
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4bb9a00072e3621fe6017f46a6fbf860 https://doi.org/10.1111/j.1365-246x.1994.tb02455.x Zobrazit plný text záznamu Plný text