Anisotropic lithosphere under the Fennoscandian shield from P receiver functions and SKS waveforms of the POLENET/LAPNET array

Vinnik, L.; Oreshin, S.; Makeyeva, L.; Peregoudov, D.; Kozlovskaya, E.; Pedersen, H.; Plomerová, Jaroslava; Achauer, U.; Kissling, E.; Sanina, I.; Jämsen, T.; Silvennoinen, H.; Pequegnat, C.; Hurskainen, R.; Guiguet, R.; Hausmann, H.; Jedlička, Petr; Aleshin, I.; Bourova, E.; Bodvarsson, R.; Brückl, E.; Eken, T.; Heikkinen, P.; Houseman, G.; Johnsen, H.; Kremenetskaya, E.; Komminaho, K.; Munzarová, Helena; Roberts, R.; Růžek, Bohuslav; Shomali, H.; Schweitzer, J.; Shaumyan, A.; Vecsey, Luděk; Volosov, S.

doi:https://dx.doi.org/10.1016/j.tecto.2014.04.024

Počet záznamů: 1

Anisotropic lithosphere under the Fennoscandian shield from P receiver functions and SKS waveforms of the POLENET/LAPNET array

1.

SYSNO ASEP	0433164
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Anisotropic lithosphere under the Fennoscandian shield from P receiver functions and SKS waveforms of the POLENET/LAPNET array
Tvůrce(i)	Vinnik, L. (RU) Oreshin, S. (RU) Makeyeva, L. (RU) Peregoudov, D. (RU) Kozlovskaya, E. (FI) Pedersen, H. (FR) Plomerová, Jaroslava (GFU-E)_{ORCID, RID, SAI} Achauer, U. (FR) Kissling, E. (CH) Sanina, I. (RU) Jämsen, T. (FI) Silvennoinen, H. (FI) Pequegnat, C. (FR) Hurskainen, R. (FI) Guiguet, R. (FR) Hausmann, H. (AT) Jedlička, Petr (GFU-E)_{ORCID, RID} Aleshin, I. (RU) Bourova, E. (FR) Bodvarsson, R. (SE) Brückl, E. (AT) Eken, T. (DE) Heikkinen, P. (FI) Houseman, G. (GB) Johnsen, H. (NO) Kremenetskaya, E. (RU) Komminaho, K. (FI) Munzarová, Helena (GFU-E)_{ORCID, RID, SAI} Roberts, R. (SE) Růžek, Bohuslav (GFU-E)_{ORCID, RID} Shomali, H. (SE) Schweitzer, J. (NO) Shaumyan, A. (RU) Vecsey, Luděk (GFU-E)_{ORCID, RID, SAI} Volosov, S. (RU)
Celkový počet autorů	35
Zdroj.dok.	Tectonophysics. - : Elsevier - ISSN 0040-1951 Roč. 628, July (2014), s. 45-54
Poč.str.	10 s.
Forma vydání	Tištěná - P
Jazyk dok.	eng - angličtina
Země vyd.	NL - Nizozemsko
Klíč. slova	lithosphere ; asthenosphere ; seismic anisotropy ; mantle flow ; receiver functions ; shear-wave splitting
Vědní obor RIV	DC - Seismologie, vulkanologie a struktura Země
CEP	IAA300120709 GA AV ČR - Akademie věd
Institucionální podpora	GFU-E - RVO:67985530
UT WOS	000340333000003
DOI	10.1016/j.tecto.2014.04.024
Anotace	Seismic azimuthal anisotropy is the key evidence of the past and present strains in the upper mantle. The standard analysis of shear-wave splitting with the SKS techniques is useful in mapping lateral variations but it is insensitive to depth of anisotropy and to variations of anisotropy with depth. To retrieve the depth localized anisotropy under the Fennoscandian shield, we inverted P-wave receiver functions of the POLENET/LAPNET array in northern Finland jointly with SKS recordings. Shear-wave anisotropy of similar to 2.5% with the fast direction of 40 degrees-60 degrees in a depth range from the Moho to similar to 110 km is a robust result of the inversion. The obtained direction is nearly normal to the azimuth of the maximum horizontal compressional stress in the lithosphere, but a recent origin of this anisotropy is in doubt. This anisotropy may be frozen since the Precambrian, but it shows no clear relation with the trends of the Precambrian tectonics. The upper anisotropic layer accounts for similar to 40% of shear-wave splitting in SKS, and to explain the rest another anisotropic layer is required.
Pracoviště	Geofyzikální ústav
Kontakt	Hana Krejzlíková, kniha@ig.cas.cz, Tel.: 267 103 028
Rok sběru	2015

Počet záznamů: 1