Počet záznamů: 1
The mechanism of microearthquakes related to a gas storage using differently constrained source models: a case study of the Háje location, Czech Republic
- 1.
SYSNO ASEP 0463879 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název The mechanism of microearthquakes related to a gas storage using differently constrained source models: a case study of the Háje location, Czech Republic Tvůrce(i) Jechumtálová, Zuzana (GFU-E) ORCID, RID
Šílený, Jan (GFU-E) ORCID, RID
Málek, Jiří (USMH-B) RID, ORCID, SAIZdroj.dok. Pure and Applied Geophysics. - : Springer - ISSN 0033-4553
Roč. 174, č. 1 (2017), s. 177-195Poč.str. 19 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova moment tensor ; shear-tonsile crack ; double couple Vědní obor RIV DC - Seismologie, vulkanologie a struktura Země Obor OECD Volcanology Vědní obor RIV – spolupráce Ústav struktury a mechaniky hornin - Seismologie, vulkanologie a struktura Země CEP GAP210/12/2235 GA ČR - Grantová agentura ČR GA16-03950S GA ČR - Grantová agentura ČR Institucionální podpora GFU-E - RVO:67985530 ; USMH-B - RVO:67985891 UT WOS 000391362100009 EID SCOPUS 85007521219 DOI 10.1007/s00024-016-1405-x Anotace The resolution of a source mechanism is investigated in terms of three differently constrained source models: the moment tensor, the shear-tensile crack source model, and the double couple source model. The moment tensor (MT) is an unconstrained description of a general dipole source. The shear-tensile crack (STC) represents a slip along a fault with an off-plane component and the double couple (DC) corresponds to a simple shear slip along a fault. The inversion of body wave amplitudes is applied on microseismic events located in the vicinity of underground gas storage Haje (Czech Republic) where volume changes in the source can be expected. The orientation of the simple shear fracture component is resolved almost always well, independently of the source model used. On the other hand, the non-shear components differ largely among the source models considered, from both the model definition and robustness of the inversion. A comparison of the inversion results for the three alternative source models permits an assessment of the reliability of the non-shear components retrieved. Application of the STC model to all events appears to be the most appropriate. The analysis confirms a shear slip for three events and a tensile fracturing for other three events. Pracoviště Geofyzikální ústav Kontakt Hana Krejzlíková, kniha@ig.cas.cz, Tel.: 267 103 028 Rok sběru 2018
Počet záznamů: 1