About: Determination of full moment tensors of microseismic events in a very heterogeneous mining environment

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About: Determination of full moment tensors of microseismic events in a very heterogeneous mining environment Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The determination of source parameters and full moment tensors in mines is a difficult task, especially, when the velocity model of the mining environment is complex and strongly heterogeneous. The heterogeneities in the velocity model are usually caused by the presence of ore bodies, host rocks, tunnel systems and large excavations due to mining activity. The mined-out cavities introduce strong velocity contrasts in the model, cause multiple scattering of waves and result in a complex wave field with long coda waves. We have analysed five blasts and five induced microseismic events recorded at the Pyhasalmi ore mine, Finland, and suggest a strategy of successfully inverting for the seismic moment tensors. We compute accurate locations using an eikonal solver and perform the time-domain moment tensor inversion from full waveforms using a generalized linear inversion. The determination of source parameters and full moment tensors in mines is a difficult task, especially, when the velocity model of the mining environment is complex and strongly heterogeneous. The heterogeneities in the velocity model are usually caused by the presence of ore bodies, host rocks, tunnel systems and large excavations due to mining activity. The mined-out cavities introduce strong velocity contrasts in the model, cause multiple scattering of waves and result in a complex wave field with long coda waves. We have analysed five blasts and five induced microseismic events recorded at the Pyhasalmi ore mine, Finland, and suggest a strategy of successfully inverting for the seismic moment tensors. We compute accurate locations using an eikonal solver and perform the time-domain moment tensor inversion from full waveforms using a generalized linear inversion. (en)
Title	Determination of full moment tensors of microseismic events in a very heterogeneous mining environment Determination of full moment tensors of microseismic events in a very heterogeneous mining environment (en)
skos:prefLabel	Determination of full moment tensors of microseismic events in a very heterogeneous mining environment Determination of full moment tensors of microseismic events in a very heterogeneous mining environment (en)
skos:notation	RIV/67985530:_____/13:00394896!RIV14-GA0-67985530
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GAP210/12/1491), P(IAA300120801)
http://linked.open...iv/cisloPeriodika	March
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Vavryčuk, Václav
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Geofyzikální ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	68879
http://linked.open...ai/riv/idVysledku	RIV/67985530:_____/13:00394896
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	moment tensors; non-double-couple components; microseismicity; mining; finite-difference modelling (en)
http://linked.open.../riv/klicoveSlovo	mining finite-difference modelling moment tensors non-double-couple components microseismicity
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[E35A69C31DC3]
http://linked.open...i/riv/nazevZdroje	Tectonophysics
http://linked.open...in/vavai/riv/obor	DC
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Seismic waves and sources in anisotropic media II Physical processes in an earthquake source: from micro- to macro-scale
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	589
http://linked.open...iv/tvurceVysledku	Vavryčuk, Václav Kühn, D.
http://linked.open...ain/vavai/riv/wos	000317878000003
issn	0040-1951
number of pages	11 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.tecto.2012.12.033

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