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Statements

Subject Item
n2:RIV%2F67985530%3A_____%2F13%3A00394896%21RIV14-GA0-67985530
rdf:type
n8:Vysledek skos:Concept
dcterms: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.
dcterms: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
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
skos:notation
RIV/67985530:_____/13:00394896!RIV14-GA0-67985530
n8:predkladatel
n9:ico%3A67985530
n3:aktivita
n15:I n15:P
n3:aktivity
I, P(GAP210/12/1491), P(IAA300120801)
n3:cisloPeriodika
March
n3:dodaniDat
n4:2014
n3:domaciTvurceVysledku
n16:4755405
n3:druhVysledku
n14:J
n3:duvernostUdaju
n19:S
n3:entitaPredkladatele
n17:predkladatel
n3:idSjednocenehoVysledku
68879
n3:idVysledku
RIV/67985530:_____/13:00394896
n3:jazykVysledku
n13:eng
n3:klicovaSlova
moment tensors; non-double-couple components; microseismicity; mining; finite-difference modelling
n3:klicoveSlovo
n10:finite-difference%20modelling n10:non-double-couple%20components n10:microseismicity n10:moment%20tensors n10:mining
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[E35A69C31DC3]
n3:nazevZdroje
Tectonophysics
n3:obor
n18:DC
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
2
n3:projekt
n12:IAA300120801 n12:GAP210%2F12%2F1491
n3:rokUplatneniVysledku
n4:2013
n3:svazekPeriodika
589
n3:tvurceVysledku
Vavryčuk, Václav Kühn, D.
n3:wos
000317878000003
s:issn
0040-1951
s:numberOfPages
11
n6:doi
10.1016/j.tecto.2012.12.033