GEOSCAN, résultats de la recherche


TitreVMS ore lens imaging and modeling using vertical seismic profiles from Flin Flon, MB
AuteurMelanson, D M; White, D J; Samson, C; Bellefleur, G; Schetselaar, E
SourcePDAC International Convention, abstracts; 2014 p. 1
LiensOnline - En ligne
Séries alt.Secteur des sciences de la Terre, Contribution externe 20140428
RéunionPDAC-SEG Student Minerals Colloquium, PDAC International Convention; Toronto; CA; mars 2-6, 2014
Mediaen ligne; numérique
Lat/Long OENS-102.0000 -101.5000 55.0000 54.7500
Sujetsgîtes sulfureux; levés sismiques; profils sismiques; levés géophysiques; établissement de modèles; géophysique; Précambrien
ProgrammeDéveloppements méthodologie, Initiative géoscientifique ciblée (IGC-4)
Résumé(disponible en anglais seulement)
One of the main drivers of recent geophysical research in mineral exploration is to explore and define targets at greater depths. Seismic method s, including Vertical Seismic Profiling (VSP), currently provide the most powerful potential means to do so. In October 2006, three-component VSP data usi ng dynamite and vibroseis sources were acquired from three deviated wells in the Flin Flon mining camp as part of a larger 3D seismic survey. These VSP data potentially contain a reflection signature of the 85.5 Mt Flin Flon-Callinan-777 VMS ore system. From the many drill records, surficial maps and seismic data, a 3D voxel model of the local geology and known ore lenses has been built, which can be used in 3D finite difference-modeled simulations of the VSP surveys. The number of geological units partitioning the 3D voxel model is increased incrementally to study the effects on seismic res ponse of massive sulfide ore and major rock units. The simulations are jointly visualized with the VSP data to aid interpretation.