Passive Seismic Ambient Noise Surface Wave Tomography Applied to Two Exploration Targets in Ontario, Canada

Richard Lynch; Dan Hollis; John McBride; Nick Arndt; Florent Brenguier; Aurélien Mordret; Pierre Boué; Sophie Beaupretre; Frank Santaguida; Dan Chisolm

doi:10.1080/22020586.2019.12073192

2nd Australasian Exploration Geoscience Conference: Data to Discovery

ISSN: 2202-0586
E-ISSN:

oa Passive Seismic Ambient Noise Surface Wave Tomography Applied to Two Exploration Targets in Ontario, Canada
Authors Richard Lynch^a, Dan Hollis^b, John McBride^c, Nick Arndt^d, Florent Brenguier^e, Aurélien Mordret^f, Pierre Boué^g, Sophie Beaupretre^h, Frank Santaguidaⁱ and Dan Chisolm^j
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^a Sisprobe, Hobart, , Australia, [email protected] ^b Sisprobe, Los Angeles, , USA, [email protected], ^a ^c Stillwater Canada Inc, . Colorado, , USA, [email protected], ^a ^d Sisprobe, Grenoble, , France, [email protected] ^e Sisprobe, Univ of Grenoble Alpes, Grenoble, , France, [email protected] ^f MIT, Sisprobe, Cambridge, , Mass, ., USA [email protected] ^g Sisprobe, Univ of Grenoble Alpes, Grenoble, , France, [email protected] ^h Sisprobe, Grenoble, , France, [email protected] ⁱ First Cobalt Corp, Toronto, , Canada, [email protected] ^j First Cobalt Corp, Toronto, , Canada, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2019, Issue 2nd Australasian Exploration Geoscience Conference: Data to Discovery, Dec 2019, p. 1 - 3
DOI: https://doi.org/10.1080/22020586.2019.12073192
- Published online: 01 Dec 2019

Abstract

Summary

As mineral exploration seeks deeper targets and targets under cover, the need for low cost and low impact subsurface imaging is increasingly important. A recent addition to the toolbox of geophysical methods is ambient noise surface wave tomography (ANSWT) which produces an S-wave velocity image of the subsurface using naturally occurring seismic signals from waves, oceans, trains, etc. - no active controlled seismic sources required. In this presentation, we provide a brief introduction of the ANSWT method and review two recent projects: Marathon Phase III and Schumann Lake, both projects located in Ontario, Canada.

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References

Campillo, M., 2006, Phase and correlation of ‘random’ seismic fields and the reconstruction of the Green function: Pure and Applied Geophysics, 163, 475–502, doi: 10.1007/s00024-005-0032-8.
Lobkis, O. I., and R. L. Weaver, 2001, On the emergence of the Green’s function in the correlations of a diffuse field: Journal of the Acoustical Society of America, 110, 3011–3017, doi: 10.1121/1.1417528.
Roux, P., K.G. Sabra, P. Gerstoft, W.A. Kuperman, and M.C. Fehler, 2005, P‐waves from cross‐correlation of seismic noise: Geophysical Research Letters, 32(19).
Shapiro, N. M., and M. Campillo, 2004, Emergence of broadband Rayleigh waves from correlations of the ambient seismic noise: Geophysical Research Letters, 31(7).
Snieder, R., 2007, Extracting the Greens function of attenuating heterogeneous acoustic media from uncorrelated waves: Journal of the Acoustical Society of America, 121, 2637–2643, doi: 10.1121/1.2713673.

/content/journals/10.1080/22020586.2019.12073192

Article Type: Research Article

Keyword(s): ambient seismic noise; Exploration under cover; geophysics; new technologies; passive seismic; seismic velocity model

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