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Abstract

Summary

In mineral exploration, a detailed description of the near-surface is important when seismic reflection is applied, because the heterogeneity of the shallow layers can influence the imaging of deeper targets. The use of surface waves can provide valuable information about the shallow subsurface but multichannel methods might be limited by the existence of lateral variations in the subsurface. On the contrary, surface-wave tomography has the potential to locate more accurately subsurface heterogeneities and lateral variations without lacking penetration depth. We apply surface-wave tomography on the mining site of Blötberget (Ludvika Mines, Sweden). A checkerboard test provides information about the resolution and is used for the parameterization of the initial model for the tomographic inversion. The results provide a detailed description of the shallow subsurface, showing the potential of using surface-wave tomography in seismic exploration, also for challenging data from mining sites.

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/content/papers/10.3997/2214-4609.201902464
2019-09-08
2024-03-28
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References

  1. Boiero, D.
    [2009]. Surface Wave Analysis for Building Shear Wave Velocity Models. Ph.D. Thesis.
    [Google Scholar]
  2. Da Col, F.
    [2013] Surface Wave Tomography at Exploration Scale. MSc Thesis.
    [Google Scholar]
  3. Malehmir, A., Durrheim, R., Bellefleur, G., Urosevic, M., Juhlin, C., White, D., Milkereit, B., and G.Campbell
    . [2012]. Seismic methods in mineral exploration and mine planning: A general overview of past and present case histories and a look into the future. Geophysics, 77, WC173–WC190. DOI: 10.1190/GEO2012‑0028.1.
    https://doi.org/10.1190/GEO2012-0028.1 [Google Scholar]
  4. Markovic, M., Maries, G., Malehmir, A., Bäckström, E., Schön, M., Jakobsson, J. and P.Marsden
    . [2018] Deep Targeting Iron-Oxide Mineralization Using Reflection Seismic Method: A Case Study from the Ludvika Mines Of Sweden. EAGE Near Surface Geoscience Conference & Exhibition 2018, Porto, Portugal. DOI: 10.3997/2214‑4609.201802702.
    https://doi.org/10.3997/2214-4609.201802702 [Google Scholar]
  5. Pan, Y., Xia, J., Xu, Y., Gao, L. and Z.Xu
    . [2016] Love-wave waveform inversion in time domain for shallow shear-wave velocity. Geophysics, 81, 2. DOI: 10.1190/GEO2014‑0225.1.
    https://doi.org/10.1190/GEO2014-0225.1 [Google Scholar]
  6. Papadopoulou, M., Da Col, F., Socco, L.V., Bäckström, E., Schön, M., MarsdenP. and A.Malehmir
    . [2018] Application of Surface-Wave Analysis for Mineral Exploration: A Case Study from Central Sweden. EAGE Near Surface Geoscience Conference & Exhibition 2018, Porto, Portugal. DOI: 10.3997/2214‑4609.201802704.
    https://doi.org/10.3997/2214-4609.201802704 [Google Scholar]
  7. Socco, L.V., Boiero, D., Bergamo, P., Garofalo, F., Yao, H., Van Der Hilst, R.D. and F.Da Col
    . [2014] Surface wave tomography to retrieve near surface velocity models. SEG Technical Program Expanded Abstracts 2014, 2013-2018. http://dx.doi.org/10.1190/segam2014-1278.1.
    [Google Scholar]
  8. Yao, H., van der Hilst, R.D., De Hoop, M.V.
    [2006]. Surface-wave array tomography in SE Tibet from ambient seismic noise and two-station analysis - I. Geophysical Journal International,166(2), 732–744. DOI: 10.1111/j.1365‑246X.2006.03028.x.
    https://doi.org/10.1111/j.1365-246X.2006.03028.x [Google Scholar]
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