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Volume 68 Number 1
  • E-ISSN: 1365-2478
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Abstract

ABSTRACT

In mineral exploration, increased interest towards deeper mineralizations makes seismic methods attractive. One of the critical steps in seismic processing workflows is the static correction, which is applied to correct the effect of the shallow, highly heterogeneous subsurface layers, and improve the imaging of deeper targets. We showed an effective approach to estimate the statics, based on the analysis of surface waves (groundroll) contained in the seismic reflection data, and we applied it to a legacy seismic line acquired at the iron‐oxide mining site of Ludvika in Sweden. We applied surface‐wave methods that were originally developed for hydrocarbon exploration, modified as a step‐by‐step workflow to suit the different geologic context of hard‐rock sites. The workflow starts with the detection of sharp lateral variations in the subsurface, the existence of which is common at hard‐rock sites. Their location is subsequently used, to ensure that the dispersion curves extracted from the data are not affected by strong lateral variations of the subsurface properties. The dispersion curves are picked automatically, windowing the data and applying a wavefield transform. A pseudo‐2D time‐average S‐wave velocity and time‐average P‐wave velocity profile are obtained directly from the dispersion curves, after inverting only a reference curve. The time‐average P‐wave velocity profile is then used for the direct estimation of the one‐way traveltime, which provides the static corrections. The resulting P‐wave statics from the field data were compared with statics computed through conventional P‐wave tomography. Their difference was mostly negligible with more than 91% of the estimations being in agreement with the conventional statics, proving the effectiveness of the proposed workflow. The application of the statics obtained from surface waves provided a stacked section comparable with that obtained by applying tomostatics.

© 2020 European Association of Geoscientists & Engineers © 2019 European Association of Geoscientists & Engineers
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2019-11-27
2024-04-16

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References

  1. AkiK. and RichardsP.G.1980. Seismology. Theory and Methods. W.H. Freeman & Co.
     [Google Scholar]
  2. BalestriniF., DraganovD., MalehmirA., MarsdenP. and GhoseR.2020. Improved target illumination at Ludvika mines of Sweden through seismic‐interferometric surface‐wave suppression. Geophysical Prospecting68, 200–213.
     [Google Scholar]
  3. BergamoP., CominaC. and MaraschiniM.2011. Seismic characterization of shallow bedrock sites with multimodal Monte Carlo inversion of surface wave data. Soil Dynamics and Earthquake Engineering31, 530–534.
     [Google Scholar]
  4. BergamoP. and SoccoL.V.2014. Detection of sharp lateral discontinuities through the analysis of surface‐wave propagation. Geophysics79, EN77–EN90.
     [Google Scholar]
  5. BohlenT., KuglerS., KleinG. and TheilenF.2004. 1.5D inversion of lateral variation of Scholte‐wave dispersion. Geophysics69, 330–344.
     [Google Scholar]
  6. BoieroD., MarsdenP., EsaulovV., ZarkhidzeA. and VermeerP.2011. Building a near‐surface velocity model in the South Ghadames Basin: surface‐wave inversion to solve complex statics. SEG Technical Program, Houston, USA, Expanded Abstracts, 1811–1815.
  7. BoieroD. and SoccoL.V.2010. Retrieving lateral variation from surface wave dispersion curve analysis. Geophysical Prospecting58, 977–996.
     [Google Scholar]
  8. BräunigL., BuskeS., MalehmirA., BäckströmE., SchönM. and MarsdenP.2020. Seismic depth imaging of iron‐oxide deposits and their host rocks in the Ludvika mining area of central Sweden. Geophysical Prospecting68, 24–43.
     [Google Scholar]
  9. BuskeS., BellefleurG. and MalehmirA.2015. Introduction to special issue on “hard rock seismic imaging”. Geophysical Prospecting63, 751–753.
     [Google Scholar]
  10. CastoD.W., LukeB., Calderon‐MaciasC. and KaufmannR.2009. Interpreting surface‐wave data for a site with shallow bedrock. Journal of Environmental and Engineering Geophysics14, 115–127.
     [Google Scholar]
  11. CercatoM., CaraF., CardarelliE., Di FilippoG., Di GiulioG. and MilanaG.2010. Shear‐wave velocity profiling at sites with high stiffness contrasts: a comparison between invasive and non‐invasive methods. Near Surface Geophysics8, 75–94.
     [Google Scholar]
  12. ColomberoC., CojocariuE.I., CominaC. and SoccoL.V.2017. Imaging of sharp lateral variations in the subsoil: a numerical comparison of surface‐wave based methods. GNGTS 2017, Expanded Abstracts, 688–693.
  13. CoxM.J.G.1999. Static Corrections for Seismic Reflection Surveys. Tulsa, OK:Society of Exploration Geophysicists.
     [Google Scholar]
  14. DoumaH. and HaneyM.2011. Surface‐wave inversion for near‐surface shear‐wave velocity estimation at Coronation field. SEG Technical Program, San Antonio, USA, Expanded Abstracts, 1411–1415.
  15. EatonD.W., MilkereitB. and SalisburyM.H.2003. Hardrock seismic exploration: mature technologies adapted to new exploration targets. In: Hardrock Seismic Exploration (eds. EatonD.W., MilkereitB. and SalisburyM.H.), pp. 1−6. SEG.
     [Google Scholar]
  16. FotiS., HollenderF., GarofaloF., AlbarelloD., AstenM., BardP.Y., et al. 2018. Guidelines for the good practice of surface wave analysis: a product of the InterPACIFIC project. Bulletin of Earthquake Engineering16, 2367–2420.
     [Google Scholar]
  17. FotiS., LaiC.G., RixG.J. and StrobbiaC.2014. Surface Wave Methods for Near‐Surface Site Characterization. CRC Press.
     [Google Scholar]
  18. GercekJ.2007. Poisson's ratio values for rocks. International Journal of Rock Mechanics and Mining Sciences44, 1–13.
     [Google Scholar]
  19. GórszczykA., MalinowskiM. and BellefleurG.2015. Enhancing 3D post‐stack seismic data acquired in hardrock environment using 2D curvelet transform. Geophysical Prospecting63, 903–918.
     [Google Scholar]
  20. HarrisonC.B., UrosevicM. and StoltzE.2007. Processing and seismic inversion of the Intrepid seismic line at the St. Ives gold camp, Western Australia. Proceedings of Exploration 07: Fifth Decennial International Conference on Mineral Exploration, 1087–1090.
  21. HeinonenS., KukkonenI., HeikkinenP. and SchmittD.2011. High resolution reflection seismics integrated with deep drill hole data in Outokumpu, Finland. Geological Survey of Finland, Special Paper51, 105–118.
     [Google Scholar]
  22. HollisD., McBrideJ., GoodD., ArndtN., BrenguierF. and OlivierG.2018. Use of ambient noise surface wave tomography in mineral resource exploration and evaluation. SEG Technical Program, Anaheim, USA, Expanded Abstracts, 1937–1940.
  23. IvanovJ., MillerR. and PeterieS.2016. Detecting and delineating voids and mines using surface wave methods in Galena, Kansas. SEG Technical Program, Dallas, USA, Expanded Abstracts, 2344–2350.
  24. KarimpourM.2018. Processing workflow for estimation of dispersion curves from seismic data and QC. MSc thesis, Politecnico di Torino, Italy.
  25. L'HeureuxE., MilkereitB. and AdamE.2005. 3D seismic exploration for mineral deposits in hardrock environments. Recorder30, 36–39.
     [Google Scholar]
  26. MalehmirA., DurrheimR., BellefleurG., UrosevicM., JuhlinC., WhiteD.J., et al. 2012. Seismic methods in mineral exploration and mine planning: a general overview of past and present case histories and a look into the future. Geophysics77, WC173–WC190.
     [Google Scholar]
  27. MalehmirA., MariesG., BäckströmE., SchönM. and MarsdenP.2017. Developing cost‐effective seismic mineral exploration methods using a landstreammer and a drophammer. Scientific Reports7, 10325.
     [Google Scholar]
  28. MaraschiniM., BoieroD. and SoccoL.V.2009. P and S wave velocity model retrieved by multi modal surface wave analysis. 71st EAGE Conference and Exhibition, Amsterdam, The Netherlands, Expanded Abstracts, T010.
  29. MariesG., MalehmirA., BäckströmE., SchönM. and MarsdenP.2017. Downhole physical property logging for iron‐oxide exploration, rock quality, and mining: an example from central Sweden. Ore Geology Reviews9, 1–13.
     [Google Scholar]
  30. MarkovicM., MariesG., Malehmir, A., von KetelholdtJ., BäckströmE., SchönM.2020. Deep reflection seismic imaging of iron‐oxide deposits in the Ludvika mining area of central Sweden. Geophysical Prospecting68, 7–23.
     [Google Scholar]
  31. MarsdenD.1993. Static corrections—a review, Part 1. The Leading Edge12, 43–49.
     [Google Scholar]
  32. MiaoX., ZhengD., ZiL., ZhouZ. and MengG.2016. Robust multimodal surface‐wave inversion for shallow velocity and shear statics. SEG Technical Program, Dallas, USA, Expanded Abstracts, 4956–4960.
  33. Nasseri‐MoghaddamA., CascanteG. and HutchinsonJ.2005. A new quantitative procedure to determine the location and embedment depth of a void using surface waves. Journal of Environmental and Engineering Geophysics10, 51–64.
     [Google Scholar]
  34. NedimovićM.R. and WestG.F.2003. Crooked‐line 2D seismic reflection imaging in crystalline terrains: Part 1, data processing. Geophysics68, 274–285.
     [Google Scholar]
  35. ParkC.B., MillerR.D. and XiaJ.1998. Imaging dispersion curves of surface waves on multi‐channel record. SEG Technical Program, New Orleans, USA, Expanded Abstracts, 1377–1380.
  36. PileggiD., RossiD., LunedeiE. and AlbarelloD.2011. Seismic characterization of rigid sites in the ITACA database by ambient vibration monitoring and geological surveys. Bulletin of Earthquake Engineering9, 1839–1854.
     [Google Scholar]
  37. RectorJ.W., PfeiffeJ., HodgesS., KingmanJ. and SprottE.2015. Tomographic imaging of surface waves: a case study from the Phoenix Mine, Battle Mountain, Nevada. The Leading Edge34, 1360–1364.
     [Google Scholar]
  38. RichartJr.F.E., HallJr.J.R. and WoodsR.D.1970. Vibrations of Soils and Foundations. Englewood Cliffs, NJ: Prentice Hall.
     [Google Scholar]
  39. RobertsB., ZaleskiE., AdamE., PerronG., PetrieL., DrachW., et al. 1997. Seismic exploration of Manitouwadge Greenstone Belt, Ontario. Proceedings of Exploration 97: Fourth Decennial International Conference on Mineral Exploration, 451–454.
  40. RogersA.W.1981. Determination of static corrections. In: Developments in Geophysical Exploration Methods. The Developments Series (ed. A.A.Fitch). Springer.
     [Google Scholar]
  41. SaundersS., LambP. and SweeneyD.1991. High resolution seismic for resolving coal seam structure in difficult terrain. Geophysics22, 325–332.
     [Google Scholar]
  42. SharmaH., HollisD. and McBrideJ.2018. Application of ambient noise analysis and velocity modeling in mineral exploration. SEG Technical Program, Anaheim, USA, Expanded Abstracts, 3072–3076.
  43. ShermanC., RectorJ., DregerD. and GlaserS.2014. Seismic tunnel detection at Black Diamond Mines Regional Preserve. SEG Technical Program, Denver, USA, Expanded Abstracts, 2078–2082.
  44. SoccoL. and CominaC.2017. Time‐average velocity estimation through surface‐wave analysis: Part 2 – P‐wave velocity. Geophysics82, U61–U73.
     [Google Scholar]
  45. SoccoL., CominaC. and Khosro AnjomF.2017. Time‐average velocity estimation through surface‐wave analysis: Part 1 – S‐wave velocity. Geophysics82, U49–U59.
     [Google Scholar]
  46. SoccoL.V. and BoieroD.2008. Improved Monte Carlo inversion of surface wave data. Geophysical Prospecting56, 357–371.
     [Google Scholar]
  47. SoccoL.V., BoieroD., FotiS. and WisénR.2009. Laterally constrained inversion of ground roll from seismic reflection records. Geophysics74, G35–G45.
     [Google Scholar]
  48. SoumyaR., StewartR.R. and Al DulaijanK.2010. S‐wave velocity and statics from ground‐roll inversion. The Leading Edge29, 1250–1257.
     [Google Scholar]
  49. UrosevicM., KepicA., StolzE. and JuhlinC.2007. Seismic exploration of ore deposits in Western Australia. Proceedings of Exploration 07: Fifth Decennial International Conference on Mineral Exploration, 525–534.
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Surface‐wave analysis for static corrections in mineral exploration: A case study from central Sweden
Geophysical Prospecting 68, 214 (2020); https://doi.org/10.1111/1365-2478.12895
/content/journals/10.1111/1365-2478.12895
/content/journals/10.1111/1365-2478.12895
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  • Article Type: Research Article
Keyword(s): Mining; Statics; Surface waves

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