1887

Abstract

Summary

We use the autocorrelation of seismic noise to locate a fault zone in the near-surface at a prospective geothermal site in Singapore. Specifically, we analyse the variation in the peak frequency of autocorrelations, along with attempting to recover the zero-offset reflectivity beneath each seismic station. Our results are broadly consistent with other geophysical methods and with core from the borehole. The approach is straightforward in terms of data acquisition and processing, although we caution that there are limitations, primarily related to the interpretation of later signals that may be contaminated by multiples and the suspected breakdown in the theoretical assumptions underpinning the method.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.202320097
2023-09-03
2025-11-14
Loading full text...

Full text loading...

References

  1. Claerbout, J. F. (1968). Synthesis of a layered medium from its acoustic transmission response.Geophysics, 33(2), 264–269.
    [Google Scholar]
  2. Clayton, R. (2020). Imaging the Subsurface with Ambient Noise Autocorrelations.Seismological Research Letters, 91 (2A): 930–935.
    [Google Scholar]
  3. Draganov, D., Wapenaar, K., & Thorbecke, J. (2004). Passive seismic imaging in the presence of white noise sources.The Leading Edge, 23(9), 889–892.
    [Google Scholar]
  4. Li, Y.E., Zhang, Y., Nilot, E., Ku, T. (2019) Passive seismic methods for shallow and deep bedrock detection in Singapore.Fifth International Conference on Engineering Geophysics176–180.
    [Google Scholar]
  5. Nilot, E., Li, Y. E., Lythgoe, K. (2020) Bedrock detection based on seismic interferometry using ambient noise in Singapore.SEG Technical Program Expanded Abstracts3577–3581.
    [Google Scholar]
  6. Schuster, G. T., Yu, J., Sheng, J., & Rickett, J. (2004). Interferometric/daylight seismic imaging.Geophysical Journal International, 157(2), 838–852.
    [Google Scholar]
  7. Zhang, Y., Li, Y. E., & Ku, T. (2021). Soil/rock interface profiling using a new passive seismic survey: Autocorrelation seismic interferometry.Tunnelling and Underground Space Technology, 115, 104045.
    [Google Scholar]
/content/papers/10.3997/2214-4609.202320097
Loading
/content/papers/10.3997/2214-4609.202320097
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error