Projekteja vuodessa
Abstrakti
Correlations of ambient seismic noise recordings can lead to reconstruction of both surface and body waves. Extraction of body waves is more challenging because noise recordings are usually dominated by surface wave energy. Despite that, a few studies have shown that extraction of body waves is possible. In order to investigate the capability of ambient noise seismic interferometry in ore exploration, a full-scale 3D passive seismic experiment was conducted in Kylylahti mining area, eastern Finland. We used 50 m receiver spacing, array of ~1000 receivers and about 30 days recording time. Presented results indicate that road traffic and mine activities (both surface and underground) have dominant influence on noise characteristics in the survey area and generate omni-direectional noise of broad frequency spectrum. We observe possible body wave arrivals in high frequency range (>35 Hz) potentially related to underground mining activity sources. Such noise panels were used in virtual shot gather retrieval with clear body wave arrivals present.
Alkuperäiskieli | englanti |
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Otsikko | Proceedings of Exploration’ 17 : Seismic Methods & Exploration Workshop |
Toimittajat | G. Bellefleur, B. Milkereit |
Sivumäärä | 6 |
Kustantaja | Decennial Mineral Exploration Conferences |
Julkaisupäivä | lokak. 2017 |
Sivut | 51-56 |
Artikkeli no | Paper 9 |
Tila | Julkaistu - lokak. 2017 |
OKM-julkaisutyyppi | D3 Artikkeli ammatillisessa konferenssijulkaisussa |
Tapahtuma | Exploration - Toronto, Kanada Kesto: 21 lokak. 2017 → 25 lokak. 2017 |
Tieteenalat
- 1171 Geotieteet
Projektit
- 1 Päättynyt
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COGITO-MIN: COst-effective Geophysical Imaging Techniques for supporting Ongoing MINeral exploration in Europe
Koivisto, E. (Projektinjohtaja), Komminaho, K. (Osallistuja), Riedel, M. (Osallistuja), Luhta, T. (Osallistuja), Väkevä, S. (Osallistuja), Junno, N. (Osallistuja), Heikkinen, P. (Osallistuja) & Kukkonen, I. (Osallistuja)
01/01/2016 → 31/12/2018
Projekti: Tutkimusprojekti