Details
| Original language | English |
|---|---|
| Title of host publication | 24th European Meeting of Environmental and Engineering Geophysics |
| Pages | 1-5 |
| Number of pages | 5 |
| ISBN (electronic) | 9789462822634 |
| Publication status | Published - 9 Sept 2018 |
| Externally published | Yes |
| Event | 24th European Meeting of Environmental and Engineering Geophysics - Porto, Portugal Duration: 9 Sept 2018 → 12 Sept 2018 |
Abstract
S-wave seismic imaging complements the application of P-waves with benefits, e.g., in resolution and petrophysical parameters. However S-wave imaging strongly depends on subsurface conditions. We investigate two overdeepened Alpine basins with P-wave and S-wave seismic methods using single-component and multi-components: (1) The Tannwald basin, located in the Alpine foreland, and (2) the inner-alpine Lienz Basin. These basins have a 3-D shape and a spatially-varying internal structure that constitute promising study areas. Here, we present two profiles of S-wave seismic reflection imaging using 6-components, i.e. 3-C geophones and a horizontal vibrator sources exciting in two directions. The interpretation of coincident P-wave profiles benchmark the S-wave data. The seismic S-wave sections show most geological structures on the components that have same source-receiver orientation and, thus, corresponds to the SV- and SH-domains. We are able to detect S-wave reflections and diffractions of the basin base down to 600 m depth (2 s TWT). Reflectivity on the other (mixed) components indicate a large amount of wave conversion. The application of S-waves increases the resolution and is able to improve seismic imaging in these environments.
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Geotechnical Engineering and Engineering Geology
- Earth and Planetary Sciences(all)
- Geochemistry and Petrology
- Energy(all)
- Energy Engineering and Power Technology
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24th European Meeting of Environmental and Engineering Geophysics. 2018. p. 1-5.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - S-Wave Imaging of Glacial Overdeepened Alpine Valleys
T2 - 24th European Meeting of Environmental and Engineering Geophysics
AU - Burschil, T.
AU - Buness, H.
AU - Tanner, D. C.
AU - Gabriel, G.
N1 - Funding Information: The project was funded by German Research Foundation DFG, grants KR2073/3-1, GA749/5-1, BU2467/1-2. We acknowledge the Geophysical Instrument Pool Potsdam for providing seismic equipment, grant GIPP201623. We thank our colleagues from Geological Surveys Baden-Württemberg and Austria, BOKU Vienna, Baubezirksamt Lienz, and GWU for support and advice.
PY - 2018/9/9
Y1 - 2018/9/9
N2 - S-wave seismic imaging complements the application of P-waves with benefits, e.g., in resolution and petrophysical parameters. However S-wave imaging strongly depends on subsurface conditions. We investigate two overdeepened Alpine basins with P-wave and S-wave seismic methods using single-component and multi-components: (1) The Tannwald basin, located in the Alpine foreland, and (2) the inner-alpine Lienz Basin. These basins have a 3-D shape and a spatially-varying internal structure that constitute promising study areas. Here, we present two profiles of S-wave seismic reflection imaging using 6-components, i.e. 3-C geophones and a horizontal vibrator sources exciting in two directions. The interpretation of coincident P-wave profiles benchmark the S-wave data. The seismic S-wave sections show most geological structures on the components that have same source-receiver orientation and, thus, corresponds to the SV- and SH-domains. We are able to detect S-wave reflections and diffractions of the basin base down to 600 m depth (2 s TWT). Reflectivity on the other (mixed) components indicate a large amount of wave conversion. The application of S-waves increases the resolution and is able to improve seismic imaging in these environments.
AB - S-wave seismic imaging complements the application of P-waves with benefits, e.g., in resolution and petrophysical parameters. However S-wave imaging strongly depends on subsurface conditions. We investigate two overdeepened Alpine basins with P-wave and S-wave seismic methods using single-component and multi-components: (1) The Tannwald basin, located in the Alpine foreland, and (2) the inner-alpine Lienz Basin. These basins have a 3-D shape and a spatially-varying internal structure that constitute promising study areas. Here, we present two profiles of S-wave seismic reflection imaging using 6-components, i.e. 3-C geophones and a horizontal vibrator sources exciting in two directions. The interpretation of coincident P-wave profiles benchmark the S-wave data. The seismic S-wave sections show most geological structures on the components that have same source-receiver orientation and, thus, corresponds to the SV- and SH-domains. We are able to detect S-wave reflections and diffractions of the basin base down to 600 m depth (2 s TWT). Reflectivity on the other (mixed) components indicate a large amount of wave conversion. The application of S-waves increases the resolution and is able to improve seismic imaging in these environments.
UR - http://www.scopus.com/inward/record.url?scp=85084629831&partnerID=8YFLogxK
U2 - 10.3997/2214-4609.201802537
DO - 10.3997/2214-4609.201802537
M3 - Conference contribution
AN - SCOPUS:85084629831
SP - 1
EP - 5
BT - 24th European Meeting of Environmental and Engineering Geophysics
Y2 - 9 September 2018 through 12 September 2018
ER -