SIT4ME:Multi-method seismic imaging of the Sotiel-Elvira massive sulphide orebody (Iberian Pyrite Belt, SW-Iberia)
| Autor: | Alcalde, Juan, Carbonell, Ramón, Martínez, Y., Martí, David, Ayarza, P., Tornos, F., Marzán, Ignacio, Ruiz Fernández, Mario, Malehmir, A., Gil, Alba, Buske, S., Orlowsky, D. |
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| Přispěvatelé: | European Institute of Innovation and Technology |
| Rok vydání: | 2019 |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| Popis: | 16th SAGA Biennial Conference & Exhibition 2019 in Durban, 6-9 october 2019 The SIT4ME project is aimed to develop a cost-effective seismic imaging workflow for mining exploration. This workflow involves the use of novel techniques (such as noise interferometry) and/or alternative seismic data acquisition designs that are economically more affordable and with enough resolution that can be efficiently used for mineral exploration targets (e.g. 3D techniques, tomography, pre-stack migration, focusing of back scattered energy). A unique seismic data acquisition experiment was carried out centred in the Sotiel-Elvira area. The research site is part of a massive sulphide deposit within the Iberian Pyrite Belt (SW-Iberia). The area is under assessment for potential future exploitation. A multi-seismic data acquisition experiment was carried out in Autumn 2018. Over 700 seismic digital instruments were deployed in a pseudo-3D grid to record natural and control source seismic signals in order to image and characterise the subsurface. The 2 and 3 component instruments recorded wide azimuth and, relatively, long offset data. A Vibroseis source was used for the control source component of the experiment. The array of receivers (deployed within a grid 10x10m) recorded over 900 vibration points. The receivers also recorded environmental seismic noise along the 13 days of duration of the survey. Novel or unconventional methods such as: seismic tomography, noise interferometry and/or, pre-stack migration of scattered signals will be tested and, matched against the high-resolution more conventional seismic reflection imaging to assess their potential for mineral exploration. The combination of control and natural source, multi-component, multi-scale and multi-resolution seismic methods result in a complex and unique data-set that will be integrated to obtain a robust model of the subsurface. The SIT4ME project is funded by EIT-RawMaterials(17024) |
| Databáze: | OpenAIRE |
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