Development and Implementation of the Sparse Refraction method to exploration for Detrital Fe Deposits
| Autor: | Mike Haederle, Leon Mathews, Mike Enright |
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| Rok vydání: | 2016 |
| Předmět: |
Traverse
Offset (computer science) 020209 energy General Engineering 02 engineering and technology Exploration problem Geophysics 010502 geochemistry & geophysics Residual 01 natural sciences Basement (geology) Gravitational field 0202 electrical engineering electronic engineering information engineering Seismic refraction Geology 0105 earth and related environmental sciences Communication channel |
| Zdroj: | ASEG Extended Abstracts. 2016:1-7 |
| ISSN: | 2202-0586 |
| Popis: | The need for a more effective tool to explore for channel hosted detrital iron ore deposits under post mineral cover has led to the development of a novel minimalistic seismic refraction survey method we call ‘Sparse Refraction’, to map the depth of cover over basement. The survey configuration employs a single source and a single receiver, at a fixed offset. The source-receiver pair are moved progressively along a traverse, and at each station a first break reading is recorded. Gravity data is also acquired. Combining the two datasets allows the target response to be isolated from the gravitational effects of palaeotopography — we call this residual gravity field the ‘Excess Mass’. The method allows large areas to be screened quickly and effectively, with low environmental impact. This paper describes the journey from understanding the exploration problem, finding a solution, and the successful implementation of the new approach. |
| Databáze: | OpenAIRE |
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