dc.contributor.author |
Van Schoor, Michael
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dc.contributor.author |
Mare, LP
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dc.contributor.author |
Fourie, CJS
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dc.date.accessioned |
2009-09-29T11:29:53Z |
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dc.date.available |
2009-09-29T11:29:53Z |
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dc.date.issued |
2009-09 |
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dc.identifier.citation |
Van Schoor, M., Mare, .LP. and Fourie, CJS. 2009. Comparison between time-and frequency-domain induced polarisation parameters. 11th South African Geophysical Association (SAGA) Biennial Conference and Exhibition. Swaziland, 16-18 September 2009. pp 1-5 |
en |
dc.identifier.isbn |
9780620446020 |
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dc.identifier.uri |
http://hdl.handle.net/10204/3621
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dc.description |
11th South African Geophysical Association (SAGA) Biennial Conference and Exhibition. Swaziland, 16-18 September 2009 |
en |
dc.description.abstract |
Physical properties of rock samples from exploration or mining sites are often needed to assist in the planning of geophysical surveys or in the interpretation of geophysical results. For example, the output from a physical property study may be used in numerical model studies aimed at assessing the applicability or performance of a geophysical technique. Physical properties are also useful for constraining model parameters during processing and in the interpretation of field data. Electrical property data are often recorded in the time-domain, yielding resistivity and chargeability values; however, a frequency-domain, or even complex resistivity approach, may also be followed. The latter approach, for example, would produce resistivity magnitude and phase angle outputs. It is shown that both the commonly used standard time-domain chargeability parameters and the (single-frequency) complex resistivity phase angle parameter could produce misleading estimates of the polarisable nature of mineralised rocks and of the contrast between different rock types. It is further shown that a multi-frequency (spectral) approach can be used to avoid this pitfall; similarly, the calculation of different time-domain induced polarisation (IP) parameters, (using different definitions) may provide better insight into the polarisable nature of rock samples than a single, arbitrary chargeability value. |
en |
dc.language.iso |
en |
en |
dc.subject |
Induced polarisation parameters |
en |
dc.subject |
Spectral Induced polarisation |
en |
dc.subject |
Physical prorperty |
en |
dc.subject |
Cole-cole model |
en |
dc.subject |
SAGA |
en |
dc.subject |
South African Geophysical Association |
en |
dc.subject |
Rocks |
en |
dc.subject |
Mines |
en |
dc.title |
Comparison between time-and frequency-domain induced polarisation parameters |
en |
dc.type |
Conference Presentation |
en |
dc.identifier.apacitation |
Van Schoor, A. M., Mare, L., & Fourie, C. (2009). Comparison between time-and frequency-domain induced polarisation parameters. http://hdl.handle.net/10204/3621 |
en_ZA |
dc.identifier.chicagocitation |
Van Schoor, Abraham M, LP Mare, and CJS Fourie. "Comparison between time-and frequency-domain induced polarisation parameters." (2009): http://hdl.handle.net/10204/3621 |
en_ZA |
dc.identifier.vancouvercitation |
Van Schoor AM, Mare L, Fourie C, Comparison between time-and frequency-domain induced polarisation parameters; 2009. http://hdl.handle.net/10204/3621 . |
en_ZA |
dc.identifier.ris |
TY - Conference Presentation
AU - Van Schoor, Abraham M
AU - Mare, LP
AU - Fourie, CJS
AB - Physical properties of rock samples from exploration or mining sites are often needed to assist in the planning of geophysical surveys or in the interpretation of geophysical results. For example, the output from a physical property study may be used in numerical model studies aimed at assessing the applicability or performance of a geophysical technique. Physical properties are also useful for constraining model parameters during processing and in the interpretation of field data. Electrical property data are often recorded in the time-domain, yielding resistivity and chargeability values; however, a frequency-domain, or even complex resistivity approach, may also be followed. The latter approach, for example, would produce resistivity magnitude and phase angle outputs. It is shown that both the commonly used standard time-domain chargeability parameters and the (single-frequency) complex resistivity phase angle parameter could produce misleading estimates of the polarisable nature of mineralised rocks and of the contrast between different rock types. It is further shown that a multi-frequency (spectral) approach can be used to avoid this pitfall; similarly, the calculation of different time-domain induced polarisation (IP) parameters, (using different definitions) may provide better insight into the polarisable nature of rock samples than a single, arbitrary chargeability value.
DA - 2009-09
DB - ResearchSpace
DP - CSIR
KW - Induced polarisation parameters
KW - Spectral Induced polarisation
KW - Physical prorperty
KW - Cole-cole model
KW - SAGA
KW - South African Geophysical Association
KW - Rocks
KW - Mines
LK - https://researchspace.csir.co.za
PY - 2009
SM - 9780620446020
T1 - Comparison between time-and frequency-domain induced polarisation parameters
TI - Comparison between time-and frequency-domain induced polarisation parameters
UR - http://hdl.handle.net/10204/3621
ER - |
en_ZA |