A comparison between mise-à-la-masse anomalies obtained by pole-pole and pole-dipole electrode configurations

Eloranta, E.

doi:10.1016/0016-7142(85)90074-2

Cited by 16 publications

(8 citation statements)

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“…The amplitude of sharp negative peak on the up-dip side is greater and sharper than the amplitude of broadened positive peak on the down-dip side (Eloranta, 1985). Also the normal as well as gradient anomalies broaden for a buried line source.…”

Section: Discussionmentioning

confidence: 84%

“…The details of quantitative interpretation can be obtained in Mwenifumbo (1980), Eloranta (1985Eloranta ( , 1986 and Wang et al (1991). The details of quantitative interpretation can be obtained in Mwenifumbo (1980), Eloranta (1985Eloranta ( , 1986 and Wang et al (1991).…”

Section: Discussionmentioning

confidence: 99%

“…The details of quantitative interpretation can be obtained in Mwenifumbo (1980), Eloranta (1985Eloranta ( , 1986 and Wang et al (1991). Eloranta (1985) indicated that recording of mise-a-la-masse anomaly as potential is most reliable for interpretation. The development of a potential on the surface depends on the thickness and width of the fractured zone, its depth of burial, extent, dip, resistivity contrast with the surroundings and resistivity of the overburden.…”

Section: Discussionmentioning

confidence: 99%

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The mise-a-la-masse method

2015

Groundwater Geophysics in Hard Rock

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Section: Discussionmentioning

confidence: 84%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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The mise-a-la-masse method

2015

Groundwater Geophysics in Hard Rock

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“…Moreover, a literature search revealed that the pole-dipole form strategy had been applied very successfully in the past investigations of many mineral deposits [31,33,34]. For more details about using Pole-dipole array, you can see, for instance, [35][36][37][38][39][40]. The GPS-data of each electrode of the survey lines was measured by handheld Garmin GPS ± 5 m accuracy and ±10 m accuracy for the elevation, to consider a topographic effect on the inversion processes.…”

Section: Field Survey and Processingmentioning

confidence: 99%

Geoelectrical tomography data processing and interpretation for Pb-Zn-Ag mineral exploration in Nash Creek, Canada

et al. 2020

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The geoelectrical tomography survey was carried out to explore and characterize a (Zn-Pb-Ag) sulphide deposit in Nash Creek (NC), New Brunswick province, Canada. The exploration strategy has been conducted by the 2-D survey for a well-cut grid consisting of twelve surface lines (profiles) each around 2 km long, and 300 m apart, for the total area around 9.5 km2. The datasets (resistivity and induced polarization) were acquired using the Iris El-Rec Pro system with pole-dipole electrodes array spaced 50 m apart, and ten levels of data datum. The results of the 2-D inversion revealed that the underground resistivity and chargeability values in the exploration area have a range of (5 to 1300 Ωm) and (0-9.5 mV/V), respectively. The sulphide mineralization zones in the exploration area are characterized by moderate resistivity values (150-300 Ωm) and moderate to low chargeability values (>5.5 mV/V), with a depth of around (90140 m) from the surface. The 3-D visualization model clearly reveals that three main zones of sulphide mineralization are present in the exploration area. The predicted geological reserve of the sulphide ore in the exploration area was calculated. The inverted models revealed a good agreement with the existing geological features in the exploration area.

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“…potential quantities compensated for the current and array geometry in a homogeneous earth) have also been used to present mise-à-la-masse data (Jamtlid et al 1984;Eloranta 1985;Beasley and Ward 1986). Apparent resistivities (i.e.…”

Section: Introductionmentioning

confidence: 99%

Mise‐à‐la‐masse interpretation using a perfect conductor in a piecewise uniform earth

Furness

1999

Geophysical Prospecting

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A useful analysis of the mise‐à‐la‐masse problem can be made by considering a perfectly conducting orebody in a piecewise uniform conducting earth. While the use of a perfect conductor is clearly an idealization of the true geological conditions it provides several advantages for the present purpose. The electric field associated with the above model can be expressed in terms of a surface integral of the normal potential gradient over the boundary of the conductor, where the normal gradient satisfies a well‐posed Fredholm integral equation of the first kind. This integral equation formulation remains unchanged when the conductor is arbitrarily located in the conducting earth, including the important case when it crosses surfaces of conductivity discontinuity. Moreover, it is readily specialized to the important case of a thin, perfectly conductive lamina. Consideration of the boundary value problem relevant to a conductive body fed by a stationary current source suggests that under certain circumstances, equivalent mise‐à‐la‐masse responses will result from any perfect conductor confined by the equipotential surfaces of the original problem. This type of equivalence can only be reduced by extending the potential measurements into or on to the conductor itself. This ambiguity in the interpretation of mise‐à‐la‐masse surveys suggests a simple if approximate integral solution to the mise‐à‐la‐masse problem. The solution is suitable for modelling the responses of perfect conductors and could possibly be used as the basis of a direct inversion scheme for mise‐à‐la‐masse data.

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A comparison between mise-à-la-masse anomalies obtained by pole-pole and pole-dipole electrode configurations

Cited by 16 publications

References 1 publication

The mise-a-la-masse method

The mise-a-la-masse method

Geoelectrical tomography data processing and interpretation for Pb-Zn-Ag mineral exploration in Nash Creek, Canada

Mise‐à‐la‐masse interpretation using a perfect conductor in a piecewise uniform earth

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