Petrological control on chargeability with implications for induced polarization surveys

Cross, Blake; Kirkland, Christopher L.

doi:10.1016/j.jappgeo.2021.104308

Cited by 5 publications

(1 citation statement)

References 31 publications

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“…At study site 2, the interpreted sandy layer is somewhat deeper and is saturated with a depth ranging from 6.8 to 23.1 m. This corresponds to water level measurement in the areas with static hydraulic heads varying between 0.81 and 1.90 m, as shown in Appendix A-3 . Strong IP effects were also observed but with high resistivity potentially due to the significant influence of the surface material grain sizes, shape of particles, mineral conductivity, and the grain packing on chargeability [ 62 , 63 ]. Therefore, this layer can also retain water due to its significant clay content.…”

Section: Discussionmentioning

confidence: 99%

Using geophysics to guide the selection of suitable sites for establishing sustainable earthen fishponds in the Niger-Delta region of Nigeria

Emmanuel

Doro

Iserhien-Emekeme

et al. 2023

Heliyon

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Section: Discussionmentioning

confidence: 99%

Using geophysics to guide the selection of suitable sites for establishing sustainable earthen fishponds in the Niger-Delta region of Nigeria

Emmanuel

Doro

Iserhien-Emekeme

et al. 2023

Heliyon

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Evaluation of slake durability for carbonaceous rocks exposed to water soaking using electrical resistivity

Yang,

Zhang,

Luo

2023

Construction and Building Materials

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A study of time spectrum identification of induced polarization field based on Weibull distribution function

Meng

Gao

Niu³

et al. 2022

GEOPHYSICS

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Identification of time spectrum is one of the core issues of the time-domain induced polarization (IP) method, which can be considered as one of the bases for distinguishing various polarized rocks. Fitting the IP data based on the spectrum forward model and obtaining optimal solution of the model parameters is a key step in spectrum identification. However, the suitable forward model should consider the observation conditions such as the charging-time and the time-window. The time spectrum identification may be difficult to implement stably due to the lack of objective reference for the optimal solution. Our purpose is therefore to improve the forward model and implement spectrum identification for IP data. First, using the Weibull (WB) distribution function as the basis, a time spectrum forward model considering the charging-time and observation time-window is provided according to the typical measurement mode. Then, based on the WB spectrum model and Barzilai-Borwein gradient optimization, a method for solution of apparent spectral model parameters for spectrum identification is developed. Finally, this method is used to process the IP data from a mine where the anomalies related to ore bearing beds are identified based on the processing results. Results obtained demonstrate that the spectrum forward model based on the WB function is feasible in describing the IP data. The limited charging-time and a wide observed time-window should be considered to realize accurate simulations and description of the time-domain IP data. The essence of the time spectrum identification is to comprehensively reflect the time-varying state of whole time-channel through the spectral model parameters, wherein the decay field ratio of adjacent time-channel can be used as an objective reference. The parameters of the spectrum model characterizing the time-varying state are independent of polarization and resistivity, and thus can be directly used for identification of IP anomalies.

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Petrological control on chargeability with implications for induced polarization surveys

Cited by 5 publications

References 31 publications

Using geophysics to guide the selection of suitable sites for establishing sustainable earthen fishponds in the Niger-Delta region of Nigeria

Using geophysics to guide the selection of suitable sites for establishing sustainable earthen fishponds in the Niger-Delta region of Nigeria

Evaluation of slake durability for carbonaceous rocks exposed to water soaking using electrical resistivity

A study of time spectrum identification of induced polarization field based on Weibull distribution function

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