Shallow electrical resistivity imaging of the Limón fault, Chagres River Watershed, Panama Canal

Mojica, Alexis; Pérez, Tatiana; Toral, Jaime; Miranda, Roberto J.; Franceschi, Pastora; Calderón, Carlos; Vergara, Fidedigna

doi:10.1016/j.jappgeo.2017.01.010

Cited by 15 publications

(9 citation statements)

References 18 publications

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“…error is usually used as a measure of the difference between the calculated and measured resistivity values (McClymonet et al, 2011;Mojica et al, 2017;Rizzo et al, 2004;Suski et al, 2010;Telford et al, 1990). The variation in calculated true resistivity, both laterally and vertically, across the length of the profile can be represented as a 2D high-resolution image.…”

Section: Ert Surveymentioning

confidence: 99%

“…The main advantages of the ERT methodology are that it a globally accepted and costeffective non-invasive geophysical method, and its efficacy in determining the geoelectrical changes within the subsurface is well demonstrated (Balakrishna et al, 2014;Caputo et al, 2003;Chambers et al, 2009;Chandra et al, 2016;Colella et al, 2004;Mojica et al, 2017;Rao et al, 2012;Rizzo et al, 2004;Zhou et al, 2000). ERT has several advantages over other geophysical methods due to its relative simplicity, efficiency, and robustness of the equipment and field data collection procedure (Balakrishna et al, 2014;Chambers et al, 2009;Kumar et al, 2016;Mojica et al, 2017), which makes it especially well suited in remote and poorly developed regions where logistical conditions are challenging (Suski et al, 2010).…”

Section: Ert Surveymentioning

confidence: 99%

“…used ERT to confirm the presence of a fault within Jurassic, Permian, Cretaceous, and Quaternary formations. An investigation conducted byMojica et al (2017) showed the successful determination of fault geometry within Tertiary basalt and Oligocene Tertiary sediments. Tejero used ERT to identify the unconformable fault between Basement metasediments and igneous rocks and the Cretaceous sedimentary rocks, in order to address the structure of the Guadiana Basin in Spain.…”

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confidence: 99%

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Hydrogeological characterisation of regional faults and dolerite dykes in the Precambrian Basement and Karoo Supergroup (Tete Province, Mozambique)

Minnaar

Dippenaar

2019

South African Journal of Geology

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Faults and dolerite dykes within Basement- and Karoo-aquifers in northern Mozambique may increase groundwater occurrence but may also be barriers to groundwater flow. Should observation boreholes drilled into regional and local faults as well as dykes show a response to aquifer testing, it would be deduced that these hydrogeological discontinuities are not barriers to groundwater flow. The approach adopted for this study included a sequential process involving data acquisition through a hydrogeological fieldwork programme consisting of geophysical surveys, borehole drilling, aquifer testing, and groundwater level monitoring. The Zambezi Border and geological contact faults were characterised by high variability in hydraulic properties. Aquifer testing resulted in drawdown in observation boreholes as well as a reduction in piezometric surface in the installed vibrating wire piezometers located in different aquifer units, indicating the Zambezi Border- and geological contact-faults were not barriers to groundwater flow. Not all the northwest-southeast trending dykes acted as barriers to groundwater flow, as there were discreet intervals with relatively high permeability present.

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Section: Ert Surveymentioning

confidence: 99%

Section: Ert Surveymentioning

confidence: 99%

mentioning

confidence: 99%

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Hydrogeological characterisation of regional faults and dolerite dykes in the Precambrian Basement and Karoo Supergroup (Tete Province, Mozambique)

Minnaar

Dippenaar

2019

South African Journal of Geology

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“…2D ERT has been found to be more efficient in various studies like hydrogeological study, ground water exploration, geotechnical site investigation, environmental assessment and archaeological site investigation (Abu-Zeid et al, 2004;Aristodemou & Thomas-Betts, 2000;Awang et al, 2016;Cassiani et al, 2006;Chambers et al, 2006;Dahlin & Zhou, 2004;Drahor et al, 2008;Lesparre et al, 2016;Loke & Lane Jr, 2004;Mansoor & Slater, 2007;Marsan et al, 2017;Martínez-Pagán et al, 2009;Metwaly & AlFouzan, 2013;Mojica et al, 2017;Stan et al, 2017;Yeh et al, 2002). Application of electrical resistivity imaging in realm of mineral exploration is also found to be efficient and effective (Beauvais et al, 1999;Cardimona, 2002;Chambers.…”

mentioning

confidence: 99%

“…Beresnev et al, 2002;Bharti et al, 2016;Chambers J. et al, 2013;Chambers J.E. et al, 2006;Dahlin & Zhou, 2004;Longo et al, 2014;Meju, 2002;Mojica et al, 2017;Rucker et al, 2012;Van Schoor, 2002).…”

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confidence: 99%

Recognition of boulder in granite deposit using integrated borehole and 2D electrical resistivity imaging for effective mine planning and development

Junaid¹,

Abdullah²,

Sa'Ari³

et al. 2019

BGSM

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Evaluations of a mineral resource are necessary for mineral rights, owners and investors alike. However, for resource evaluation the detail documentation of subsurface geological spatial distribution such as lateral and vertical extent of bedrock and topsoil, hydrogeological investigation and boulder characterisation is mandatory. Boulder is hard and crystalline compact rock block, which substantial presence in a deposit highly influence the drilling equipment selection. A traditional exploration technique particularly for granite resource evaluation is drilling. But even finite number of drilling sample fails in the accurate delineation of boulders because drilling is limited to small point and rock mass is heterogenous and thus immense portion of the deposit via drilling method remain discern. 2D electrical resistivity imaging (2D ERT) technique of the study area over an area of 3.5 km 2 was accomplished by six resistivity lines using a Schlumberger protocol with inner and outer electrode spacing of 5 m and 10 m respectively. Inverted resistivity images successfully identify the existence of boulders in the area of investigation in the topsoil region; characterized by high resistivity values more than 2400 Ω.m. Whereas, only one core log (BH3) out of three reported presence of boulders. Thus, the research study presented in this paper enables us to conclude that the combined application of borehole and ERT allows us to derive that 2D ERT enhances the resource evaluation efficiency and reduces the cost considerably for underlying subsurface geological characterization.

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Water-saturated zone recognition using integrated 2D electrical resistivity tomography, borehole, and aerial photogrammetry in granite deposit, Malaysia

et al. 2022

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Shallow electrical resistivity imaging of the Limón fault, Chagres River Watershed, Panama Canal

Cited by 15 publications

References 18 publications

Hydrogeological characterisation of regional faults and dolerite dykes in the Precambrian Basement and Karoo Supergroup (Tete Province, Mozambique)

Hydrogeological characterisation of regional faults and dolerite dykes in the Precambrian Basement and Karoo Supergroup (Tete Province, Mozambique)

Recognition of boulder in granite deposit using integrated borehole and 2D electrical resistivity imaging for effective mine planning and development

Water-saturated zone recognition using integrated 2D electrical resistivity tomography, borehole, and aerial photogrammetry in granite deposit, Malaysia

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