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Open research questions in Geophysical and Geoelectrical Methods

61 unresolved questions extracted from the limitations and future-work sections of 201 Geophysical and Geoelectrical Methods papers in our library. Each links back to the study that raised it.

What the literature leaves open

  • Further testing of the proposed approach on various types of TEM data. Investigation of the effects of different sample rates and data record lengths on the results. Development of new methods for removing other types of noise from TEM data.

    Enhanced removal of very low frequency and low frequency radio noise from transient electromagnetic data with modeling and adaptive filtering · 2026 · DOI

  • The lack of effective methods for removing VLF and LF radio noise from TEM data. The need for a new approach that can handle discontinuous streams of TEM data. The importance of improving the signal-to-noise ratio of TEM data.

    Enhanced removal of very low frequency and low frequency radio noise from transient electromagnetic data with modeling and adaptive filtering · 2026 · DOI

  • The complex tectonic evolution of the Upper Benue Trough. The lack of direct subsurface information from drilling. The need for effective tools for regional subsurface mapping.

    Integrated Spectral Analysis and Source Parameter Imaging(SPI) of High-‎Resolution Aeromagnetic Data for BasementDepth Estimation in The Yola Arm, UpperBenue Trough, Nigeria · 2026 · DOI

  • The lack of subsurface data hinders a detailed understanding of the basement configuration and sedimentary architecture of the Yola Arm. Prior work has not fully characterized the basement morphology of the region.

    Integrated Spectral Analysis and Source Parameter Imaging(SPI) of High-‎Resolution Aeromagnetic Data for BasementDepth Estimation in The Yola Arm, UpperBenue Trough, Nigeria · 2026 · DOI

  • The study area is characterized by complex geological processes. The research requires the integration of multiple geophysical methods. The study's findings need to be interpreted in the context of the regional geological setting.

    REVEALING THE SUBSURFACE OF THE SOUTHWESTERN PART OF THE CAMPLONG ACTIVE FAULT, WEST TIMOR, INDONESIA BY APPLYING AUDIO-FREQUENCY MAGNETOTELLURIC DATA INVERSION · 2026 · DOI

  • Limited visibility and access in underground mining environments. Poor lighting conditions, which can affect photogrammetry's performance. Presence of dust and noise, which can reduce detail retention and affect accuracy.

    ASSESSING THE FEASIBILITY OF PHOTOGRAMMETRY FOR UNDERGROUND MINE MONITORING: A SIMULATION-BASED STUDY · 2026 · DOI

  • The challenge of identifying thin hydrocarbon-bearing LRLC sandstone layers. The limitation of conventional resistivity-based evaluation methods. The need for a methodology capable of learning depth-continuous relationships from multi-log data.

    From Seismic Source Localisation to Facies Classification: A Fourier Neural Operator Framework for Petrophysical Subsurface Characterisation · 2026 · DOI

  • Groundwater contamination from leachate migration. Limited understanding of leachate contamination and its impact on groundwater quality. Need for effective waste management and groundwater quality monitoring.

    Geophysical and Physicochemical Investigation of Leachate Plume Distribution and Its Impact on Groundwater Resources in Some Parts of Nasarawa State · 2026 · DOI

  • Ambiguity in HVSR responses in structurally complex volcanic environments. Limited understanding of subsurface structures and fluid migration pathways. Difficulty in integrating multiple geophysical methods to constrain subsurface layering.

    Integrated HVSR Microtremor and Electrical Resistivity Analysis for Identifying Shallow Fluid Migration Pathways in Sangubanyu, Central Java, Indonesia · 2026 · DOI

  • the depletion of shallow resources, - the existence of a thin variable Quaternary overburden, - the need for innovative measurement systems

    Time domain electromagnetic survey in deep mine galleries for mineral exploration · 2026 · DOI

  • 361) between regolith resistivity and aquifer potential, suggesting that resistivity alone is insufficient predictor of groundwater yield.

    PATTERN OF ELECTRICAL RESISTIVITY IN REGOLITH AQUIFER AND THEIR IMPLICATION FOR GROUNDWATER MANAGEMENT IN ILORIN METROPOLIS, NIGERIA · 2026 · DOI

  • It is recommended that borehole drilling be preferentially located around VES 3 and VES 1, targeting depths between 28 m and 35 m to ensure penetration into the fractured basement zone. Future investigations should integrate geophysical methods with hydrogeological and pumping test data to further validate aquifer productivity and sustainable yield. REFERENCES Adamu, A. A., M. O., & Adepelumi, A. A. (2021).

    <b>Integrated Hydrogeophysical Characterization and Quantitative Groundwater Potential Modelling Using Vertical Electrical Sounding in a Basement Complex Terrain: Gaba Community, Abuja, Nigeria</b> · 2026 · DOI

  • the study is limited to the development of a TDEM exploration strategy from deep mining galleries, - the simulations were carried out with a specific loop dimension and current

    Time domain electromagnetic survey in deep mine galleries for mineral exploration · 2026 · DOI

  • Further studies can be conducted to investigate the seismic hazard in other regions of Nigeria. The study's methodology can be applied to other areas with similar seismic activity. Future research can focus on the application of the study's findings to seismic hazard assessment and mitigation strategies.

    Identification of Causative Factors of Seismotectonic Activities in Kwoi and Mpape Using Aeromagnetic Data · 2026 · DOI

  • The study identifies a gap in the understanding of seismic events in Nigeria. The study aims to fill this gap by investigating the subsurface structures of seismotectonic activities.

    Identification of Causative Factors of Seismotectonic Activities in Kwoi and Mpape Using Aeromagnetic Data · 2026 · DOI

  • Further studies can apply the integration strategy to other mineral exploration projects. The use of other geophysical and geochemical techniques, such as induced polarization and geochemical sampling, can be explored.

    Integrated geophysical, mineralogical, and geochemical investigation of gold and associated hydrothermal minerals in the Um Balad Area, Eastern Desert, Egypt · 2026 · DOI

  • Gold exploration in structurally complex Precambrian terranes remains challenging due to the heterogeneous distribution of hydrothermal alteration zones. The integration of geophysical, mineralogical, and geochemical datasets is limited in previous studies.

    Integrated geophysical, mineralogical, and geochemical investigation of gold and associated hydrothermal minerals in the Um Balad Area, Eastern Desert, Egypt · 2026 · DOI

  • Soil moisture strongly affects resistivity, which may influence observed resistivity patterns. The measurements were conducted in October, when natural variations in moisture may be present. Further investigation may be necessary to confirm the overall quality of the data.

    Robust automated processing of continuous electrical resistivity measurements for soil texture mapping in support of optimized precision farming · 2026 · DOI

  • There is a lack of understanding of the chemistry underlying the creation and characteristics of ancient iron materials. There is a need to provide insights into iron-based materials from ancient India.

    The cannons at Dindigul Fort exemplify a remarkable accomplishment in the field of Indian Metallurgy-Exempt from corrosion · 2026 · DOI

  • The study only investigates the southwestern part of the Camplong active fault. The research uses a limited number of AMT observation points (15 points). The study does not provide a comprehensive analysis of the entire Camplong active fault.

    REVEALING THE SUBSURFACE OF THE SOUTHWESTERN PART OF THE CAMPLONG ACTIVE FAULT, WEST TIMOR, INDONESIA BY APPLYING AUDIO-FREQUENCY MAGNETOTELLURIC DATA INVERSION · 2026 · DOI

  • There is a lack of research on the application of photogrammetry in underground mining environments. Prior studies have focused on surface-based applications, leaving a gap in knowledge for underground scenarios. The study aims to address this gap by evaluating photogrammetry's feasibility for underground mine monitoring.

    ASSESSING THE FEASIBILITY OF PHOTOGRAMMETRY FOR UNDERGROUND MINE MONITORING: A SIMULATION-BASED STUDY · 2026 · DOI

  • The study identifies a gap in the current understanding of shale gas prospectivity in the Kutai Basin. Prior studies have not fully integrated seismic and MT geophysical techniques to improve the knowledge of shale gas prospectivity.

    UNVEILING SHALE GAS RESERVOIR STRUCTURES WITH SEISMIC AND MT DATA: WALDIM-BASED STUDY FROM EAST KALIMANTAN INDONESIA · 2026 · DOI

  • Prior research has focused on oil and gas geology, but geothermal exploration requires a different approach. The study aims to fill this gap by integrating gravity, magnetic, and heat-flow data.

    Modeling of the deep crystalline structure of the Precarpathian foredeep based on potential field data as a basis for predicting geothermal potential zones · 2026 · DOI

  • Conventional exploration techniques are often cost-prohibitive and spatially limited. There is a need for a low-cost and efficient approach for laterite exploration.

    Integrated geophysical and aerial photogrammetry approach for detailed delineation of iron ore mineralization in lateritic deposits · 2026 · DOI

  • Further application of the ground-tunnel frequency-domain electromagnetic method in different types of mines and geological settings. Investigation of the method's limitations and potential improvements.

    Ground-Tunnel Frequency-domain Electromagnetic Detection of Deeply-buried Metal Deposit: A Practice under Complex Production Noise · 2026 · DOI

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61 open questions have been extracted from the limitations and future-work passages of 201 Geophysical and Geoelectrical Methods papers in our library. Each one below links back to the study that raised it, so you can read the original claim in context.

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