Results 1 to 10 of about 9,321 (201)

GEOPHYSICAL SURVEY FOR GROUNDWATER IN PART OF OBIO/AKPOR LOCAL GOVERNMENT AREA OF RIVERS STATE, NIGERIA [PDF]

open access: yesGeological Behavior, 2023
This research is aimed at carrying out geophysical survey for groundwater in parts of Obio/Akpo Local Government Area of Rivers State, Nigeria, using the Schlumberger electrode configuration of vertical electrical sounding (VES) technique.
Owabie, W. Highpriest, Amonieah
doaj   +1 more source

Integrated Geoelectric and Hydrochemical Methods to Evaluate Groundwater Pollution in Azikoro, Yenagoa, Bayelsa State, Nigeria [PDF]

open access: yesPhysics Access, 2022
This paper presents an investigation on the contamination potential of ground water using integrated geoelectric and hydro chemical methods within Azikoro, Yenagoa, Bayelsa state, Nigeria.
Bunonyo T Yemanai   +2 more
doaj   +1 more source

Archaeological Investigation and Hazard Assessment Using Magnetic, Ground-Penetrating Radar, and GPS Tools at Dahshour Area, Giza, Egypt

open access: yesFrontiers in Earth Science, 2021
An archeological study using magnetic and ground-penetrating radar methods has been performed at the Dahshour region (Giza, Egypt), where various covered structures have not been found because of the long coercion of the zone under the military ...
A. E. El Emam   +3 more
doaj   +1 more source

Delineating the source and mechanism of groundwater salinization in a semi-arid region of southeastern Iran using geophysical and hydrochemical approaches [PDF]

open access: yesمدل‌سازی و مدیریت آب و خاک, 2023
IntroductionGroundwater salinization is a major environmental problem, especially in arid and semi-arid regions of the world. Different natural processes and anthropogenic activities can cause groundwater salinity.
Mohammad Faryabi
doaj   +1 more source

Donbas geoelectrical structure

open access: yesGeophysical Journal, 2022
The Donbas was formed as the result of Late Devonian rifting of the East European craton. During the Carboniferous, the subsidence of the basin and sedimentation were at their maximum, and a 15-kilometer stratum of Carboniferous deposits formed in the Donbas. The total thickness of the deposits reaches more than 20 km. The next important event was
I.I. Rokityansky, A.V. Tereshyn
openaire   +4 more sources

Study on the geoelectric index (GEI): taking the geoelectric field observation in mainland China as an example

open access: yesGeomatics, Natural Hazards & Risk, 2023
This paper reports three methods of researching the geoelectric index (GEI) based on the ratio between the variation amplitude of geoelectric field on an index calculation day and that on a magnetically quiet day, and uses the three methods to process ...
Junsong Sun   +4 more
doaj   +1 more source

Geolectric field measurement, modelling and validation during geomagnetic storms in the UK

open access: yesJournal of Space Weather and Space Climate, 2021
Significant geoelectric fields are produced by the interaction of rapidly varying magnetic fields with the conductive Earth, particularly during intense geomagnetic activity.
Beggan Ciarán D.   +4 more
doaj   +1 more source

Characteristics and Sources of Intense Geoelectric Fields in the United States: Comparative Analysis of Multiple Geomagnetic Storms

open access: yesSpace Weather, 2022
Intense geoelectric fields during geomagnetic storms drive geomagnetically induced currents in power grids and other infrastructure, yet there are limited direct measurements of these storm‐time geoelectric fields.
Xueling Shi   +6 more
doaj   +1 more source

Identifikasi Gugus SiHx (x=1, 2 dan 3) pada Silikon Berpori dari Substrat Si (111) Tipe-P

open access: yesJurnal Fisika Flux, 2017
The study of identification of functional group SiHx (x=1, 2, 3) to typep Si (111) made by anodizatied silicon wafer in 0,3 ohm-cm hydrofluoric (HF) has been conducted.
I Nyoman Sudiana
doaj   +3 more sources

Range finding of Alfvén oscillations and direction finding of ion-cyclotron waves by using the ground-based ULF finder [PDF]

open access: yes, 1997
International audienceA new approach to the problem of direction and distance finding of magnetospheric ULF oscillations is described. It is based on additional information about the structure of geoelectromagnetic field at the Earth's surface which is ...
Guglielmi, A.   +4 more
core   +7 more sources

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