Results 41 to 50 of about 5,856 (171)

Integrated geophysical and geological analysis for peripheral exploration of Makeng-type Fe-polymetallic deposits: a case study from the Dapai Fe-polymetallic deposit, SE China

Frontiers in Earth Science
The Makeng-type Fe–polymetallic deposits in the southwestern Fujian constitute one of the most economically significant iron-polymetallic metallogenic belts of southeastern China.
Jiaxiu Hu, Yuan Yuan, Shaojiang Wu, Xinming Zhang, Bojie Hu, Bojie Hu   +5 more
doaj   +1 more source

Input Selection in Conventional Supervised Machine Learning in Geophysical‐Geological Mapping Applications: Improving Analytical Transparency and Model Parsimony

Earth and Space Science, Volume 13, Issue 5, May 2026.
Abstract When conventional supervised machine learning (ML), including decision trees, support vector machines (SVMs), and k‐nearest neighbors (KNN), is applied to geological problems involving complex data sets, it is necessary to select a subset of raw or pre‐processed data types that will be used as input to the ML model.
Limin Xu, Eleanor C. R. Green, Leonardo Feltrin   +2 more
wiley   +1 more source

Geophysical investigation of the Pb-Zn deposit of Lontzen-Poppelsberg, Belgium [PDF]

, 2018
The drillhole information from the Lontzen-Poppelsberg site has demonstrated three orebodies and has allowed the estimation of the extension of the lodes, their dip, and the location at the ground surface.
Chouteau, Michel, Dumont, Gaël, Evrard, Maxime, Francis, Olivier, Hermans, Thomas, Nguyen, Frédéric, Pirard, Eric   +6 more
core   +5 more sources

Key technologies of borehole comprehensive geophysical prospecting for advanced detection in directional long drilling of rapid excavation working face

Meitan kexue jishu
The efficient and intelligent production in coal mining necessitates more precise detection of hidden underground disaster-causing factors. Rapid excavation faces challenges in the accuracy and efficiency of detecting coal-rock interfaces, geological ...
Ping LI, Rong WEI, Tao FAN, Rui ZHAO, Bici JIANG, Xiaochao TIAN   +5 more
doaj   +1 more source

Radiolysis and Fe‐Biotite Alteration: Questioning the Origin of H2‐Bearing Fluid Inclusions in the Yorke Peninsula Granites, South Australia

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract Multiple drillings in the Yorke Peninsula, South Australia, recently confirmed the presence of natural hydrogen (H2) in shallow sedimentary units. While radiolysis and Fe‐oxidation in the basement are potential generation mechanisms, their respective contributions remain unconstrained.
Ugo Geymond, Dan Lévy, Julien Bourdet, Isabelle Martinez, Olivier Sissmann, Sidonie Revillon, Rayanne Gormit, Sylvain Bernard, Pierre‐Henri Blard, David Bekaert, Jimmy Daynac, Stephan Borensztajn, Se Gong, Clément Herviou, Emanuelle Frery, Isabelle Moretti   +15 more
wiley   +1 more source

Geophysical Analysis of Basement Terrain Groundwater Using Vertical Electrical Sounding: A Case Study of Parts of Abuja North Central Nigeria [PDF]

, 2015
The successful exploitation of groundwater requires a proper understanding of the hydrogeological characteristics of the sub-surface aquifers found within the basement complex.
Ejike, James Ebele, Omeje, Maxwell, Ugwuoke, P.E   +2 more
core   +3 more sources

Detection Method of Borehole Surrounding Rock Structure Based on Directional Acoustic Scanning

工程科学与技术, 2020
In the construction of infrastructures such as the large-scale water conservancy, hydropower, energy and transportation, it is important to find out the bad geological characteristics in rock mass structure to ensure the smooth construction of the ...
Jinchao WANG, Chuanying WANG, Sheng HU
doaj  

Magnetotelluric Exploration of Zn Pb Mineralization in Stonepark, Irish Midlands

Geophysical Prospecting, Volume 74, Issue 4, May 2026.
ABSTRACT To meet the increasing demand for raw materials and to foster the energy transition, advances in exploration techniques are required that extend capabilities to deeper and/or more densely populated areas while having a low environmental and societal impact.
K. Tietze, A. Platz, O. Ritter, U. Weckmann, M. Holdstock, P. Rieger, V. Susin, A. Melo, K. Torremans, D. Kiyan   +9 more
wiley   +1 more source

Velocity estimation in GPR data based on diffraction analysis: Methodology and application to Antarctic firn

Near Surface Geophysics, Volume 24, Issue 2, Page 170-186, April 2026.
Abstract This study presents a methodological framework for estimating electromagnetic wave velocities in ground‐penetrating radar (GPR) data based exclusively on the analysis of diffractions. The approach integrates diffraction separation using the plane wave destruction algorithm and subsequent velocity refinement through the residual diffraction ...
Ian E. Vogado, José Jadsom S. Figueiredo, Jandyr M. Travassos, Saulo S. Martins   +3 more
wiley   +1 more source

Update Heat Flow Density Map for Portugal [PDF]

, 2010
New thermal conductivity, heat production and temperature data obtained in Portugal were used to produce a new heat flow density map. Heat flow density values in Portugal vary between 42 and 115 mW/m2 and allow the extrapolation of temperatures to depths
Correia, Antonio, Ramalho, Elsa Cristina
core