Results 1 to 10 of about 5,856 (171)

Application of Borehole Geophysical Prospecting Method in Pile Foundation Detection of Existing Buildings

open access: yesJournal of Physics: Conference Series, 2023
Abstract It is particularly important to find out the pile foundation of existing buildings for building safety protection and engineering construction safety during the development and utilization of urban underground space. As a non-destructive, efficient and economic method, the borehole geophysical techniques such as magnetic ...
Jianli Wang, Dongmei Hou, Ming Huang
exaly   +2 more sources

Technical advances and research directions of borehole geophysical prospecting for coal mines

open access: yesMeitian dizhi yu kantan
BackgroundHigh-precision and long-distance exploration of geological conditions is required for coal extraction and disaster prevention in coal mines. However, traditional drilling and geophysical prospecting methods face technical bottlenecks such as ...
Jianyuan CHENG   +5 more
doaj   +2 more sources

Geophysical Prospecting for Geothermal Resources in the South of the Duero Basin (Spain)

open access: yesEnergies, 2020
The geothermal resources in Spain have been a source of deep research in recent years and are, in general, well-defined. However, there are some areas where the records from the National Institute for Geology and Mining show thermal activity from ...
Ignacio Martin Nieto   +2 more
exaly   +3 more sources

Application of Resistivity and Seismic Refraction Tomography for Landslide Stability Assessment in Vallcebre, Spanish Pyrenees

open access: yesRemote Sensing, 2022
Geophysical surveys are a noninvasive reliable tool to improve geological models without requiring extensive in situ borehole campaigns. The usage of seismic refraction tomography (SRT), electrical resistivity tomography (ERT) and borehole data for ...
Mahjoub Himi   +9 more
doaj   +1 more source

Research and application of seismic porosity inversion method for carbonate reservoir based on Gassmann’s equation

open access: yesOpen Geosciences, 2021
Carbonate rocks frequently exhibit less predictable seismic attribute–porosity relationships because of complex and heterogeneous pore geometry. Pore geometry plays an important role in carbonate reservoir interpretation, as it influences acoustic and ...
Liu Kaiyuan   +5 more
doaj   +1 more source

Long-Distance Crosswell EM Logging of Copper Ore Using Borehole-Surface Current Injection in Slim Holes

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Crosswell electromagnetic (EM) methods are widely used in subsurface geophysical prospecting because they can achieve more effective long-distance detection than single-well methods. However, a large-diameter borehole is required to increase the magnetic
Jingxin Dang   +8 more
doaj   +1 more source

Combining Ground Penetrating Radar and Frequency Domain Electromagnetic Surveys to Characterize the Structure of the Calderone Glacieret (Gran Sasso d’Italia, Italy)

open access: yesRemote Sensing, 2023
Ice is a rich reservoir of past climate information, and the well-documented increasing rate of glacier retreat represents a great loss for paleoclimate studies. In this framework, the Ice Memory project aims to extract and analyze ice cores from glacier
Mirko Pavoni   +5 more
doaj   +1 more source

Identification of magnetic anomalies based on ground magnetic data analysis using multifractal modelling: a case study in Qoja-Kandi, East Azerbaijan Province, Iran [PDF]

open access: yesNonlinear Processes in Geophysics, 2015
Ground magnetic anomaly separation using the reduction-to-the-pole (RTP) technique and the fractal concentration–area (C–A) method has been applied to the Qoja-Kandi prospecting area in northwestern Iran.
E. Mansouri   +2 more
doaj   +1 more source

Application of geophysical research of wells in determining the qualitative characteristics of coals and physico-mechanical properties of containing rocks

open access: yesМінеральні ресурси України, 2020
Geophysical exploration wells during the exploration of coal deposits solve many geological problems. Among them: the lithological section subdivision, allocation of coal seams, the definition of the depth of their occurrence and the angles of incidence ...
I. V. Vasileva
doaj   +1 more source

Physical properties of rocks from borehole TJ71305 and geophysical outline of the Tjårrojåkka Cu-prospect, northern Sweden

open access: yesOre Geology Reviews, 2007
Abstract In the last decades Fe-oxide Cu–Au (IOCG) deposits attracted the interest of exploration geologists and geophysicists. General geophysical descriptions of IOCG deposits have been published in the recent past, but there is still a lack of detailed geophysical investigations.
Sandrin, Alessandro, Elming, Sten-Åke
openaire   +1 more source

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