Results 31 to 40 of about 15,320 (228)

Research on the application of time shifting aeromagnetic method in detecting coal mine burning areas

Gong-kuang zidonghua, 2023
The spontaneous combustion of coal seams leads to the formation of magnetic minerals in the overlying strata, exhibiting high magnetic anomaly features, providing a physical prerequisite for the magnetic method to detect the burning area.
YU Yongning, LI Xiongwei, SHI Lei, LIU Kaiyuan, GUO Jianlei, MA Guoqing   +5 more
doaj   +1 more source

A review on the analysis of aeromagnetic anomaly and its geological and tectonic applications

地球与行星物理论评, 2022
Aeromagnetic anomaly has the obvious advantages of wide coverage, low cost and high lateral resolution in geological structure research, and has been widely used in concealed magmatic rock and faults detection, tectonic characteristics (e.g.
Liguo Jiao, Yu Lei, Jiyao Tu, Junhao Zhao   +3 more
doaj   +1 more source

Geophysical Characterization of São José do Vale do Rio Preto to Identify Uranium Occurrences in Groundwater, Southeast of Brazil [PDF]

Anais da Academia Brasileira de Ciências
The deterioration of surface water quality in the hydrographic basins of the mountainous region of Rio de Janeiro, Brazil, has led to an increasing dependence on well drilling for access to groundwater.
JUAREZ LOURENÇO, FELIPE FRAIFELD, NICOLAS R. HISPAGNOL, GIOVANNI C. STAEL   +3 more
doaj   +1 more source

Hydrothermal Alteration on Composite Volcanoes: Mineralogy, Hyperspectral Imaging, and Aeromagnetic Study of Mt Ruapehu, New Zealand

Geochemistry, Geophysics, Geosystems, 2020
Prolonged volcanic activity can induce surface weathering and hydrothermal alteration that is a primary control on edifice instability, posing a complex hazard with its challenges to accurately forecast and mitigate.
Gabor Kereszturi, Lauren N. Schaefer, Craig Miller, Stuart Mead   +3 more
doaj   +1 more source

East Antarctica magnetically linked to its ancient neighbours in Gondwana

Scientific Reports, 2021
We present a new magnetic compilation for Central Gondwana conformed to a recent satellite magnetic model (LCS-1) with the help of an equivalent layer approach, resulting in consistent levels, corrections that have not previously been applied ...
Jörg Ebbing, Yixiati Dilixiati, Peter Haas, Fausto Ferraccioli, Stephanie Scheiber-Enslin   +4 more
doaj   +1 more source

Araguainha Dome, Brazil: A polygonal impact structure due to a complex pre‐impact regional structural framework

Meteoritics &Planetary Science, EarlyView.
Abstract We investigated the structural framework of the north–northwestern Paraná Basin in Brazil to test whether the pre‐impact structures in this region may have had any influence on the first‐order formation and morphostructure of the Araguainha impact structure (AIS).
Renato B. Bernardes, Wolf U. Reimold, Roger L. Gibson, Julia B. Curto Ma, Adolfo B. Silva, Natalia Hauser   +5 more
wiley   +1 more source

Detection of sub-surface fractures based on filtering, modeling, and interpreting aeromagnetic data in the Deng Deng – Garga Sarali area, Eastern Cameroon

Open Geosciences, 2022
The aeromagnetic anomalies existing in the Deng Deng – Garga Sarali region in Eastern Cameroon were filtered for a structural study of the region’s subsoil.
Yigui Lionel Cedric, Ndougsa-Mbarga Theophile, Meying Arsène, Owono-Amougou Olivier Ulrich-Igor   +3 more
doaj   +1 more source

Seismic imaging of the critical zone of dolerite dykes at Cap Fréhel in Brittany (France)

Near Surface Geophysics, Volume 24, Issue 3, Page 262-288, June 2026.
Abstract In June 2023, we measured ten near‐surface seismic profiles to image the critical zone of dolerite (diabase) dykes that cut the sandstone at Cap Fréhel in Brittany (France). Seismic ray tracing and inversion are used to determine the thickness of the regolith layer from first‐arrival P‐wave traveltimes.
M. Zillmer, F. Masson, H. Rutt, A.‐D. Schmitt, F. Chabaux   +4 more
wiley   +1 more source

Pre-Archaeological Investigation by Integrating Unmanned Aerial Vehicle Aeromagnetic Surveys and Soil Analyses

Drones, 2022
Magnetic surveys have been widely used in archaeological field investigations. However, conventional survey methods are often restricted by complicated field conditions and ambiguities in data interpretation. In this study, a novel magnetic survey system
Wei Cao, Hao Qing, Xing Xu, Chang Liu, Silin Chen, Yi Zhong, Jiabo Liu, Yuanjie Li, Xiaodong Jiang, Dalun Gao, Zhaoxia Jiang, Qingsong Liu   +11 more
doaj   +1 more source

An airborne geophysical survey of part of west Dyfed, South Wales, and some related ground surveys [PDF]

, 1986
A detailed airborne geophysical survey has been made of part of west Dyfed at a flying height of 75 m with magnetic, electromagnetic (VLF-EM) and radiometric equipment mounted in a helicopter.
Cave, R., Cornwell, J.D.
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