Results 51 to 60 of about 15,320 (228)

Compatibility of high-altitude aeromagnetic and satellite-altitude magnetic anomalies over Canada [PDF]

, 2002
Results from equivalent-source distributions derived jointly from high-altitude (average 4 km) aeromagnetic and Magsat-derived (average 400 km) magnetic anomalies over Canada indicate that long-wavelength components (500–2500 km) in these fields are ...
Pilkington, M., Purucker, M., Ravat, D., Sabaka, T., Whaler, K.   +4 more
core   +1 more source

Supervised Swin Transformer‐Based Predictive Lithological Mapping and Uncertainty Quantification Using Aeromagnetic and Gravity Data

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 2, April 2026.
Abstract Lithological mapping is essential for the exploration of critical minerals supporting energy transition and national defense. Although recent advancements have incorporated multi‐source data sets and leveraged machine learning and deep learning (DL) methods, lithological mapping continues to face significant challenges, such as data imbalance,
Liang Ding, Gilles Bellefleur, Olivier Boulanger, Phuong Vo   +3 more
wiley   +1 more source

Rethinking Collinearity in Self‐Organizing Maps: Evidence From Geophysical Data Classification

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 2, April 2026.
Abstract This study examines the impact of collinearity on unsupervised machine learning algorithms (UMLAs), specifically Self‐Organizing Maps (SOMs), for detecting lithological boundaries in geophysical data. Using a multi‐scale experimental framework that includes bivariate isotropic clusters, geologically complex Noddy simulations, and real‐world ...
Limin Xu, Leonardo Feltrin, Eleanor C. R. Green   +2 more
wiley   +1 more source

Geothermal Resource Assessment on Sumatra Island: Estimating Thermal Gradient and Heat Flow Based on Aeromagnetic Data via Curie Point Analysis

Journal of Applied Science and Engineering
Geothermal exploration on Sumatra Island is gaining momentum as Indonesia undergoes the shift to the use of sustainable energy resources. Exploration is nevertheless hindered by the limited deep boreholes and the tectonic and geological complexity of ...
Ahmad Ali Muckharom, Agus Setyawan, Ihya Qothrunnada Rahmani, Rina Dwi Indriana   +3 more
doaj   +1 more source

Mapping of Lineament Structures from Aeromagnetic and Landsat Data Over Ankpa Area of Lower Benue Trough, Nigeria

Open Physics, 2019
Structural analysis of aeromagnetic and Landsat data over Ankpa area, Benue state was carried out to delineate the basement topography, hydrocarbon potentials, groundwater availability and the structures that control basin formation.
Ikechukwu Boniface Ijeh, Maxwell Omeje, Faith Onyeujo Oluchi, Sunday Joel Emmanuel, Oladotun Adewoyin Olusegun, Charles Olawole Olukunle   +5 more
doaj   +1 more source

Eocene Tectonic Change in the South Pacific Caused Exhumation of the Transantarctic Mountains in Northern Victoria Land, Antarctica

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
Apatite fission‐track and (U‐Th)/He data indicate rapid exhumation of northern Victoria Land at 40–30 Ma, correlating with opening of Adare Trough at 43–28 Ma. Exhumation was greatest close to the Ross Sea, consistent with other regions of the Transantarctic Mountains.
Rupert Sutherland, Paul Fitzgerald, Nick Mortimer   +2 more
wiley   +1 more source

Enhancing Prospecting Target Prediction Precision: A Multi-Source Data Mining Approach in Gansu’s Beishan Area

Applied Sciences
The success of geological prospecting depends on the accuracy of target area prediction. Traditional qualitative research methods rooted in theoretical frameworks have shown significant limitations, especially in their inability to fully exploit the ...
Lihui Zhu, Runsheng Han, Yan Zhang, Hao Fu, Jianmin Luo, Yunzhi Luo   +5 more
doaj   +1 more source

Aeromagnetic and gravity

, 2007
Residual magnetic field: This image shows the colour-coded map of the residual magnetic field. The image has a pixel size of 42m. The area north of 65N consists of digitized data resulting from two surveys flown between 1966 and 1974. A flight-line spacing of 800 m and flight altitude of 305 m above ground were used in both cases.
M Pilkington, D Oneschuk
openaire   +1 more source

Inferring Cenozoic Cover Thickness and Bedrock Sedimentary Material in 3D From Geophysical Data Using Machine Learning Algorithms: A Case Study in the Lockington Region, Victoria, Australia

Earth and Space Science, Volume 13, Issue 3, March 2026.
Abstract This study presents a supervised machine learning approach to constructing a 3D geological model for the Lockington area in Victoria, Australia, by integrating borehole observations, geophysical surveys (magnetic, gravity, and radiometric), and elevation data.
Limin Xu, Eleanor C. R. Green, Mark A. McLean   +2 more
wiley   +1 more source

The SCEC Community Rheology Model for the Southern California Lithosphere: Geological Framework, Ductile Flow Laws, and Preliminary Implications

Earth and Space Science, Volume 13, Issue 3, March 2026.
Abstract The Southern California Earthquake Center (SCEC) Community Rheology Model (CRM) comprises a three‐dimensional geologic framework model (GFM) of southern California's lithosphere, and synthetic aggregate ductile flow laws applicable to each GFM rock type under low‐strain conditions. Given temperature, volatile content, pressure, and strain rate,
Elizabeth Hearn, Greg Hirth, Michael Oskin, Laurent Montesi, Whitney Behr, Mark Legg, Alex Morelan   +6 more
wiley   +1 more source