Results 21 to 30 of about 7,432 (216)

Delineation of structural lineaments of Southeast Nigeria using high resolution aeromagnetic data

Open Geosciences, 2022
Structural lineaments of Southeast Nigeria were delineated using high-resolution aeromagnetic data. Advanced methods such as enhanced horizontal gradient amplitude (EHGA) involving a 3D model and tilt depth method (TDM) were used in this study.
Eldosouky Ahmed M., Ekwok Stephen E., Akpan Anthony E., Achadu Ogiji-Idaga M., Pham Luan Thanh, Abdelrahman Kamal, Gómez-Ortiz David, Alarifi Saad S.   +7 more
doaj   +1 more source

Comprehensive analysis of magnetic and gravity data based on volumetric gravity-magnetic modeling along the Geotraverse in the Shu-Sarysu sedimentary basin

Вісник Київського національного університету імені Тараса Шевченка. Серія Геологія, 2023
The purpose of the studies presented in the article is to obtain the information of the deep structures along the Shu-Sarysu geotraverse, to determine the regularities in the distribution of mineral deposits and predictive assessment of the research ...
Aigerim Tleubergenova, Gulzada Umirova, Aliya Maussymbayeva, Vasiliy Portnov   +3 more
doaj   +1 more source

Inland extent of the Weddell Sea Rift imaged by new aerogeophysical data [PDF]

, 2013
The Weddell Sea Rift was a major focus for Jurassic extension and magmatism during the early stages of Gondwana break-up and underlies the Weddell Sea Embayment, which separates East Antarctica from a collage of crustal blocks in West Antarctica.
Corr, Hugh F.J., Rippin, David M., Le Brocq, Anne M., Bingham, Robert George, le Brocq, Anne, Ross, Neil, Jordan, Tom A., Bingham, Rob G., Siegert, Martin J., Ferraccioli, Fausto, Leat, Philip T.   +10 more
core   +1 more source

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 ...
Ravat, D., Pilkington, M., Purucker, M., Whaler, K.; id_orcid, Sabaka, T.   +4 more
core   +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

The Malawi Active Fault Database: An Onshore‐Offshore Database for Regional Assessment of Seismic Hazard and Tectonic Evolution

Geochemistry, Geophysics, Geosystems, 2022
We present the Malawi Active Fault Database (MAFD), an open‐access (https://doi.org/10.5281/zenodo.5507190) geospatial database of 113 fault traces in Malawi and neighboring Tanzania and Mozambique.
Jack N. Williams, Luke N. J. Wedmore, Christopher A. Scholz, Folarin Kolawole, Lachlan J. M. Wright, Donna J. Shillington, Åke Fagereng, Juliet Biggs, Hassan Mdala, Zuze Dulanya, Felix Mphepo, Patrick R. N. Chindandali, Maximilian J. Werner   +12 more
doaj   +1 more source

Magnetic Anomalies of the Tyrrhenian Sea Revisited: A Processing Workflow for Enhancing the Resolution of Aeromagnetic Data

Geosciences, 2022
We propose a processing workflow to enhance the information content of aeromagnetic data. Our workflow is based on the downward continuation and subsequent L-transform of magnetic data.
Giovanni Florio, Salvatore Passaro, Giovanni de Alteriis, Federico Cella   +3 more
doaj   +1 more source

Aeromagnetic-Imaged Basement Fault Structure of the Eastern Tarim Basin and Its Tectonic Implication

Frontiers in Earth Science, 2022
The property of the magnetic basement and the faults in the basement is significant for structural evolution, the Phanerozoic deposition, and oil resource exploration of the Tarim Basin. Based on the newly acquired aeromagnetic and industry seismic data,
Xingtao Kuang, Xiaoying Zhu, Fangxin Ning, Wei Li, Qifang Zheng, Bing Li, Daoqing Zhou   +6 more
doaj   +1 more source

INVESTIGATION OF SUBSURFACE STRUCTURES WITHIN PARTS OF NIGER DELTA, NIGERIA, VIA AEROMAGNETIC DATA [PDF]

Geological Behavior, 2020
Geophysical study involving aeromagnetic method was carried out to investigate parts of Niger Delta in Nigeria, aimed at investigating the cause and nature of anomalous bodies within the study area.
Ekpa, Moses M. M, Ibuot, Johnson C, Okeke, Francisca N, Obiora, Daniel N   +3 more
doaj   +1 more source

Aeromagnetic Minnesota

Eos, Transactions American Geophysical Union, 1990
The Precambrian terranes of Minnesota are revealed in a new shaded relief image (cover) made using high‐resolution aeromagnetic data. The image dramatically portrays geologic relationships (Figure 1) that are almost completely concealed by glacial drift.In southwestern Minnesota, a complex magnetic signature characterizes the highgrade metamorphic ...
Val W. Chandler, David L. Southwick
openaire   +1 more source