A review of subsurface electrical conductivity anomalies in magnetotelluric imaging

W Lin, B Yang, B Han, X Hu - Sensors, 2023 - mdpi.com
After 70 years of development, magnetotelluric (MT), a remote sensing technique for
subsurface electrical resistivity imaging, has been widely applied in resource exploration …

[HTML][HTML] A study of faults in the Superior province of Ontario and Quebec using the random forest machine learning algorithm: Spatial relationship to gold mines

JR Harris, J Ayer, M Naghizadeh, R Smith, D Snyder… - Ore Geology …, 2023 - Elsevier
This paper uses the random forest (RF) algorithm to produce two maps of orogenic gold
prospectivity (MPM) across the entire Superior geologic province of Ontario and Quebec …

Relationship of the crustal structure, rheology, and tectonic dynamics beneath the Lhasa‐Gangdese terrane (southern Tibet) based on a 3‐D electrical model

S Jin, Y Sheng, MJ Comeau, M Becken… - Journal of …, 2022 - Wiley Online Library
The tectonic dynamics of the Lhasa‐Gangdese terrane, southern Tibet, are still unclear and
open questions persist regarding the structure, physical properties, and rheology of the …

Crustal conductivity footprint of the orogenic gold district in the Red Lake greenstone belt, western Superior craton, Canada

AQ Adetunji, G Launay, IJ Ferguson… - …, 2023 - pubs.geoscienceworld.org
A magnetotelluric (MT) study across the Red Lake greenstone belt of the western Superior
craton, Canada, images a 50-km-long north-dipping conductor (< 20 Ω· m) at 20–25 km …

Does a shallow magma reservoir exist in the Wudalianchi volcanic field? Constraints from magnetotelluric imaging

X Sun, Y Zhan, L Zhao, J Xu, Y Zhao… - Geophysical …, 2023 - Wiley Online Library
We obtain new images of the 3D resistivity structure of the Wudalianchi volcanic field (WVF).
No low‐resistivity structure is found beneath Laoheishan and Huoshaoshan volcanoes in …

Imaging the Whole‐Lithosphere Architecture of a Mineral System—Geophysical Signatures of the Sources and Pathways of Ore‐Forming Fluids

MJ Comeau, M Becken… - Geochemistry …, 2022 - Wiley Online Library
Mineral systems can be thought of as a combination of several critical elements, including
the whole‐lithosphere architecture, favorable geodynamic/tectonic events, and fertility …

Mapping a magnetic superstorm: March 1989 geoelectric hazards and impacts on United States power systems

JJ Love, GM Lucas, EJ Rigler, BS Murphy… - Space …, 2022 - Wiley Online Library
A study is made of the relations between geomagnetic and geoelectric field variation, Earth‐
surface impedance, and operational interference (“anomalies”) experienced on electric …

Application of multiscale magnetotelluric data to mineral exploration: an example from the east Tennant region, Northern Australia

W Jiang, J Duan, M Doublier, A Clark… - Geophysical Journal …, 2022 - academic.oup.com
The footprint of a mineral system is potentially detectable at a range of scales and
lithospheric depths, reflecting the size and distribution of its components. Magnetotellurics is …

Magmatic, hydrothermal and ore element transfer processes of the southeastern Archean Superior Province implied from electrical resistivity structure

EA Roots, GJ Hill, BM Frieman, PE Wannamaker… - Gondwana …, 2022 - Elsevier
Although magmatic-and metamorphic-derived fluids are widely recognized mineralizing
agents, the role of crustal architecture in defining source and sink zones within the middle to …

The implications of crustal architecture and transcrustal upflow zones on the metal endowment of a world-class mineral district

TRC Jørgensen, HL Gibson, EA Roots, R Vayavur… - Scientific Reports, 2022 - nature.com
Earth's mineral deposits show a non-uniform spatial distribution from the craton-scale, to the
scale of individual mineral districts. Although this pattern of differential metal endowment is …