[HTML][HTML] Sparse 3D reflection seismic survey for deep-targeting iron oxide deposits and their host rocks, Ludvika Mines, Sweden

A Malehmir, M Markovic, P Marsden, A Gil, S Buske… - Solid Earth, 2021 - se.copernicus.org
Many metallic mineral deposits have sufficient physical property contrasts, particularly
density, to be detectable using seismic methods. These deposits are sometimes significant …

Sparse magnetic vector inversion in spherical coordinates

D Fournier, LJ Heagy, DW Oldenburg - Geophysics, 2020 - pubs.geoscienceworld.org
Magnetic vector inversion (MVI) has received considerable attention over recent years for
processing magnetic field data that are affected by remanent magnetization. However, the …

[HTML][HTML] Underground vertical seismic profiling with conventional and fiber-optic systems for exploration in the Kylylahti Polymetallic Mine, Eastern Finland

M Riedel, C Cosma, N Enescu, E Koivisto… - Minerals, 2018 - mdpi.com
Seismic reflection methods have been used for the exploration of mineral resources for
several decades. However, despite their unmatched spatial resolution and depth …

Sparse 3D seismic imaging in the Kylylahti mine area, Eastern Finland: Comparison of time versus depth approach

B Singh, M Malinowski, F Hloušek, E Koivisto… - Minerals, 2019 - mdpi.com
A 10.5 km2 3D seismic survey was acquired over the Kylylahti mine area (Outokumpu
mineral district, eastern Finland) as a part of the COGITO-MIN (COst-effective Geophysical …

Innovative seismic imaging of volcanogenic massive sulfide deposits, Neves-Corvo, Portugal—Part 2: Surface array

GA Donoso, A Malehmir, B Brodic, N Pacheco… - Geophysics, 2021 - library.seg.org
Seismic methods are an affordable and effective way of studying the subsurface for mineral
exploration. With the goal of testing new technologies for mineral exploration in highly …

[HTML][HTML] 3D high-resolution seismic imaging of the iron oxide deposits in Ludvika (Sweden) using full-waveform inversion and reverse time migration

B Singh, M Malinowski, A Górszczyk, A Malehmir… - Solid Earth, 2022 - se.copernicus.org
A sparse 3D seismic survey was acquired over the Blötberget iron oxide deposits of the
Ludvika Mines in south-central Sweden. The main aim of the survey was to delineate the …

Geochemical characterisation of rock hydration processes using t-SNE

T Horrocks, EJ Holden, D Wedge, C Wijns… - Computers & …, 2019 - Elsevier
Dimensionality reduction provides a simple, two-dimensional representation of multi-
element geochemical assays, which facilitates visualisation of complex data and enhances …

Cross-profile seismic data acquisition, imaging, and modeling of iron-oxide deposits: A case study from Blötberget, south-central Sweden

G Maries, A Malehmir, P Marsden - Geophysics, 2020 - pubs.geoscienceworld.org
Two 2D reflection seismic profiles were acquired in Blötberget, south-central Sweden, for
deep targeting and delineation of sheet-like iron-oxide deposits, known to dip toward the …

Model-based probabilistic inversion using magnetic data: A case study on the Kevitsa deposit

N Güdük, M De La Varga, J Kaukolinna, F Wellmann - Geosciences, 2021 - mdpi.com
Structural geological models are widely used to represent relevant geological interfaces and
property distributions in the subsurface. Considering the inherent uncertainty of these …

Whole-rock and mineral compositional constraints on the magmatic evolution of the Ni-Cu-(PGE) sulfide ore-bearing Kevitsa intrusion, northern Finland

K Luolavirta, E Hanski, W Maier, F Santaguida - Lithos, 2018 - Elsevier
Abstract The~ 2.06 Ga mafic-ultramafic Kevitsa intrusion is located in the Central Lapland
greenstone belt. The lower ultramafic part of the intrusion hosts a large disseminated Ni-Cu …