Výsledky vyhledávání - "Markku Montonen"

Why 3D seismic data are an asset for exploration and mine planning? Velocity tomography of weakness zones in the Kevitsa Ni-Cu-PGE mine, northern Finland

Autor: Ari Tryggvason, Pietari Skyttä, Markku Montonen, Chris Wijns, Teemu Lindqvist, Alireza Malehmir, Emilia Anna-Liisa Koivisto

Publikováno v: GEOPHYSICS. 83:B33-B46

Kevitsa is a disseminated Ni-Cu-PGE (platinum group elements) ore body in northern Finland, hosted by an extremely high-velocity ([Formula: see text]) ultramafic intrusion. It is currently being mined at a depth of approximately 100 m with open-pit m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d2ff63ffd9d800a506f01ddee5b2f225
https://doi.org/10.1190/geo2017-0225.1

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Data mining of petrophysical and lithogeochemical borehole data to elucidate the origin of seismic reflectivity within the Kevitsa Ni-Cu-PGE -bearing intrusion, northern Finland

Autor: Markku Montonen, Chris Wijns, Niina Marjut Junno, Emilia Anna-Liisa Koivisto, Ilmo Kukkonen, Alireza Malehmir

The Kevitsa mafic-ultramafic intrusion, located within the Central Lapland Greenstone Belt in northern Finland, hosts a large, disseminated Ni-Cu-PGE sulphide deposit. A three-dimensional seismic reflection survey was conducted over the Kevitsa intru

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ffe70c311b4379e6ad3310475d708810
http://hdl.handle.net/10138/310104

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SPM Effect in Glacial Till

Autor: Markku Montonen

Publikováno v: ASEG Extended Abstracts. 2015:1-4

SUMMARY The SPM effect is not traditionally associated with glacial tills. However, effects of viscous magnetization, i.e. superparamagnetism, are observed in many places in Northern Finland in high sensitivity and low frequency time domain ground EM

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::48c467bfe818453529501761a3f4c4ad
https://doi.org/10.1071/aseg2015ab230

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