Approach of automatic 3D geological mapping: the case of the Kovdor phoscorite-carbonatite complex, NW Russia

Abstract We have developed an approach for automatic 3D geological mapping based on conversion of chemical composition of rocks to mineral composition by logical computation. It allows to calculate mineral composition based on bulk rock chemistry, interpolate the mineral composition in the same way...

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Autores principales:	A. O. Kalashnikov, G. Yu Ivanyuk, J. A. Mikhailova, V. A. Sokharev
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e1e00d0dc2a548a896f97e7d8a44e01a
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spelling	oai:doaj.org-article:e1e00d0dc2a548a896f97e7d8a44e01a2021-12-02T12:30:45ZApproach of automatic 3D geological mapping: the case of the Kovdor phoscorite-carbonatite complex, NW Russia10.1038/s41598-017-06972-92045-2322https://doaj.org/article/e1e00d0dc2a548a896f97e7d8a44e01a2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-06972-9https://doaj.org/toc/2045-2322Abstract We have developed an approach for automatic 3D geological mapping based on conversion of chemical composition of rocks to mineral composition by logical computation. It allows to calculate mineral composition based on bulk rock chemistry, interpolate the mineral composition in the same way as chemical composition, and, finally, build a 3D geological model. The approach was developed for the Kovdor phoscorite-carbonatite complex containing the Kovdor baddeleyite-apatite-magnetite deposit. We used 4 bulk rock chemistry analyses – Femagn, P2O5, CO2 and SiO2. We used four techniques for prediction of rock types – calculation of normative mineral compositions (norms), multiple regression, artificial neural network and developed by logical evaluation. The two latter became the best. As a result, we distinguished 14 types of phoscorites (forsterite-apatite-magnetite-carbonate rock), carbonatite and host rocks. The results show good convergence with our petrographical studies of the deposit, and recent manually built maps. The proposed approach can be used as a tool of a deposit genesis reconstruction and preliminary geometallurgical modelling.A. O. KalashnikovG. Yu IvanyukJ. A. MikhailovaV. A. SokharevNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-13 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q A. O. Kalashnikov G. Yu Ivanyuk J. A. Mikhailova V. A. Sokharev Approach of automatic 3D geological mapping: the case of the Kovdor phoscorite-carbonatite complex, NW Russia
description	Abstract We have developed an approach for automatic 3D geological mapping based on conversion of chemical composition of rocks to mineral composition by logical computation. It allows to calculate mineral composition based on bulk rock chemistry, interpolate the mineral composition in the same way as chemical composition, and, finally, build a 3D geological model. The approach was developed for the Kovdor phoscorite-carbonatite complex containing the Kovdor baddeleyite-apatite-magnetite deposit. We used 4 bulk rock chemistry analyses – Femagn, P2O5, CO2 and SiO2. We used four techniques for prediction of rock types – calculation of normative mineral compositions (norms), multiple regression, artificial neural network and developed by logical evaluation. The two latter became the best. As a result, we distinguished 14 types of phoscorites (forsterite-apatite-magnetite-carbonate rock), carbonatite and host rocks. The results show good convergence with our petrographical studies of the deposit, and recent manually built maps. The proposed approach can be used as a tool of a deposit genesis reconstruction and preliminary geometallurgical modelling.
format	article
author	A. O. Kalashnikov G. Yu Ivanyuk J. A. Mikhailova V. A. Sokharev
author_facet	A. O. Kalashnikov G. Yu Ivanyuk J. A. Mikhailova V. A. Sokharev
author_sort	A. O. Kalashnikov
title	Approach of automatic 3D geological mapping: the case of the Kovdor phoscorite-carbonatite complex, NW Russia
title_short	Approach of automatic 3D geological mapping: the case of the Kovdor phoscorite-carbonatite complex, NW Russia
title_full	Approach of automatic 3D geological mapping: the case of the Kovdor phoscorite-carbonatite complex, NW Russia
title_fullStr	Approach of automatic 3D geological mapping: the case of the Kovdor phoscorite-carbonatite complex, NW Russia
title_full_unstemmed	Approach of automatic 3D geological mapping: the case of the Kovdor phoscorite-carbonatite complex, NW Russia
title_sort	approach of automatic 3d geological mapping: the case of the kovdor phoscorite-carbonatite complex, nw russia
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/e1e00d0dc2a548a896f97e7d8a44e01a
work_keys_str_mv	AT aokalashnikov approachofautomatic3dgeologicalmappingthecaseofthekovdorphoscoritecarbonatitecomplexnwrussia AT gyuivanyuk approachofautomatic3dgeologicalmappingthecaseofthekovdorphoscoritecarbonatitecomplexnwrussia AT jamikhailova approachofautomatic3dgeologicalmappingthecaseofthekovdorphoscoritecarbonatitecomplexnwrussia AT vasokharev approachofautomatic3dgeologicalmappingthecaseofthekovdorphoscoritecarbonatitecomplexnwrussia
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Approach of automatic 3D geological mapping: the case of the Kovdor phoscorite-carbonatite complex, NW Russia

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