Combined magnetic, electromagnetic and resistivity study over a highly conductive formation in Orrivaara, Northern Sweden
ABSTRACT Different geophysical methods were used to determine the characteristics of a highly conductive structure in Northern Sweden, first discovered on airborne data. Airborne electromagnetic (very low frequency) data indicate a high conductivity structure coincident with low magnetic patterns. T...
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crwiley:10.1111/j.1365-2478.2011.00998.x 2024-06-02T08:12:08+00:00 Combined magnetic, electromagnetic and resistivity study over a highly conductive formation in Orrivaara, Northern Sweden Persson, Lena Lundin, Ildikó Antal Pedersen, Laust B. Claeson, Dick 2011 http://dx.doi.org/10.1111/j.1365-2478.2011.00998.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2478.2011.00998.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2478.2011.00998.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Geophysical Prospecting volume 59, issue 6, page 1155-1163 ISSN 0016-8025 1365-2478 journal-article 2011 crwiley https://doi.org/10.1111/j.1365-2478.2011.00998.x 2024-05-03T11:52:41Z ABSTRACT Different geophysical methods were used to determine the characteristics of a highly conductive structure in Northern Sweden, first discovered on airborne data. Airborne electromagnetic (very low frequency) data indicate a high conductivity structure coincident with low magnetic patterns. The airborne data were processed in different ways to enhance various structures/features. In particular we introduce a new transformation to current density that is suitable for delineating conductive structures. Ground measurements of the total magnetic field, radiomagnetotelluric measurements and resistivity imaging provided valuable information that was used in the compilation of a new bedrock map over the area. The results of our measurements indicate that the conducting structure consists of metasedimentary rocks containing thin horizons of pyrrhotite and graphite. Article in Journal/Newspaper Northern Sweden Wiley Online Library Geophysical Prospecting 59 6 1155 1163 |
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Wiley Online Library |
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English |
description |
ABSTRACT Different geophysical methods were used to determine the characteristics of a highly conductive structure in Northern Sweden, first discovered on airborne data. Airborne electromagnetic (very low frequency) data indicate a high conductivity structure coincident with low magnetic patterns. The airborne data were processed in different ways to enhance various structures/features. In particular we introduce a new transformation to current density that is suitable for delineating conductive structures. Ground measurements of the total magnetic field, radiomagnetotelluric measurements and resistivity imaging provided valuable information that was used in the compilation of a new bedrock map over the area. The results of our measurements indicate that the conducting structure consists of metasedimentary rocks containing thin horizons of pyrrhotite and graphite. |
format |
Article in Journal/Newspaper |
author |
Persson, Lena Lundin, Ildikó Antal Pedersen, Laust B. Claeson, Dick |
spellingShingle |
Persson, Lena Lundin, Ildikó Antal Pedersen, Laust B. Claeson, Dick Combined magnetic, electromagnetic and resistivity study over a highly conductive formation in Orrivaara, Northern Sweden |
author_facet |
Persson, Lena Lundin, Ildikó Antal Pedersen, Laust B. Claeson, Dick |
author_sort |
Persson, Lena |
title |
Combined magnetic, electromagnetic and resistivity study over a highly conductive formation in Orrivaara, Northern Sweden |
title_short |
Combined magnetic, electromagnetic and resistivity study over a highly conductive formation in Orrivaara, Northern Sweden |
title_full |
Combined magnetic, electromagnetic and resistivity study over a highly conductive formation in Orrivaara, Northern Sweden |
title_fullStr |
Combined magnetic, electromagnetic and resistivity study over a highly conductive formation in Orrivaara, Northern Sweden |
title_full_unstemmed |
Combined magnetic, electromagnetic and resistivity study over a highly conductive formation in Orrivaara, Northern Sweden |
title_sort |
combined magnetic, electromagnetic and resistivity study over a highly conductive formation in orrivaara, northern sweden |
publisher |
Wiley |
publishDate |
2011 |
url |
http://dx.doi.org/10.1111/j.1365-2478.2011.00998.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2478.2011.00998.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2478.2011.00998.x |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_source |
Geophysical Prospecting volume 59, issue 6, page 1155-1163 ISSN 0016-8025 1365-2478 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1365-2478.2011.00998.x |
container_title |
Geophysical Prospecting |
container_volume |
59 |
container_issue |
6 |
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1155 |
op_container_end_page |
1163 |
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1800758484253278208 |