New aspects to the geology of the Outokumpu region
This study provides a general picture of the geology of the Outokumpu region with no attempt at being a detailed description. Special attention is paid to the areas occupied by Karelian and Prekarelian rocks and the location of the Outokumpu region in relation to the Prekarelian rocks. Age determina...
Published in: | Bulletin of the Geological Society of Finland |
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Geological Society of Finland
1976
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Online Access: | https://doi.org/10.17741/bgsf/48.1-2.002 https://doaj.org/article/f93b3e3e67c8459291cd8395d4677143 |
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ftdoajarticles:oai:doaj.org/article:f93b3e3e67c8459291cd8395d4677143 2023-05-15T17:01:25+02:00 New aspects to the geology of the Outokumpu region A. Huhma 1976-12-01T00:00:00Z https://doi.org/10.17741/bgsf/48.1-2.002 https://doaj.org/article/f93b3e3e67c8459291cd8395d4677143 EN eng Geological Society of Finland http://www.geologinenseura.fi/bulletin/Volume48/sgs_bt_048_1_2_pages_005_024.pdf https://doaj.org/toc/0367-5211 https://doaj.org/toc/1799-4632 doi:10.17741/bgsf/48.1-2.002 0367-5211 1799-4632 https://doaj.org/article/f93b3e3e67c8459291cd8395d4677143 Bulletin of the Geological Society of Finland, Vol 48, Iss 1-2, Pp 5-24 (1976) Geology QE1-996.5 article 1976 ftdoajarticles https://doi.org/10.17741/bgsf/48.1-2.002 2022-12-30T22:48:45Z This study provides a general picture of the geology of the Outokumpu region with no attempt at being a detailed description. Special attention is paid to the areas occupied by Karelian and Prekarelian rocks and the location of the Outokumpu region in relation to the Prekarelian rocks. Age determinations carried out from the area assign an average age of 2680 Ma to the Prekarelian rocks and 1900 Ma to the Karelian rocks (Maarianvaara granite). The differences between the rocks of the serpentinite-quartz rock series and the epicontinental series are elucidated on the basis of analytical data and with triangular diagrams. In the opinion of the present author, the Outokumpu region shows features characteristic of an Alpinotype orogenesis and hence an Alpinotype model is applied to the region. A contrary view has been presented by H. J. Zwart (1967), who considers that the Svecofennian-Karelian area exhibits features typical of Hercynotype orogeny. Finally the genesis of the Outokumpu ore is discussed, the conclusion being reached that it is of submarine origin. Article in Journal/Newspaper karelian Directory of Open Access Journals: DOAJ Articles Bulletin of the Geological Society of Finland 48 1-2 5 24 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Geology QE1-996.5 |
spellingShingle |
Geology QE1-996.5 A. Huhma New aspects to the geology of the Outokumpu region |
topic_facet |
Geology QE1-996.5 |
description |
This study provides a general picture of the geology of the Outokumpu region with no attempt at being a detailed description. Special attention is paid to the areas occupied by Karelian and Prekarelian rocks and the location of the Outokumpu region in relation to the Prekarelian rocks. Age determinations carried out from the area assign an average age of 2680 Ma to the Prekarelian rocks and 1900 Ma to the Karelian rocks (Maarianvaara granite). The differences between the rocks of the serpentinite-quartz rock series and the epicontinental series are elucidated on the basis of analytical data and with triangular diagrams. In the opinion of the present author, the Outokumpu region shows features characteristic of an Alpinotype orogenesis and hence an Alpinotype model is applied to the region. A contrary view has been presented by H. J. Zwart (1967), who considers that the Svecofennian-Karelian area exhibits features typical of Hercynotype orogeny. Finally the genesis of the Outokumpu ore is discussed, the conclusion being reached that it is of submarine origin. |
format |
Article in Journal/Newspaper |
author |
A. Huhma |
author_facet |
A. Huhma |
author_sort |
A. Huhma |
title |
New aspects to the geology of the Outokumpu region |
title_short |
New aspects to the geology of the Outokumpu region |
title_full |
New aspects to the geology of the Outokumpu region |
title_fullStr |
New aspects to the geology of the Outokumpu region |
title_full_unstemmed |
New aspects to the geology of the Outokumpu region |
title_sort |
new aspects to the geology of the outokumpu region |
publisher |
Geological Society of Finland |
publishDate |
1976 |
url |
https://doi.org/10.17741/bgsf/48.1-2.002 https://doaj.org/article/f93b3e3e67c8459291cd8395d4677143 |
genre |
karelian |
genre_facet |
karelian |
op_source |
Bulletin of the Geological Society of Finland, Vol 48, Iss 1-2, Pp 5-24 (1976) |
op_relation |
http://www.geologinenseura.fi/bulletin/Volume48/sgs_bt_048_1_2_pages_005_024.pdf https://doaj.org/toc/0367-5211 https://doaj.org/toc/1799-4632 doi:10.17741/bgsf/48.1-2.002 0367-5211 1799-4632 https://doaj.org/article/f93b3e3e67c8459291cd8395d4677143 |
op_doi |
https://doi.org/10.17741/bgsf/48.1-2.002 |
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Bulletin of the Geological Society of Finland |
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48 |
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1-2 |
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5 |
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24 |
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1766054520065884160 |