Initialer Magmatismus und seine Erzbildung in der Beleuchtung des Koli-Kaltimogebiets
In the Koli—Kaltimo area, North Karelia, Finland, the initial igneous activity of the Karelidic zone has produced diabase dikes and spilitic sills. Some of the sills have differentiated forming spilitic rock associations, which range from peridotite to albite diabase rich in albite. The discussion o...
Published in: | Bulletin of the Geological Society of Finland |
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Language: | English |
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Geological Society of Finland
1969
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ftdoajarticles:oai:doaj.org/article:9e29ebd08c8d496e80382b02c94a710a 2023-05-15T17:00:14+02:00 Initialer Magmatismus und seine Erzbildung in der Beleuchtung des Koli-Kaltimogebiets T. Piirainen 1969-12-01T00:00:00Z https://doi.org/10.17741/bgsf/41.002 https://doaj.org/article/9e29ebd08c8d496e80382b02c94a710a EN eng Geological Society of Finland http://www.geologinenseura.fi/bulletin/Volume41/sgs_bt_041_pages_021_045.pdf https://doaj.org/toc/0367-5211 https://doaj.org/toc/1799-4632 doi:10.17741/bgsf/41.002 0367-5211 1799-4632 https://doaj.org/article/9e29ebd08c8d496e80382b02c94a710a Bulletin of the Geological Society of Finland, Vol 41, Pp 21-45 (1969) Geology QE1-996.5 article 1969 ftdoajarticles https://doi.org/10.17741/bgsf/41.002 2022-12-31T13:08:00Z In the Koli—Kaltimo area, North Karelia, Finland, the initial igneous activity of the Karelidic zone has produced diabase dikes and spilitic sills. Some of the sills have differentiated forming spilitic rock associations, which range from peridotite to albite diabase rich in albite. The discussion of the spilites and the ore forming processes in the crystallisation of spilites is based on field observations, microscopical investigation, the geochemical distribution of some metals in the rocks and minerals, and the isotope ratio of sulphur. Both the diabase dikes and the spilitic sills have originated from the same tholeitic parent magma, the diabases from the »dry» magma and the spilites from the magma that has been rich in water and carbon dioxide. Also the ore-forming processes are different in these two magmas. Article in Journal/Newspaper karelia* Directory of Open Access Journals: DOAJ Articles Bulletin of the Geological Society of Finland 41 21 45 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Geology QE1-996.5 |
spellingShingle |
Geology QE1-996.5 T. Piirainen Initialer Magmatismus und seine Erzbildung in der Beleuchtung des Koli-Kaltimogebiets |
topic_facet |
Geology QE1-996.5 |
description |
In the Koli—Kaltimo area, North Karelia, Finland, the initial igneous activity of the Karelidic zone has produced diabase dikes and spilitic sills. Some of the sills have differentiated forming spilitic rock associations, which range from peridotite to albite diabase rich in albite. The discussion of the spilites and the ore forming processes in the crystallisation of spilites is based on field observations, microscopical investigation, the geochemical distribution of some metals in the rocks and minerals, and the isotope ratio of sulphur. Both the diabase dikes and the spilitic sills have originated from the same tholeitic parent magma, the diabases from the »dry» magma and the spilites from the magma that has been rich in water and carbon dioxide. Also the ore-forming processes are different in these two magmas. |
format |
Article in Journal/Newspaper |
author |
T. Piirainen |
author_facet |
T. Piirainen |
author_sort |
T. Piirainen |
title |
Initialer Magmatismus und seine Erzbildung in der Beleuchtung des Koli-Kaltimogebiets |
title_short |
Initialer Magmatismus und seine Erzbildung in der Beleuchtung des Koli-Kaltimogebiets |
title_full |
Initialer Magmatismus und seine Erzbildung in der Beleuchtung des Koli-Kaltimogebiets |
title_fullStr |
Initialer Magmatismus und seine Erzbildung in der Beleuchtung des Koli-Kaltimogebiets |
title_full_unstemmed |
Initialer Magmatismus und seine Erzbildung in der Beleuchtung des Koli-Kaltimogebiets |
title_sort |
initialer magmatismus und seine erzbildung in der beleuchtung des koli-kaltimogebiets |
publisher |
Geological Society of Finland |
publishDate |
1969 |
url |
https://doi.org/10.17741/bgsf/41.002 https://doaj.org/article/9e29ebd08c8d496e80382b02c94a710a |
genre |
karelia* |
genre_facet |
karelia* |
op_source |
Bulletin of the Geological Society of Finland, Vol 41, Pp 21-45 (1969) |
op_relation |
http://www.geologinenseura.fi/bulletin/Volume41/sgs_bt_041_pages_021_045.pdf https://doaj.org/toc/0367-5211 https://doaj.org/toc/1799-4632 doi:10.17741/bgsf/41.002 0367-5211 1799-4632 https://doaj.org/article/9e29ebd08c8d496e80382b02c94a710a |
op_doi |
https://doi.org/10.17741/bgsf/41.002 |
container_title |
Bulletin of the Geological Society of Finland |
container_volume |
41 |
container_start_page |
21 |
op_container_end_page |
45 |
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1766052874855383040 |