Tectonostratigraphic position of the Finnish Caledonides at the Fennoscandian margin of the northern Scandes
The Finnish Caledonides consist of the lower structural units characteristic of much of the northern Scandes, whose foreland is now known to be Archaean throughout its extension in Finland. The autochthonous Dividal sedimentary rocks pass very gradually into the somewhat overthrust Jerta rocks. Thes...
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Geological Society of Finland
1989
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ftdoajarticles:oai:doaj.org/article:4304dca2c7f34fd7863851b669e8c87a 2023-05-15T16:06:13+02:00 Tectonostratigraphic position of the Finnish Caledonides at the Fennoscandian margin of the northern Scandes J.J. Lehtovaara 1989-12-01T00:00:00Z https://doi.org/10.17741/bgsf/61.2.004 https://doaj.org/article/4304dca2c7f34fd7863851b669e8c87a EN eng Geological Society of Finland http://www.geologinenseura.fi/bulletin/Volume61/sgs_bt_061_2_pages_189_195.pdf https://doaj.org/toc/0367-5211 https://doaj.org/toc/1799-4632 doi:10.17741/bgsf/61.2.004 0367-5211 1799-4632 https://doaj.org/article/4304dca2c7f34fd7863851b669e8c87a Bulletin of the Geological Society of Finland, Vol 61, Iss 2, Pp 189-195 (1989) stratigraphy tectonics correlation metamorphic rocks nappe Caledonides Paleozoic Enontekiö Finland Geology QE1-996.5 article 1989 ftdoajarticles https://doi.org/10.17741/bgsf/61.2.004 2022-12-31T09:11:15Z The Finnish Caledonides consist of the lower structural units characteristic of much of the northern Scandes, whose foreland is now known to be Archaean throughout its extension in Finland. The autochthonous Dividal sedimentary rocks pass very gradually into the somewhat overthrust Jerta rocks. These are capped by the Nalganas meta-arkosites, which have undergone considerable displacement. The overlying Nabar plate consists of a lower sequence of heterogeneous amphibolite ‒ pegmatitic gneiss and an upper part of very homogeneous acidic gneiss intruded and thrust by ultramafic to mafic ophiolitic material. The origin and tectonostratigraphic correlation of the conventional Nabar Nappe are discussed in more detail, because it has features suggesting it may be part of the overlying Seve Nappe Complex. Direct proof of this is lacking, however, and so only the special characteristics of the units are discussed and comparisons made with the adjacent Norwegian and Swedish terrains. The topmost Kalak unit, the Corrovarre Nappe, also occurs in the Finnish part of the Kalak Nappe Complex. Article in Journal/Newspaper Enontekiö Fennoscandian Directory of Open Access Journals: DOAJ Articles Enontekiö ENVELOPE(23.632,23.632,68.386,68.386) Kalak ENVELOPE(27.055,27.055,70.611,70.611) Bulletin of the Geological Society of Finland 61 2 189 195 |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
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English |
topic |
stratigraphy tectonics correlation metamorphic rocks nappe Caledonides Paleozoic Enontekiö Finland Geology QE1-996.5 |
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stratigraphy tectonics correlation metamorphic rocks nappe Caledonides Paleozoic Enontekiö Finland Geology QE1-996.5 J.J. Lehtovaara Tectonostratigraphic position of the Finnish Caledonides at the Fennoscandian margin of the northern Scandes |
topic_facet |
stratigraphy tectonics correlation metamorphic rocks nappe Caledonides Paleozoic Enontekiö Finland Geology QE1-996.5 |
description |
The Finnish Caledonides consist of the lower structural units characteristic of much of the northern Scandes, whose foreland is now known to be Archaean throughout its extension in Finland. The autochthonous Dividal sedimentary rocks pass very gradually into the somewhat overthrust Jerta rocks. These are capped by the Nalganas meta-arkosites, which have undergone considerable displacement. The overlying Nabar plate consists of a lower sequence of heterogeneous amphibolite ‒ pegmatitic gneiss and an upper part of very homogeneous acidic gneiss intruded and thrust by ultramafic to mafic ophiolitic material. The origin and tectonostratigraphic correlation of the conventional Nabar Nappe are discussed in more detail, because it has features suggesting it may be part of the overlying Seve Nappe Complex. Direct proof of this is lacking, however, and so only the special characteristics of the units are discussed and comparisons made with the adjacent Norwegian and Swedish terrains. The topmost Kalak unit, the Corrovarre Nappe, also occurs in the Finnish part of the Kalak Nappe Complex. |
format |
Article in Journal/Newspaper |
author |
J.J. Lehtovaara |
author_facet |
J.J. Lehtovaara |
author_sort |
J.J. Lehtovaara |
title |
Tectonostratigraphic position of the Finnish Caledonides at the Fennoscandian margin of the northern Scandes |
title_short |
Tectonostratigraphic position of the Finnish Caledonides at the Fennoscandian margin of the northern Scandes |
title_full |
Tectonostratigraphic position of the Finnish Caledonides at the Fennoscandian margin of the northern Scandes |
title_fullStr |
Tectonostratigraphic position of the Finnish Caledonides at the Fennoscandian margin of the northern Scandes |
title_full_unstemmed |
Tectonostratigraphic position of the Finnish Caledonides at the Fennoscandian margin of the northern Scandes |
title_sort |
tectonostratigraphic position of the finnish caledonides at the fennoscandian margin of the northern scandes |
publisher |
Geological Society of Finland |
publishDate |
1989 |
url |
https://doi.org/10.17741/bgsf/61.2.004 https://doaj.org/article/4304dca2c7f34fd7863851b669e8c87a |
long_lat |
ENVELOPE(23.632,23.632,68.386,68.386) ENVELOPE(27.055,27.055,70.611,70.611) |
geographic |
Enontekiö Kalak |
geographic_facet |
Enontekiö Kalak |
genre |
Enontekiö Fennoscandian |
genre_facet |
Enontekiö Fennoscandian |
op_source |
Bulletin of the Geological Society of Finland, Vol 61, Iss 2, Pp 189-195 (1989) |
op_relation |
http://www.geologinenseura.fi/bulletin/Volume61/sgs_bt_061_2_pages_189_195.pdf https://doaj.org/toc/0367-5211 https://doaj.org/toc/1799-4632 doi:10.17741/bgsf/61.2.004 0367-5211 1799-4632 https://doaj.org/article/4304dca2c7f34fd7863851b669e8c87a |
op_doi |
https://doi.org/10.17741/bgsf/61.2.004 |
container_title |
Bulletin of the Geological Society of Finland |
container_volume |
61 |
container_issue |
2 |
container_start_page |
189 |
op_container_end_page |
195 |
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1766402117912756224 |