Vendian age of igneous rocks of the Chamberlain valley area (Northern part of the Wedel Jarlsberg Land, Svalbard Archipelago)
The geological structure, structural relations with the underlying complexes, mineral composition, age and origin of sedimentary-volcanogenic and intrusive formations of the Chamberlain valley area (northern part of the Wedel Jarlsberg Land, Svalbard Archipelago) are considered. As a result of the s...
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Saint-Petersburg Mining University
2022
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ftdoajarticles:oai:doaj.org/article:017ac6daf2ed472dbaeb0543a5b87a51 2023-05-15T18:29:24+02:00 Vendian age of igneous rocks of the Chamberlain valley area (Northern part of the Wedel Jarlsberg Land, Svalbard Archipelago) Aleksandr N. Sirotkin Aleksandr N. Evdokimov 2022-07-01T00:00:00Z https://doi.org/10.31897/PMI.2022.20 https://doaj.org/article/017ac6daf2ed472dbaeb0543a5b87a51 EN RU eng rus Saint-Petersburg Mining University https://pmi.spmi.ru/index.php/pmi/article/view/14654?setLocale=en_US https://doaj.org/toc/2411-3336 https://doaj.org/toc/2541-9404 2411-3336 2541-9404 doi:10.31897/PMI.2022.20 https://doaj.org/article/017ac6daf2ed472dbaeb0543a5b87a51 Записки Горного института, Vol 255, Pp 419-434 (2022) svalbard sedimentary-volcanogenic complex basic magmatism peridotites gabbro metavolcanic the vendian the middle riphean zircon absolute age Mining engineering. Metallurgy TN1-997 article 2022 ftdoajarticles https://doi.org/10.31897/PMI.2022.20 2023-01-22T01:30:25Z The geological structure, structural relations with the underlying complexes, mineral composition, age and origin of sedimentary-volcanogenic and intrusive formations of the Chamberlain valley area (northern part of the Wedel Jarlsberg Land, Svalbard Archipelago) are considered. As a result of the studies, two stages of the Late Precambrian endogenous activity in this area have been identified. For the first time the Vendian ages (593-559 Ma) of intrusive (dolerites) and effusive (basalts, andesites, tuffs) rocks were determined by U-Pb-method (SHRIMP-II) for Svalbard Archipelago. At the same time, the Grenville ages for large bodies of gabbro-diorites, metadolerites bodies (1152-967 Ma), and metagranites (936 Ma) were determined for the first time for this area, which correlates well with the ages of magmatic formations obtained earlier in the southern part of Wedel Jarlsberg Land. A detailed petrographic and petrochemical characterization of all the described objects were compiled and the paleotectonic conditions of their formation were reconstructed. Based on these data, the Chemberlendalen series, which is dated to the Late Vendian, and the Rechurchbreen series, which the authors attribute to the Middle Riphean and correlate with the lower part of the Nordbucht series are distinguished. The data obtained indicate a two-stage Precambrian magmatism in this area of the Svalbard archipelago and, most importantly, provide evidence for the first time ever of endogenous activity on Svalbard in the Vendian time. This fact makes it possible to reconsider in the future the history of the formation of folded basement of the Svalbard archipelago and the nature of the geodynamic conditions in which it was formed. Article in Journal/Newspaper Svalbard Wedel Jarlsberg Land Directory of Open Access Journals: DOAJ Articles Svalbard Svalbard Archipelago Wedel Jarlsberg Land ENVELOPE(15.362,15.362,77.201,77.201) Wedel-Jarlsberg ENVELOPE(-165.133,-165.133,-85.650,-85.650) Journal of Mining Institute 255 419 434 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English Russian |
topic |
svalbard sedimentary-volcanogenic complex basic magmatism peridotites gabbro metavolcanic the vendian the middle riphean zircon absolute age Mining engineering. Metallurgy TN1-997 |
spellingShingle |
svalbard sedimentary-volcanogenic complex basic magmatism peridotites gabbro metavolcanic the vendian the middle riphean zircon absolute age Mining engineering. Metallurgy TN1-997 Aleksandr N. Sirotkin Aleksandr N. Evdokimov Vendian age of igneous rocks of the Chamberlain valley area (Northern part of the Wedel Jarlsberg Land, Svalbard Archipelago) |
topic_facet |
svalbard sedimentary-volcanogenic complex basic magmatism peridotites gabbro metavolcanic the vendian the middle riphean zircon absolute age Mining engineering. Metallurgy TN1-997 |
description |
The geological structure, structural relations with the underlying complexes, mineral composition, age and origin of sedimentary-volcanogenic and intrusive formations of the Chamberlain valley area (northern part of the Wedel Jarlsberg Land, Svalbard Archipelago) are considered. As a result of the studies, two stages of the Late Precambrian endogenous activity in this area have been identified. For the first time the Vendian ages (593-559 Ma) of intrusive (dolerites) and effusive (basalts, andesites, tuffs) rocks were determined by U-Pb-method (SHRIMP-II) for Svalbard Archipelago. At the same time, the Grenville ages for large bodies of gabbro-diorites, metadolerites bodies (1152-967 Ma), and metagranites (936 Ma) were determined for the first time for this area, which correlates well with the ages of magmatic formations obtained earlier in the southern part of Wedel Jarlsberg Land. A detailed petrographic and petrochemical characterization of all the described objects were compiled and the paleotectonic conditions of their formation were reconstructed. Based on these data, the Chemberlendalen series, which is dated to the Late Vendian, and the Rechurchbreen series, which the authors attribute to the Middle Riphean and correlate with the lower part of the Nordbucht series are distinguished. The data obtained indicate a two-stage Precambrian magmatism in this area of the Svalbard archipelago and, most importantly, provide evidence for the first time ever of endogenous activity on Svalbard in the Vendian time. This fact makes it possible to reconsider in the future the history of the formation of folded basement of the Svalbard archipelago and the nature of the geodynamic conditions in which it was formed. |
format |
Article in Journal/Newspaper |
author |
Aleksandr N. Sirotkin Aleksandr N. Evdokimov |
author_facet |
Aleksandr N. Sirotkin Aleksandr N. Evdokimov |
author_sort |
Aleksandr N. Sirotkin |
title |
Vendian age of igneous rocks of the Chamberlain valley area (Northern part of the Wedel Jarlsberg Land, Svalbard Archipelago) |
title_short |
Vendian age of igneous rocks of the Chamberlain valley area (Northern part of the Wedel Jarlsberg Land, Svalbard Archipelago) |
title_full |
Vendian age of igneous rocks of the Chamberlain valley area (Northern part of the Wedel Jarlsberg Land, Svalbard Archipelago) |
title_fullStr |
Vendian age of igneous rocks of the Chamberlain valley area (Northern part of the Wedel Jarlsberg Land, Svalbard Archipelago) |
title_full_unstemmed |
Vendian age of igneous rocks of the Chamberlain valley area (Northern part of the Wedel Jarlsberg Land, Svalbard Archipelago) |
title_sort |
vendian age of igneous rocks of the chamberlain valley area (northern part of the wedel jarlsberg land, svalbard archipelago) |
publisher |
Saint-Petersburg Mining University |
publishDate |
2022 |
url |
https://doi.org/10.31897/PMI.2022.20 https://doaj.org/article/017ac6daf2ed472dbaeb0543a5b87a51 |
long_lat |
ENVELOPE(15.362,15.362,77.201,77.201) ENVELOPE(-165.133,-165.133,-85.650,-85.650) |
geographic |
Svalbard Svalbard Archipelago Wedel Jarlsberg Land Wedel-Jarlsberg |
geographic_facet |
Svalbard Svalbard Archipelago Wedel Jarlsberg Land Wedel-Jarlsberg |
genre |
Svalbard Wedel Jarlsberg Land |
genre_facet |
Svalbard Wedel Jarlsberg Land |
op_source |
Записки Горного института, Vol 255, Pp 419-434 (2022) |
op_relation |
https://pmi.spmi.ru/index.php/pmi/article/view/14654?setLocale=en_US https://doaj.org/toc/2411-3336 https://doaj.org/toc/2541-9404 2411-3336 2541-9404 doi:10.31897/PMI.2022.20 https://doaj.org/article/017ac6daf2ed472dbaeb0543a5b87a51 |
op_doi |
https://doi.org/10.31897/PMI.2022.20 |
container_title |
Journal of Mining Institute |
container_volume |
255 |
container_start_page |
419 |
op_container_end_page |
434 |
_version_ |
1766212417788837888 |