First results of the U-Pb isotopic (LA-ICP-MS) dating of detrital zircons from the lower paleozoic of spitsbergen
This work presents the first results of dating of detrital zircons (dZrs) from the Lower Paleozoic ter- rigenous-carbonate rocks of the Cambrian Blåstertoppen (samples 08-137 and 08-142, south of the Wedel Jarlsberg Land) and Ordovician Wiederfjellet (sample K06-17, north of the Land) sequences, whi...
Published in: | Doklady Earth Sciences |
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Language: | English |
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2020
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Online Access: | https://openrepository.ru/article?id=255714 |
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ftneicon:oai:rour.neicon.ru:rour/255714 |
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record_format |
openpolar |
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Open Polar |
collection |
NORA (National aggregator of open repositories of Russian universities) |
op_collection_id |
ftneicon |
language |
English |
topic |
Gallium Inductively coupled plasma mass spectrometry Lead Age distribution Clastic materials Detrital zircon Erosion products Kolmogorov-Smirnov test Probability densities Sedimentary basin Visual similarity Geochronology age determination basement rock clastic rock coastal zone detrital deposit fjord geoaccumulation inductively coupled plasma method Paleozoic probability density function Rodinia uranium-lead dating zircon Arctic Hornsund Spitsbergen Svalbard Svalbard and Jan Mayen |
spellingShingle |
Gallium Inductively coupled plasma mass spectrometry Lead Age distribution Clastic materials Detrital zircon Erosion products Kolmogorov-Smirnov test Probability densities Sedimentary basin Visual similarity Geochronology age determination basement rock clastic rock coastal zone detrital deposit fjord geoaccumulation inductively coupled plasma method Paleozoic probability density function Rodinia uranium-lead dating zircon Arctic Hornsund Spitsbergen Svalbard Svalbard and Jan Mayen Kosteva N.N. Kuznetsov N.B. Teben'kov A.M. Romanyuk T.V. First results of the U-Pb isotopic (LA-ICP-MS) dating of detrital zircons from the lower paleozoic of spitsbergen |
topic_facet |
Gallium Inductively coupled plasma mass spectrometry Lead Age distribution Clastic materials Detrital zircon Erosion products Kolmogorov-Smirnov test Probability densities Sedimentary basin Visual similarity Geochronology age determination basement rock clastic rock coastal zone detrital deposit fjord geoaccumulation inductively coupled plasma method Paleozoic probability density function Rodinia uranium-lead dating zircon Arctic Hornsund Spitsbergen Svalbard Svalbard and Jan Mayen |
description |
This work presents the first results of dating of detrital zircons (dZrs) from the Lower Paleozoic ter- rigenous-carbonate rocks of the Cambrian Blåstertoppen (samples 08-137 and 08-142, south of the Wedel Jarlsberg Land) and Ordovician Wiederfjellet (sample K06-17, north of the Land) sequences, which are wide- spread to the north and south of the Hornsund Fjord, on the southwestern coast of Spitsbergen Island. Against the background of sporadic values of 1-3 Ga, samples K06-17 and 08-142 showed similar spectra of the age distribution of dZrs with dominant compact numerous age groups of ∼1.8-1.9 Ga and peaks of the maximum of the probability density of 1850 and 1862 Ma, respectively. The only noticeable difference in these spectra is the presence of a young grain of 541 Ma in sample 08-142 (with a very good value of concordance), which is close to the suggested Cambrian age of formation of the Blåstertoppen sequence. The distribution of the dZr ages in sample 08-137 is significantly distinct. First, the general age range is narrower: 1.15-1.95 Ga (no Archean ages). Second, the age of 1.8-2.0 Ga dominant in the other two samples corresponds to only one grain. Thus, although samples 08-137 and 08-142 were taken from closely located levels of the section of the Cambrian Blåstertoppen sequence (in the same interception), the age spectra of dZrs from these samples differ cardinally. The statistical Kolmogorov-Smirnov test quantitatively supports the visual similarity of age spectra of dZrs from samples K06-17 and 08-142 (p = 0.913) and the distinction of those from samples 08-142 and 08-137 (p = 0). Thus, the provenance areas, which supplied the clastic material to the sedimentary basin, whose remnants are presently located in the southwestern part of Spitsbergen, abruptly changed in the Cambrian. The basal levels of the Cambrian section of this basin (sample 08-137) were mostly formed due to accumulation of the erosion products of the local (Spitsbergen) sources: metarocks of the Eimfjellet Group located in the south of the Wedel Jarlsberg Land and of the Smerenburgfjord Group abundant on the Albert I Land. The dZrs age spectrum is a print of the ages of the Late Paleoprotero- zoic-Mesoproterozoic (pre-Grenville) basement unaffected by assemblage of Rodinia. Then the conditions changed and the basin became to accumulate the material from the remote regions, significant parts of which were the areas of ancient cratons, including Archean blocks. The general sedimentation conditions did not change considerably, because the rock type remained the same. © Pleiades Publishing, Ltd., 2014. |
format |
Article in Journal/Newspaper |
author |
Kosteva N.N. Kuznetsov N.B. Teben'kov A.M. Romanyuk T.V. |
author_facet |
Kosteva N.N. Kuznetsov N.B. Teben'kov A.M. Romanyuk T.V. |
author_sort |
Kosteva N.N. |
title |
First results of the U-Pb isotopic (LA-ICP-MS) dating of detrital zircons from the lower paleozoic of spitsbergen |
title_short |
First results of the U-Pb isotopic (LA-ICP-MS) dating of detrital zircons from the lower paleozoic of spitsbergen |
title_full |
First results of the U-Pb isotopic (LA-ICP-MS) dating of detrital zircons from the lower paleozoic of spitsbergen |
title_fullStr |
First results of the U-Pb isotopic (LA-ICP-MS) dating of detrital zircons from the lower paleozoic of spitsbergen |
title_full_unstemmed |
First results of the U-Pb isotopic (LA-ICP-MS) dating of detrital zircons from the lower paleozoic of spitsbergen |
title_sort |
first results of the u-pb isotopic (la-icp-ms) dating of detrital zircons from the lower paleozoic of spitsbergen |
publishDate |
2020 |
url |
https://openrepository.ru/article?id=255714 |
long_lat |
ENVELOPE(11.500,11.500,79.500,79.500) ENVELOPE(15.644,15.644,77.203,77.203) ENVELOPE(15.404,15.404,77.049,77.049) ENVELOPE(15.865,15.865,76.979,76.979) ENVELOPE(165.533,165.533,-72.700,-72.700) ENVELOPE(20.000,20.000,78.000,78.000) ENVELOPE(15.362,15.362,77.201,77.201) ENVELOPE(-165.133,-165.133,-85.650,-85.650) ENVELOPE(15.934,15.934,76.838,76.838) |
geographic |
Albert I Land Arctic Blåstertoppen Eimfjellet Hornsund Jan Mayen Pleiades Svalbard Svalbard Wedel Jarlsberg Land Wedel-Jarlsberg Wiederfjellet |
geographic_facet |
Albert I Land Arctic Blåstertoppen Eimfjellet Hornsund Jan Mayen Pleiades Svalbard Svalbard Wedel Jarlsberg Land Wedel-Jarlsberg Wiederfjellet |
genre |
Albert I Land Arctic Hornsund Jan Mayen Svalbard Wedel Jarlsberg Land Spitsbergen |
genre_facet |
Albert I Land Arctic Hornsund Jan Mayen Svalbard Wedel Jarlsberg Land Spitsbergen |
op_source |
Doklady Earth Sciences |
op_relation |
https://doi.org/10.1134/S1028334X1403026X https://openrepository.ru/article?id=255714 |
op_rights |
open access |
op_doi |
https://doi.org/10.1134/S1028334X1403026X |
container_title |
Doklady Earth Sciences |
container_volume |
455 |
container_issue |
1 |
container_start_page |
259 |
op_container_end_page |
265 |
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1766250491789967360 |
spelling |
ftneicon:oai:rour.neicon.ru:rour/255714 2023-05-15T13:12:09+02:00 First results of the U-Pb isotopic (LA-ICP-MS) dating of detrital zircons from the lower paleozoic of spitsbergen Kosteva N.N. Kuznetsov N.B. Teben'kov A.M. Romanyuk T.V. 2020-03-03T14:40:47Z https://openrepository.ru/article?id=255714 EN eng https://doi.org/10.1134/S1028334X1403026X https://openrepository.ru/article?id=255714 open access Doklady Earth Sciences Gallium Inductively coupled plasma mass spectrometry Lead Age distribution Clastic materials Detrital zircon Erosion products Kolmogorov-Smirnov test Probability densities Sedimentary basin Visual similarity Geochronology age determination basement rock clastic rock coastal zone detrital deposit fjord geoaccumulation inductively coupled plasma method Paleozoic probability density function Rodinia uranium-lead dating zircon Arctic Hornsund Spitsbergen Svalbard Svalbard and Jan Mayen Article 2020 ftneicon https://doi.org/10.1134/S1028334X1403026X 2020-07-21T12:21:26Z This work presents the first results of dating of detrital zircons (dZrs) from the Lower Paleozoic ter- rigenous-carbonate rocks of the Cambrian Blåstertoppen (samples 08-137 and 08-142, south of the Wedel Jarlsberg Land) and Ordovician Wiederfjellet (sample K06-17, north of the Land) sequences, which are wide- spread to the north and south of the Hornsund Fjord, on the southwestern coast of Spitsbergen Island. Against the background of sporadic values of 1-3 Ga, samples K06-17 and 08-142 showed similar spectra of the age distribution of dZrs with dominant compact numerous age groups of ∼1.8-1.9 Ga and peaks of the maximum of the probability density of 1850 and 1862 Ma, respectively. The only noticeable difference in these spectra is the presence of a young grain of 541 Ma in sample 08-142 (with a very good value of concordance), which is close to the suggested Cambrian age of formation of the Blåstertoppen sequence. The distribution of the dZr ages in sample 08-137 is significantly distinct. First, the general age range is narrower: 1.15-1.95 Ga (no Archean ages). Second, the age of 1.8-2.0 Ga dominant in the other two samples corresponds to only one grain. Thus, although samples 08-137 and 08-142 were taken from closely located levels of the section of the Cambrian Blåstertoppen sequence (in the same interception), the age spectra of dZrs from these samples differ cardinally. The statistical Kolmogorov-Smirnov test quantitatively supports the visual similarity of age spectra of dZrs from samples K06-17 and 08-142 (p = 0.913) and the distinction of those from samples 08-142 and 08-137 (p = 0). Thus, the provenance areas, which supplied the clastic material to the sedimentary basin, whose remnants are presently located in the southwestern part of Spitsbergen, abruptly changed in the Cambrian. The basal levels of the Cambrian section of this basin (sample 08-137) were mostly formed due to accumulation of the erosion products of the local (Spitsbergen) sources: metarocks of the Eimfjellet Group located in the south of the Wedel Jarlsberg Land and of the Smerenburgfjord Group abundant on the Albert I Land. The dZrs age spectrum is a print of the ages of the Late Paleoprotero- zoic-Mesoproterozoic (pre-Grenville) basement unaffected by assemblage of Rodinia. Then the conditions changed and the basin became to accumulate the material from the remote regions, significant parts of which were the areas of ancient cratons, including Archean blocks. The general sedimentation conditions did not change considerably, because the rock type remained the same. © Pleiades Publishing, Ltd., 2014. Article in Journal/Newspaper Albert I Land Arctic Hornsund Jan Mayen Svalbard Wedel Jarlsberg Land Spitsbergen NORA (National aggregator of open repositories of Russian universities) Albert I Land ENVELOPE(11.500,11.500,79.500,79.500) Arctic Blåstertoppen ENVELOPE(15.644,15.644,77.203,77.203) Eimfjellet ENVELOPE(15.404,15.404,77.049,77.049) Hornsund ENVELOPE(15.865,15.865,76.979,76.979) Jan Mayen Pleiades ENVELOPE(165.533,165.533,-72.700,-72.700) Svalbard Svalbard ENVELOPE(20.000,20.000,78.000,78.000) Wedel Jarlsberg Land ENVELOPE(15.362,15.362,77.201,77.201) Wedel-Jarlsberg ENVELOPE(-165.133,-165.133,-85.650,-85.650) Wiederfjellet ENVELOPE(15.934,15.934,76.838,76.838) Doklady Earth Sciences 455 1 259 265 |