Image3_The Influence of the Permian-Triassic Magmatism in the Tunguska Basin, Siberia on the Regional Floristic Biota of the Permian-Triassic Transition in the Region.pdf
The end-Permian extinction event (EPEE) considered to have been caused by the eruption of the Siberian Large Igneous Province (SLIP), the age of which is critical for extinction-SLIP model evaluation. The Tunguska Basin flora during this time, in accordance with the EPEE model, supposed to have been...
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ftfrontimediafig:oai:figshare.com:article/14540115 2023-05-15T17:24:59+02:00 Image3_The Influence of the Permian-Triassic Magmatism in the Tunguska Basin, Siberia on the Regional Floristic Biota of the Permian-Triassic Transition in the Region.pdf V. I. Davydov E. V. Karasev 2021-05-05T07:21:40Z https://doi.org/10.3389/feart.2021.635179.s003 https://figshare.com/articles/figure/Image3_The_Influence_of_the_Permian-Triassic_Magmatism_in_the_Tunguska_Basin_Siberia_on_the_Regional_Floristic_Biota_of_the_Permian-Triassic_Transition_in_the_Region_pdf/14540115 unknown doi:10.3389/feart.2021.635179.s003 https://figshare.com/articles/figure/Image3_The_Influence_of_the_Permian-Triassic_Magmatism_in_the_Tunguska_Basin_Siberia_on_the_Regional_Floristic_Biota_of_the_Permian-Triassic_Transition_in_the_Region_pdf/14540115 CC BY 4.0 CC-BY Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change Permian-Triassic transition Norilsk Russia radioisotopic ages geomagnetic secular variartion multi-stadial intrusions floral diversity and dynamics Image Figure 2021 ftfrontimediafig https://doi.org/10.3389/feart.2021.635179.s003 2021-05-05T22:57:02Z The end-Permian extinction event (EPEE) considered to have been caused by the eruption of the Siberian Large Igneous Province (SLIP), the age of which is critical for extinction-SLIP model evaluation. The Tunguska Basin flora during this time, in accordance with the EPEE model, supposed to have been killed by the massive injection into the atmosphere of poisonous substances such as methane, sulfates, mercury and massive combastion of coals. In addition, supposed numerous fires presumably devastated the regional flora. However, the diversity of the Tunguska Basin flora drasticly increased at the beginning of Induan or slightly earlier and become diverse at the species level in the Olenekian and Anisian, when the main phase of basalt eruption and associated intrusive activity occurred. The overall magmatic activity during the latest Permian and Early Triassic did not kill the flora, but rather stimulate their diversity. The geomagnetic secular variations from the intrusions revealed the similarity of paleomagnetic directions of the Norilsk group layered intrusions with those of the upper Olenekian and lower Anisian Mokulaev and Kharaelakh volcanic formations and intrusions of the Talnakh group with the Olenekian Moronga-Mokulaev formations. The U-Pb dates and the geomagnetic secular variations data expose the obvious discrepancy between these two datasets. The paleomagnetic data suggest that the Norilsk-1 intrusion is younger than the Talnakn and Kharaelakh intrusions, but the U-Pb dates indicate the opposite. The data from layered intrusions in Norilsk and the other regions suggest their prolonged duration and multi-stadial formation. The U-Pb dates from the intrusions of the Norilsk region roughly constrain the onset of the SLIP and generally postdate the end-Permian extinction. Still Image norilsk Siberia Frontiers: Figshare Norilsk ENVELOPE(88.203,88.203,69.354,69.354) Tunguska ENVELOPE(144.784,144.784,59.388,59.388) Talnakh ENVELOPE(88.205,88.205,69.470,69.470) |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change Permian-Triassic transition Norilsk Russia radioisotopic ages geomagnetic secular variartion multi-stadial intrusions floral diversity and dynamics |
spellingShingle |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change Permian-Triassic transition Norilsk Russia radioisotopic ages geomagnetic secular variartion multi-stadial intrusions floral diversity and dynamics V. I. Davydov E. V. Karasev Image3_The Influence of the Permian-Triassic Magmatism in the Tunguska Basin, Siberia on the Regional Floristic Biota of the Permian-Triassic Transition in the Region.pdf |
topic_facet |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change Permian-Triassic transition Norilsk Russia radioisotopic ages geomagnetic secular variartion multi-stadial intrusions floral diversity and dynamics |
description |
The end-Permian extinction event (EPEE) considered to have been caused by the eruption of the Siberian Large Igneous Province (SLIP), the age of which is critical for extinction-SLIP model evaluation. The Tunguska Basin flora during this time, in accordance with the EPEE model, supposed to have been killed by the massive injection into the atmosphere of poisonous substances such as methane, sulfates, mercury and massive combastion of coals. In addition, supposed numerous fires presumably devastated the regional flora. However, the diversity of the Tunguska Basin flora drasticly increased at the beginning of Induan or slightly earlier and become diverse at the species level in the Olenekian and Anisian, when the main phase of basalt eruption and associated intrusive activity occurred. The overall magmatic activity during the latest Permian and Early Triassic did not kill the flora, but rather stimulate their diversity. The geomagnetic secular variations from the intrusions revealed the similarity of paleomagnetic directions of the Norilsk group layered intrusions with those of the upper Olenekian and lower Anisian Mokulaev and Kharaelakh volcanic formations and intrusions of the Talnakh group with the Olenekian Moronga-Mokulaev formations. The U-Pb dates and the geomagnetic secular variations data expose the obvious discrepancy between these two datasets. The paleomagnetic data suggest that the Norilsk-1 intrusion is younger than the Talnakn and Kharaelakh intrusions, but the U-Pb dates indicate the opposite. The data from layered intrusions in Norilsk and the other regions suggest their prolonged duration and multi-stadial formation. The U-Pb dates from the intrusions of the Norilsk region roughly constrain the onset of the SLIP and generally postdate the end-Permian extinction. |
format |
Still Image |
author |
V. I. Davydov E. V. Karasev |
author_facet |
V. I. Davydov E. V. Karasev |
author_sort |
V. I. Davydov |
title |
Image3_The Influence of the Permian-Triassic Magmatism in the Tunguska Basin, Siberia on the Regional Floristic Biota of the Permian-Triassic Transition in the Region.pdf |
title_short |
Image3_The Influence of the Permian-Triassic Magmatism in the Tunguska Basin, Siberia on the Regional Floristic Biota of the Permian-Triassic Transition in the Region.pdf |
title_full |
Image3_The Influence of the Permian-Triassic Magmatism in the Tunguska Basin, Siberia on the Regional Floristic Biota of the Permian-Triassic Transition in the Region.pdf |
title_fullStr |
Image3_The Influence of the Permian-Triassic Magmatism in the Tunguska Basin, Siberia on the Regional Floristic Biota of the Permian-Triassic Transition in the Region.pdf |
title_full_unstemmed |
Image3_The Influence of the Permian-Triassic Magmatism in the Tunguska Basin, Siberia on the Regional Floristic Biota of the Permian-Triassic Transition in the Region.pdf |
title_sort |
image3_the influence of the permian-triassic magmatism in the tunguska basin, siberia on the regional floristic biota of the permian-triassic transition in the region.pdf |
publishDate |
2021 |
url |
https://doi.org/10.3389/feart.2021.635179.s003 https://figshare.com/articles/figure/Image3_The_Influence_of_the_Permian-Triassic_Magmatism_in_the_Tunguska_Basin_Siberia_on_the_Regional_Floristic_Biota_of_the_Permian-Triassic_Transition_in_the_Region_pdf/14540115 |
long_lat |
ENVELOPE(88.203,88.203,69.354,69.354) ENVELOPE(144.784,144.784,59.388,59.388) ENVELOPE(88.205,88.205,69.470,69.470) |
geographic |
Norilsk Tunguska Talnakh |
geographic_facet |
Norilsk Tunguska Talnakh |
genre |
norilsk Siberia |
genre_facet |
norilsk Siberia |
op_relation |
doi:10.3389/feart.2021.635179.s003 https://figshare.com/articles/figure/Image3_The_Influence_of_the_Permian-Triassic_Magmatism_in_the_Tunguska_Basin_Siberia_on_the_Regional_Floristic_Biota_of_the_Permian-Triassic_Transition_in_the_Region_pdf/14540115 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/feart.2021.635179.s003 |
_version_ |
1766116284825600000 |