Age determination of the Vendian intrusions in the polar Urals
The Precambrian basement beneath the Pechora Basin of northern Russia is known from deep (up to approx. 4.5 km) drill holes to be largely composed of Neoproterozoic successions, variously deformed and metamorphosed and intruded by magmatic suites of Vendian age. Presented here are new single- zircon...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.759659 2023-05-15T17:54:54+02:00 Age determination of the Vendian intrusions in the polar Urals Gee, David G Beliakova, Liana Pease, Victria Larionov, Alexander N Dovshikova, Lena MEDIAN LATITUDE: 65.822520 * MEDIAN LONGITUDE: 55.835358 * SOUTH-BOUND LATITUDE: 62.477900 * WEST-BOUND LONGITUDE: 54.603789 * NORTH-BOUND LATITUDE: 67.314363 * EAST-BOUND LONGITUDE: 58.083640 2000-04-19 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.759659 https://doi.org/10.1594/PANGAEA.759659 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.759659 https://doi.org/10.1594/PANGAEA.759659 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Gee, David G; Beliakova, Liana; Pease, Victria; Larionov, Alexander N; Dovshikova, Lena (2000): New, single zircon (pb-evaporation) Aages from vendian intrusions in the basement beneath the Pechora Basin, northeastern Baltica. Polarforschung, 68, 161-170, hdl:10013/epic.29803.d001 DRILL Drilling/drill rig East_Charkayu-1 East_Kharyaga-26 Geological sample GEOS Mala_Pera-11 Mytnyi_Materik-2 Novaya-1 Palyu-21 Pechora area NE Baltic Polar Urals South_Charkayu-10 Timan-pechora Veyak-2 Dataset 2000 ftpangaea https://doi.org/10.1594/PANGAEA.759659 2023-01-20T07:32:08Z The Precambrian basement beneath the Pechora Basin of northern Russia is known from deep (up to approx. 4.5 km) drill holes to be largely composed of Neoproterozoic successions, variously deformed and metamorphosed and intruded by magmatic suites of Vendian age. Presented here are new single- zircon, Pb-evaporation (Kober method) ages from eight intrusions across the Izhma, Pechora and Bolshezemel'skaya Zones, all from below the Lower Ordovician (locally Middle Cambrian) unconformity. The majority of the intrusions (six) yield remarkably similar ages of 550-560 Ma, apparently dating a widespread pulse of late- to post-tectonic magmatism. An early Vendian granite (618 Ma) has been identified in the northeasternmost region (Bolshezemel'skaya zone) and a Devonian granodiorite (380 Ma) in the Pechora Zone, where mid to late Palaeozoic magmatism has been previously reported. Evidence of inheritance in the zircon populations suggests the presence of Mesoproterozoic crust beneath the Neoproterozoic complexes. Dataset Pechora Polarforschung PANGAEA - Data Publisher for Earth & Environmental Science Izhma ENVELOPE(40.621,40.621,64.698,64.698) ENVELOPE(54.603789,58.083640,67.314363,62.477900) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
DRILL Drilling/drill rig East_Charkayu-1 East_Kharyaga-26 Geological sample GEOS Mala_Pera-11 Mytnyi_Materik-2 Novaya-1 Palyu-21 Pechora area NE Baltic Polar Urals South_Charkayu-10 Timan-pechora Veyak-2 |
spellingShingle |
DRILL Drilling/drill rig East_Charkayu-1 East_Kharyaga-26 Geological sample GEOS Mala_Pera-11 Mytnyi_Materik-2 Novaya-1 Palyu-21 Pechora area NE Baltic Polar Urals South_Charkayu-10 Timan-pechora Veyak-2 Gee, David G Beliakova, Liana Pease, Victria Larionov, Alexander N Dovshikova, Lena Age determination of the Vendian intrusions in the polar Urals |
topic_facet |
DRILL Drilling/drill rig East_Charkayu-1 East_Kharyaga-26 Geological sample GEOS Mala_Pera-11 Mytnyi_Materik-2 Novaya-1 Palyu-21 Pechora area NE Baltic Polar Urals South_Charkayu-10 Timan-pechora Veyak-2 |
description |
The Precambrian basement beneath the Pechora Basin of northern Russia is known from deep (up to approx. 4.5 km) drill holes to be largely composed of Neoproterozoic successions, variously deformed and metamorphosed and intruded by magmatic suites of Vendian age. Presented here are new single- zircon, Pb-evaporation (Kober method) ages from eight intrusions across the Izhma, Pechora and Bolshezemel'skaya Zones, all from below the Lower Ordovician (locally Middle Cambrian) unconformity. The majority of the intrusions (six) yield remarkably similar ages of 550-560 Ma, apparently dating a widespread pulse of late- to post-tectonic magmatism. An early Vendian granite (618 Ma) has been identified in the northeasternmost region (Bolshezemel'skaya zone) and a Devonian granodiorite (380 Ma) in the Pechora Zone, where mid to late Palaeozoic magmatism has been previously reported. Evidence of inheritance in the zircon populations suggests the presence of Mesoproterozoic crust beneath the Neoproterozoic complexes. |
format |
Dataset |
author |
Gee, David G Beliakova, Liana Pease, Victria Larionov, Alexander N Dovshikova, Lena |
author_facet |
Gee, David G Beliakova, Liana Pease, Victria Larionov, Alexander N Dovshikova, Lena |
author_sort |
Gee, David G |
title |
Age determination of the Vendian intrusions in the polar Urals |
title_short |
Age determination of the Vendian intrusions in the polar Urals |
title_full |
Age determination of the Vendian intrusions in the polar Urals |
title_fullStr |
Age determination of the Vendian intrusions in the polar Urals |
title_full_unstemmed |
Age determination of the Vendian intrusions in the polar Urals |
title_sort |
age determination of the vendian intrusions in the polar urals |
publisher |
PANGAEA |
publishDate |
2000 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.759659 https://doi.org/10.1594/PANGAEA.759659 |
op_coverage |
MEDIAN LATITUDE: 65.822520 * MEDIAN LONGITUDE: 55.835358 * SOUTH-BOUND LATITUDE: 62.477900 * WEST-BOUND LONGITUDE: 54.603789 * NORTH-BOUND LATITUDE: 67.314363 * EAST-BOUND LONGITUDE: 58.083640 |
long_lat |
ENVELOPE(40.621,40.621,64.698,64.698) ENVELOPE(54.603789,58.083640,67.314363,62.477900) |
geographic |
Izhma |
geographic_facet |
Izhma |
genre |
Pechora Polarforschung |
genre_facet |
Pechora Polarforschung |
op_source |
Supplement to: Gee, David G; Beliakova, Liana; Pease, Victria; Larionov, Alexander N; Dovshikova, Lena (2000): New, single zircon (pb-evaporation) Aages from vendian intrusions in the basement beneath the Pechora Basin, northeastern Baltica. Polarforschung, 68, 161-170, hdl:10013/epic.29803.d001 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.759659 https://doi.org/10.1594/PANGAEA.759659 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.759659 |
_version_ |
1766162779260059648 |