Geological note: Age of the Hamningberg dolerite dyke, Varanger Peninsula, Finnmark: Devonian rather than Vendian - a revised enterpretation

In an earlier geochronology paper in this same journal, discordant U-Pb ages on zircons from a dolerite dyke near Hamningberg, Varanger Peninsula, Finnmark, were interpreted to favour a Vendian (Ediacaran) age of intrusion for this dyke. A re-assessment of this interpretation, and further considerat...

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Bibliographic Details
Main Author: Roberts, David
Format: Article in Journal/Newspaper
Language:English
Published: 2011
Subjects:
GEOKRONOLOGI
BERGGRUNNSGEOLOGI
DATERING
Norway
Syltefjord
Vardø
Finnmark
Varanger
Online Access:https://hdl.handle.net/11250/2674173
id ftnorgesgu:oai:openarchive.ngu.no:11250/2674173
record_format openpolar
spelling ftnorgesgu:oai:openarchive.ngu.no:11250/2674173 2023-05-15T16:13:32+02:00 Geological note: Age of the Hamningberg dolerite dyke, Varanger Peninsula, Finnmark: Devonian rather than Vendian - a revised enterpretation Roberts, David 25354 Vardø 24362 Syltefjord 2011 application/pdf https://hdl.handle.net/11250/2674173 eng eng NGU Bulletin (451) urn:issn:1894-7913 https://hdl.handle.net/11250/2674173 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no CC-BY 32-36 GEOKRONOLOGI BERGGRUNNSGEOLOGI DATERING Journal article 2011 ftnorgesgu 2022-07-03T15:25:50Z In an earlier geochronology paper in this same journal, discordant U-Pb ages on zircons from a dolerite dyke near Hamningberg, Varanger Peninsula, Finnmark, were interpreted to favour a Vendian (Ediacaran) age of intrusion for this dyke. A re-assessment of this interpretation, and further consideration of the field, geochemical and 40Ar\/39Ar or K\/Ar age characteristics that this dyke shares with other, unmetamorphosed, Devonian-age dolerite dykes in this same region of NE Norway and NW Russia, leads to the conclusion that the Hamningberg dolerite dyke is also most likely of Late Devonian age. 59298 Article in Journal/Newspaper Finnmark Varanger Vardø Finnmark NGU Open Archive (Geological Survey of Norway) Norway Syltefjord ENVELOPE(30.221,30.221,70.547,70.547) Vardø ENVELOPE(31.109,31.109,70.370,70.370)
institution Open Polar
collection NGU Open Archive (Geological Survey of Norway)
op_collection_id ftnorgesgu
language English
topic GEOKRONOLOGI
BERGGRUNNSGEOLOGI
DATERING
spellingShingle GEOKRONOLOGI
BERGGRUNNSGEOLOGI
DATERING
Roberts, David
Geological note: Age of the Hamningberg dolerite dyke, Varanger Peninsula, Finnmark: Devonian rather than Vendian - a revised enterpretation
topic_facet GEOKRONOLOGI
BERGGRUNNSGEOLOGI
DATERING
description In an earlier geochronology paper in this same journal, discordant U-Pb ages on zircons from a dolerite dyke near Hamningberg, Varanger Peninsula, Finnmark, were interpreted to favour a Vendian (Ediacaran) age of intrusion for this dyke. A re-assessment of this interpretation, and further consideration of the field, geochemical and 40Ar\/39Ar or K\/Ar age characteristics that this dyke shares with other, unmetamorphosed, Devonian-age dolerite dykes in this same region of NE Norway and NW Russia, leads to the conclusion that the Hamningberg dolerite dyke is also most likely of Late Devonian age. 59298
format Article in Journal/Newspaper
author Roberts, David
author_facet Roberts, David
author_sort Roberts, David
title Geological note: Age of the Hamningberg dolerite dyke, Varanger Peninsula, Finnmark: Devonian rather than Vendian - a revised enterpretation
title_short Geological note: Age of the Hamningberg dolerite dyke, Varanger Peninsula, Finnmark: Devonian rather than Vendian - a revised enterpretation
title_full Geological note: Age of the Hamningberg dolerite dyke, Varanger Peninsula, Finnmark: Devonian rather than Vendian - a revised enterpretation
title_fullStr Geological note: Age of the Hamningberg dolerite dyke, Varanger Peninsula, Finnmark: Devonian rather than Vendian - a revised enterpretation
title_full_unstemmed Geological note: Age of the Hamningberg dolerite dyke, Varanger Peninsula, Finnmark: Devonian rather than Vendian - a revised enterpretation
title_sort geological note: age of the hamningberg dolerite dyke, varanger peninsula, finnmark: devonian rather than vendian - a revised enterpretation
publishDate 2011
url https://hdl.handle.net/11250/2674173
op_coverage 25354 Vardø
24362 Syltefjord
long_lat ENVELOPE(30.221,30.221,70.547,70.547)
ENVELOPE(31.109,31.109,70.370,70.370)
geographic Norway
Syltefjord
Vardø
geographic_facet Norway
Syltefjord
Vardø
genre Finnmark
Varanger
Vardø
Finnmark
genre_facet Finnmark
Varanger
Vardø
Finnmark
op_source 32-36
op_relation NGU Bulletin (451)
urn:issn:1894-7913
https://hdl.handle.net/11250/2674173
op_rights Navngivelse 4.0 Internasjonal
http://creativecommons.org/licenses/by/4.0/deed.no
op_rightsnorm CC-BY
_version_ 1765999309690503168

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