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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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 |