Rapid formation of the Small Isles Tertiary centre constrained by precise 40 Ar/ 39 Ar and U–Pb ages
The relative chronology of magmatic and tectonic events is key to an understanding of the influence of the Iceland plume on the North Atlantic. In particular, the location and duration of magmatism is of fundamental importance. Initial widespread flood basalt formation occurred in Baffin Island, Gre...
Published in: | Lithos |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2005
|
Subjects: | |
Online Access: | https://doi.org/10.1016/j.lithos.2004.09.008 https://researchportal.port.ac.uk/portal/en/publications/rapid-formation-of-the-small-isles-tertiary-centre-constrained-by-precise-40ar39ar-and-upb-ages(f05acc1c-4f4b-43e6-b66a-6144a0ccf8de).html http://linkinghub.elsevier.com/retrieve/pii/S0024493704003147 |
id |
ftunivportsmpubl:oai:researchportal.port.ac.uk:publications/f05acc1c-4f4b-43e6-b66a-6144a0ccf8de |
---|---|
record_format |
openpolar |
spelling |
ftunivportsmpubl:oai:researchportal.port.ac.uk:publications/f05acc1c-4f4b-43e6-b66a-6144a0ccf8de 2023-05-15T15:35:26+02:00 Rapid formation of the Small Isles Tertiary centre constrained by precise 40 Ar/ 39 Ar and U–Pb ages Chambers, L.M. Pringle, M.S. Parrish, R.R. 2005-02-01 https://doi.org/10.1016/j.lithos.2004.09.008 https://researchportal.port.ac.uk/portal/en/publications/rapid-formation-of-the-small-isles-tertiary-centre-constrained-by-precise-40ar39ar-and-upb-ages(f05acc1c-4f4b-43e6-b66a-6144a0ccf8de).html http://linkinghub.elsevier.com/retrieve/pii/S0024493704003147 eng eng info:eu-repo/semantics/restrictedAccess Chambers , L M , Pringle , M S & Parrish , R R 2005 , ' Rapid formation of the Small Isles Tertiary centre constrained by precise 40 Ar/ 39 Ar and U–Pb ages ' Lithos , vol 79 , no. 3-4 , pp. 367-384 . DOI:10.1016/j.lithos.2004.09.008 /dk/atira/pure/core/subjects/earthsci Earth Sciences article 2005 ftunivportsmpubl https://doi.org/10.1016/j.lithos.2004.09.008 2017-09-28T19:36:05Z The relative chronology of magmatic and tectonic events is key to an understanding of the influence of the Iceland plume on the North Atlantic. In particular, the location and duration of magmatism is of fundamental importance. Initial widespread flood basalt formation occurred in Baffin Island, Greenland, and Britain before complete plate break up at 56 Ma after which time magmatism became concentrated in the active rift zone. Historically the British Tertiary Igneous Province (BTIP) has been instrumental in advancing many concepts of igneous petrology. However, the absolute age and duration of the province remains unresolved. Here, we present new internally consistent 40 Ar/ 39 Ar ages that help to constrain the volcanic activity in the Small Isles centre to within 2 my. This short duration has implications for the onset of magmatism in the larger North Atlantic province, the rapid unroofing of the Rum volcano, and more significantly, some of the evidence used to propose pulsing of the Iceland plume. Article in Journal/Newspaper Baffin Island Baffin Greenland Iceland North Atlantic University of Portsmouth: Portsmouth Research Portal Baffin Island Greenland Lithos 79 3-4 367 384 |
institution |
Open Polar |
collection |
University of Portsmouth: Portsmouth Research Portal |
op_collection_id |
ftunivportsmpubl |
language |
English |
topic |
/dk/atira/pure/core/subjects/earthsci Earth Sciences |
spellingShingle |
/dk/atira/pure/core/subjects/earthsci Earth Sciences Chambers, L.M. Pringle, M.S. Parrish, R.R. Rapid formation of the Small Isles Tertiary centre constrained by precise 40 Ar/ 39 Ar and U–Pb ages |
topic_facet |
/dk/atira/pure/core/subjects/earthsci Earth Sciences |
description |
The relative chronology of magmatic and tectonic events is key to an understanding of the influence of the Iceland plume on the North Atlantic. In particular, the location and duration of magmatism is of fundamental importance. Initial widespread flood basalt formation occurred in Baffin Island, Greenland, and Britain before complete plate break up at 56 Ma after which time magmatism became concentrated in the active rift zone. Historically the British Tertiary Igneous Province (BTIP) has been instrumental in advancing many concepts of igneous petrology. However, the absolute age and duration of the province remains unresolved. Here, we present new internally consistent 40 Ar/ 39 Ar ages that help to constrain the volcanic activity in the Small Isles centre to within 2 my. This short duration has implications for the onset of magmatism in the larger North Atlantic province, the rapid unroofing of the Rum volcano, and more significantly, some of the evidence used to propose pulsing of the Iceland plume. |
format |
Article in Journal/Newspaper |
author |
Chambers, L.M. Pringle, M.S. Parrish, R.R. |
author_facet |
Chambers, L.M. Pringle, M.S. Parrish, R.R. |
author_sort |
Chambers, L.M. |
title |
Rapid formation of the Small Isles Tertiary centre constrained by precise 40 Ar/ 39 Ar and U–Pb ages |
title_short |
Rapid formation of the Small Isles Tertiary centre constrained by precise 40 Ar/ 39 Ar and U–Pb ages |
title_full |
Rapid formation of the Small Isles Tertiary centre constrained by precise 40 Ar/ 39 Ar and U–Pb ages |
title_fullStr |
Rapid formation of the Small Isles Tertiary centre constrained by precise 40 Ar/ 39 Ar and U–Pb ages |
title_full_unstemmed |
Rapid formation of the Small Isles Tertiary centre constrained by precise 40 Ar/ 39 Ar and U–Pb ages |
title_sort |
rapid formation of the small isles tertiary centre constrained by precise 40 ar/ 39 ar and u–pb ages |
publishDate |
2005 |
url |
https://doi.org/10.1016/j.lithos.2004.09.008 https://researchportal.port.ac.uk/portal/en/publications/rapid-formation-of-the-small-isles-tertiary-centre-constrained-by-precise-40ar39ar-and-upb-ages(f05acc1c-4f4b-43e6-b66a-6144a0ccf8de).html http://linkinghub.elsevier.com/retrieve/pii/S0024493704003147 |
geographic |
Baffin Island Greenland |
geographic_facet |
Baffin Island Greenland |
genre |
Baffin Island Baffin Greenland Iceland North Atlantic |
genre_facet |
Baffin Island Baffin Greenland Iceland North Atlantic |
op_source |
Chambers , L M , Pringle , M S & Parrish , R R 2005 , ' Rapid formation of the Small Isles Tertiary centre constrained by precise 40 Ar/ 39 Ar and U–Pb ages ' Lithos , vol 79 , no. 3-4 , pp. 367-384 . DOI:10.1016/j.lithos.2004.09.008 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.lithos.2004.09.008 |
container_title |
Lithos |
container_volume |
79 |
container_issue |
3-4 |
container_start_page |
367 |
op_container_end_page |
384 |
_version_ |
1766365774133329920 |