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New dates (415 Ma) for the Etive Dyke Swarm and the end of the Caledonian Orogeny in the SW Grampian highlands of Scotland

Morris, GA; Page, Laurence LU and Martinez, V (2005) In Journal of the Geological Society 162(5). p.741-744
Abstract
New laser stepwise heating Ar-40-Ar-39 dates (415 +/- 1.8 and 414 +/- 2 Ma) from the Etive Dyke Swarm in the SW Grampian Highlands of Scotland indicate that the dykes are 10-20 Ma older than previously assumed. The dykes constitute the final phase of the Late Caledonian Granites in the region, which themselves define the end of the Caledonian Orogeny, therefore these dates can be taken as the end of the orogeny in this area. The dates show a temporal link between the Etive magmatism and early precious metal mineralization at Tyndrum as well as emphasizing the NW to SE diachronous nature of the end of Caledonian magmatism across Scotland.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Caledonian Orogeny, Etive Dyke Swann, Grampian Highlands, absolute age
in
Journal of the Geological Society
volume
162
issue
5
pages
741 - 744
publisher
The Geological Society Publishing House
external identifiers
  • wos:000231814000002
  • scopus:24644512461
ISSN
2041-479X
DOI
10.1144/0016-764904-160
language
English
LU publication?
yes
id
3f99bddb-5cc1-4779-b6ef-4843b97a4959 (old id 223996)
date added to LUP
2007-08-20 13:35:20
date last changed
2017-01-01 04:55:51
@article{3f99bddb-5cc1-4779-b6ef-4843b97a4959,
  abstract     = {New laser stepwise heating Ar-40-Ar-39 dates (415 +/- 1.8 and 414 +/- 2 Ma) from the Etive Dyke Swarm in the SW Grampian Highlands of Scotland indicate that the dykes are 10-20 Ma older than previously assumed. The dykes constitute the final phase of the Late Caledonian Granites in the region, which themselves define the end of the Caledonian Orogeny, therefore these dates can be taken as the end of the orogeny in this area. The dates show a temporal link between the Etive magmatism and early precious metal mineralization at Tyndrum as well as emphasizing the NW to SE diachronous nature of the end of Caledonian magmatism across Scotland.},
  author       = {Morris, GA and Page, Laurence and Martinez, V},
  issn         = {2041-479X},
  keyword      = {Caledonian Orogeny,Etive Dyke Swann,Grampian Highlands,absolute age},
  language     = {eng},
  number       = {5},
  pages        = {741--744},
  publisher    = {The Geological Society Publishing House},
  series       = {Journal of the Geological Society},
  title        = {New dates (415 Ma) for the Etive Dyke Swarm and the end of the Caledonian Orogeny in the SW Grampian highlands of Scotland},
  url          = {http://dx.doi.org/10.1144/0016-764904-160},
  volume       = {162},
  year         = {2005},
}