A comparison of the age and composition of the Shelburne dyke, Nova Scotia, and the Messejana dyke, Spain

Authors
Dunn, AM Reynolds, PH Clarke, DB Ugidos, JM
Citation
Am. Dunn et al., A comparison of the age and composition of the Shelburne dyke, Nova Scotia, and the Messejana dyke, Spain, CAN J EARTH, 35(10), 1998, pp. 1110-1115
Citations number
25
Categorie Soggetti
Earth Sciences
Journal title
CANADIAN JOURNAL OF EARTH SCIENCES
ISSN journal
00084077 → ACNP
Volume
35
Issue
10
Year of publication
1998
Pages
1110 - 1115
Database
ISI
SICI code
0008-4077(199810)35:10<1110:ACOTAA>2.0.ZU;2-E
Abstract
New Ar-40/Ar-39 age determinations on biotite from the Shelburne dyke of No va Scotia and from the Messejana dyke of Spain are identical at 203 +/- 2 M a. In addition, both dykes have similar chemical compositions and probably represent similar magma sources, petrogenetic processes, and tectonic setti ngs related to an early phase of opening of the North Atlantic Ocean.