The Dalradian of Scotland: missing link between the Vendian of northern and southern Scandinavia?
The Dalradian sequence of the Scottish Highlands and the Vendian sequences of Scandinavian accumulated in rifts that evolved into passive margins in late Vendian to early Cambrian time. They closely resemble one another in their evolution. The Dalradian margin faced SE, the Scandinavian margins face...
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| Main Authors: | , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
25 August 2000
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| In: |
Physics and chemistry of the earth. Part A, Solid earth and geodesy
Year: 2000, Volume: 25, Issue: 5, Pages: 495-498 |
| ISSN: | 1873-4642 |
| DOI: | 10.1016/S1464-1895(00)00076-4 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/S1464-1895(00)00076-4 Verlag, lizenzpflichtig, Volltext: http://www.sciencedirect.com/science/article/pii/S1464189500000764 
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| Author Notes: | R.O. Greiling, A.G. Smith |
| Summary: | The Dalradian sequence of the Scottish Highlands and the Vendian sequences of Scandinavian accumulated in rifts that evolved into passive margins in late Vendian to early Cambrian time. They closely resemble one another in their evolution. The Dalradian margin faced SE, the Scandinavian margins faced NW (present-day orientation). When plotted on a reconstruction of Laurentia, Baltica and W Gondwana in which Baltica has a more southerly position than the most commonly discussed reconstructions of Pannotia and Rodinia, the Vendian sediments form a coherent pattern. In particular, the enigmatic granitic clasts in the Port Askaig Dalradian tillite appear to have been eroded from the ∼1 Ga Proterozoic basement of southwestern Scandinavia. This reconstruction is supported independently by previous matches of the metamorphic belts of Baltica and Laurentia which have been largely ignored in most reconstructions of Pannotia and Rodinia, and by recent information on the age and distribution of rift-related magmatism. |
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| Item Description: | Gesehen am 21.09.2020 |
| Physical Description: | Online Resource |
| ISSN: | 1873-4642 |
| DOI: | 10.1016/S1464-1895(00)00076-4 |