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Details van artikel 4 van 12 gevonden artikelen
| Titel: |
1.2 Ga Mafic dyke near York, southwestern Yilgarn Craton, Western Australia |
| Auteur: |
Pidgeon, R. T. Nemchin, A. A. |
| Verschenen in: |
Australian journal of earth sciences |
| Paginering: | Jaargang 48 (2001) nr. 5 pagina's 751-755 |
| Jaar: |
2001-01 |
| Inhoud: |
A SHRIMP 207Pb/206Pb zircon age of 1204 ± 10 Ma is reported for an east-west-trending dolerite dyke from near York in the southwestern Yilgarn Craton. This age is identical within analytical uncertainty to previously reported ages of ca 1210 Ma for dykes from the central Wheatbelt and the Western and Eastern Goldfields. The consistency of the dyke ages and the wide areal extent of the dykes suggests that emplacement occurred as a single magmatic pulse at ca 1210 Ma throughout the southwestern Yilgarn Craton. The similarities between the age of the dykes and the ages of late events in the Albany-Fraser Orogeny, and the approximate parallelism of the east-west-trending dykes to the margin of the orogen, raises the possibility that these events are related. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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