Os Isotopes and the Origin of the Tasmanian Dolerites |
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| Authors: | BRAUNS C M; HERGT J M; WOODHEAD J D; MAAS R |
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| Institution: | 1SCHOOL OF EARTH SCIENCES, UNIVERSITY OF MELBOURNE, VIC. 3010, AUSTRALIA
2GEOLOGY DEPARTMENT, LA TROBE UNIVERSITY, BUNDOORA, VIC. 3083, AUSTRALIA |
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| Abstract: | New Os isotope data obtained for oxides separated from samplesof the Jurassic dolerites of Tasmania (Australia) are used toconstrain the petrogenesis of the Ferrar continental flood basaltprovince. It is proposed here that the unradiogenic initialOs ratio (187Os/188Os = 0·145 ± 0·049 2 |
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