Coupled asteroid impacts and banded iron-formations, Fortescue and Hamersley Groups, Pilbara, Western Australia
Asteroid impact spherule layers and tsunami deposits underlying banded iron-formations in the Fortescue and Hamersley Groups have been further investigated to test their potential stratigraphic relationships. This work has included new observations related to the ca 2.63 Ga Jeerinah Impact Layer (JIL) and impact spherules associated with the 4th Shale-Macroband of the Dales Gorge Iron Member (DGS4) of the Brockman Iron Formation. A unit of impact spherules (microkrystite) correlated with the ca...[Show more]
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|Source:||Australian Journal of Earth Sciences|
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