Geology and geochronology of the Paleoproterozoic Hart Dolerite, Western Australia

R.R. Ramsay, A.E. Eves,S.W. Denyszyn,M.T.D. Wingate,M. Fiorentini,L.G. Gwalani,K.A. Rogers

Precambrian Research（2019）

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摘要

•The Hart Dolerite and Carson Volcanics are linked as a larger Hart-Carson Large Igneous Province.•The Speewah sill of the Hart Dolerite was emplaced within 3 Ma at about 1793 Ma.•Geology and mineralization history of the Hart Dolerite within the Kimberley Basin is redefined.•New robust geochronology permits comparison with coeval mafic magmatic events worldwide.

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关键词

Baddeleyite,Large igneous province,Mafic igneous rocks,Petrography,U-Pb geochronology

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