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Coobina Intrusion

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Journal Article
Journal: Economic Geology
Published: 01 March 2013
Economic Geology (2013) 108 (2): 337-354.
...Steve Barnes; Sarah Jones Abstract The Archean Coobina intrusion contains a number of tectonically dislocated and folded chromitite seams within a strongly deformed ultramafic-mafic layered intrusion. The intrusion consists of predominantly serpentinized olivine cumulates, overlain by gabbroic...
FIGURES | View All (13)
Image
Distribution of Cr numbers in chromite across the <b>Coobina</b> <b>intrusion</b>, superi...
Published: 01 March 2013
Fig. 13 Distribution of Cr numbers in chromite across the Coobina intrusion, superimposed on geologic and structural elements.
Image
Location map—regional geology of the Sylvania inlier and the <b>Coobina</b> intrus...
Published: 01 March 2013
Fig. 1 Location map—regional geology of the Sylvania inlier and the Coobina intrusion modified from Williams and Tyler (1991) .
Series: Economic Geology
Published: 01 January 2005
DOI: 10.5382/AV100.09
EISBN: 9781934969519
... Ultramafic Complex/podiform 0.16 30–40 2.7–3.0 13 Australia 250 1 Pilbara Coobina Layered Complex/lenses Archean 250 Brazil 330 4.5 Bacuri Layered ultramafic intrusion/deformed 12-m-thick layer >2.0 34 9 Medrado and Ipuera Layered ultramafic intrusion/ 30–50...
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Chromite data (a) sample averages, plotted in Cr vs. Mg numbers projection ...
Published: 01 March 2013
Fig. 10 Chromite data (a) sample averages, plotted in Cr vs. Mg numbers projection of the standard “spinel prism,” showing Coobina data compared with data density field for all chromitites from layered intrusions, and Bushveld and Great Dyke data in particular; and also for Archean komatiite
Journal Article
Published: 01 June 2018
Mineralogical Magazine (2018) 82 (3): 457-470.
... orthopyroxene, spinel and silicate liquid at atmospheric pressure . Geochimica et Cosmochimica Acta , 50 , 1889 – 1909 . Barnes , S.J. and Jones , S. ( 2012 ) Deformed chromitite layers in the Coobina intrusion, Pilbara Craton, Western Australia . Economic Geology , 108 , 337 – 354...
FIGURES | View All (8)