Valentines iron formation
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117:La petrología de la formación ferrífera Valentines
114:Bossi, Jorge; Umpiere Urquhart, Mirta (1968).
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45:Containing a combination of minerals such as
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79:"Genesis of the Valentines Iron Formation"
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34:found in Uruguay. It is composed of
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83:The Geological Society of America
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123:. UDELAR - Facultad de Química.
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28:Valentines iron formation
222:-related article is a
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38:(or valentines) and
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86:. Retrieved
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59:Valentines
51:magnetite
36:itabirite
55:pyroxene
47:quartz
40:gneiss
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