LectureCh.8 Archean - Archean greenstone belts Origin of a...

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Chapter 8 Precambrian Earth and Life History - The Archean Eon
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Archean aged gneisses, Beartooth Plateau (Montana, Wyoming)
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Precambrian Geologic Time Scale
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Earth soon after it formed
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Radiogenic heat production
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Gneiss, Canadian Shield, Ontario, Canada
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Origin of granitic continental crust
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Precambrian rocks - shields and platforms
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Teton Range
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Basalt and granite, Canadian Shield, Ontario, Canada
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Archean metamorphic rocks, Rocky Mountains, CO
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Archean Brahma Schist, Grand Canyon, AZ
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Archean greenstone belts and granite-gneiss complexes
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Pillow lava, greenstone belt, MI
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Unformatted text preview: Archean greenstone belts Origin of a greenstone belt in a back-arc marginal basin Origin of a greenstone belt in an intracontinental rift Origin of the southern Superior craton Outgassing Photochemical dissociation and photosynthesis Bacteria-like proteinoid Protenoid microspheres Stanley Miller experiment Submarine hydrothermal Black sm Tube worms Stromatolites, Australia Stromatolites Fossil prokaryote, 3.3-3.5 billion years old, Australia Fossil prokaryote, 3.3-3.5 billion years old, Australia...
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LectureCh.8 Archean - Archean greenstone belts Origin of a...

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