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all geography including DSDP/ODP Sites and Legs
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Africa
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Southern Africa
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Barberton greenstone belt (2)
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South Africa (2)
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geochronology methods
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geologic age
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Precambrian
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Hadean (1)
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Onverwacht Group (1)
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igneous rocks
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igneous rocks
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volcanic rocks
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komatiite (1)
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minerals
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silicates
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orthosilicates
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nesosilicates
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zircon group
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zircon (1)
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Primary terms
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absolute age (1)
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Africa
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Southern Africa
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Barberton greenstone belt (2)
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Kaapvaal Craton (1)
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South Africa (2)
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asteroids (1)
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igneous rocks
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volcanic rocks
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komatiite (1)
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Precambrian
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Archean
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Mesoarchean (1)
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Hadean (1)
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Onverwacht Group (1)
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sea water (1)
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sedimentary rocks
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chemically precipitated rocks
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chert (1)
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clastic rocks
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sedimentary structures
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planar bedding structures
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sedimentation (1)
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sedimentary rocks
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sedimentary rocks
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chemically precipitated rocks
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chert (1)
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siliceous sinter (1)
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clastic rocks
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sandstone (1)
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sedimentary structures
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sedimentary structures
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planar bedding structures
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laminations (1)
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Journal Article
Hadean zircon from a 3.3 Ga sandstone, Barberton greenstone belt, South Africa Available to Purchase
Journal: Geology
Publisher: Geological Society of America
Published: 27 September 2018
Geology (2018) 46 (11): 967–970.
Journal Article
Geologic record of partial ocean evaporation triggered by giant asteroid impacts, 3.29–3.23 billion years ago Available to Purchase
Journal: Geology
Publisher: Geological Society of America
Published: 01 June 2015
Geology (2015) 43 (6): 535–538.