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Dune
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Sand,
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Kalahari
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Mata-Mata |
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landscape |
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Eolian quartz sand with clay |
Location | Kalahari desert, near Mata-Mata, |
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southern |
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Namibia, |
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Afrika | |
Depositional facies | replace this with text about the dep facies |
Provenance | Unknown |
Composition | Limpid quartz, mostly with thin FeOx or clay cutanes |
Texture | Fine medium sand (ca. 200 µ), very well sorted, subangular |
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Petrographic thin section:
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Description | Exclusively limpid monocristalline quartz, mostly with thin FeOx or clay cutanes |
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Bright field | Dark field |
Sample number | heubeck0071 |
Collector | W. Franke |
Date of sampling | unknown |
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Comments:
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The excellent sorting and especially the abscence of coarse grains in combination with the high mineralogical maturity indicate an eolian transport and sedimentation