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