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Blouberg
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Beach,
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Cape
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Town,
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South
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Africa
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South view | Macro |
Location | Blouberg Beach, 15 km north of Cape Town, South Africa |
Depositional facies | Beach |
Provenance | Mixture of hinterland dunes and shallow water carbonate grains |
Composition | Quartz, aragonite, siliceous sponge needles |
Texture | Medium grained, subangular, poorly sorted |
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Petrographic thin section:
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Description | Mixture of siliceous (quartz, little feldspar) and calcitic debris (fragments of echinoids and bryozoa), little transparent sponge needles |
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Bright field | Dark field |
Sample number | heubeck0018? |
Collector | Christoph Heubeck, Institut für Geologische Wissenschaften, FU Berlin |
Date of sampling | 14. August 1992 |
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Comments:
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Shallow water; sponge patch reefs few 100 m in front of coast, mixed with mussel beds in the surf zone; Blouberg Bay is a popular beach ca. 15 km north of Cape Town.
