Seitenhistorie

h5. Beach Sand, Cape Town, South Africa

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| South view \\
{table-cell:width=30%}
{table-cell} | 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 |
h6. Petrographic thin section:
| *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 \\
{table-cell:width=30%} 
{table-cell} | Dark field |

| *Sample number* | _heubeck0018?_ |
| *Collector* | Christoph Heubeck, Institut für Geologische Wissenschaften, FU Berlin | 
| *Date of sampling* | 14. August 1992 |

h6. Comments:

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.


[Additional data page|geowisssand:0018 Additional data]