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h5. Tidal flat, Schillig, North Sea

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| Tidal flat \\
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{table-cell} | Macro |

| *Location* \\ | Schillig shoreline, ca. 20 km north of Wilhelmshafen, North Sea coast, Lower Saxony, Germany |
| *Depositional facies* \\ | Tidal flat |
| *Provenance* \\ | This sand has, like most sands in the North and the Baltic Sea, a long story. Weathering products from the Scandinavian Shield (mostly quarz-rich plutonic and metamorphic rocks) and from the the complex Mesozoic and Paleozoic geology of Central Europe were concentrated and reworked at sandy shorelines throughout the Paleogene and Neogene in northern Germany. They were covered by Quaternary glaciers, collected in periglacial streams and dune fields, and concentrated again in Holocene shorelines and dune fields during postglacial sea level rise. Many sand grains here may find themselves for the fourth or fifth time on a beach!|
| *Composition* \\ | Almost pure quartz |
| *Texture* | Medium grained, well rounded, moderately sorted. The high degree of textural maturity may be surprising for this middle to low energetic tidal sand flat but may be explained by the close relationship to eolian dunes. Also, the sample might be contaminated with sand from artificially nourished beaches. |
h6. Petrographic thin section:
| *Description* | _insert here short description of thin section_ |

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{table-cell}| Dark field  |



| *Sample number* | heubeck0132 |
| *Collector* | Christoph Heubeck, Institut für Geologische Wissenschaften, FU Berlin | 
| *Date of sampling* | 2001 |




h6. Comments:

_replace this text with additional comments _

[Additional data page|geowisssand:0132 Additional data]