The Virtual Rock Kit -

Rock 1: Metasiltstone

This is a metamorphosed sedimentary rock called siltstone.  Since it has been metamorphosed, the prefix meta- is added to the rock name.  The rock contains thin layers of clay and silt sized sediment.  The presence of the delicate thin layers (which can be traced in outcrop for many feet) indicate that the sediment was deposited in a quite environment (an area without numerous close-by volcanic eruptions).

Notice the thin layers in the rock face. Each layer represents a period in time inwhich a slug of sediment was deposited.

metasiltstone
metasiltstone - natural face

Please remember that rock and mineral collecting is STRICTLY PROHIBITTED on protected land!

 

IC35_cover

Want to learn more about the geology of the Eno River area?

You may be interested in A Geologic Adventure Along the Eno River - A richly illustrated publication from the North Carolina Geological Survey.