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Robeston Wathen Quarries
Robeston Wathen Quarries is a Site of Special Scientific Interest (or ''SSSI'') in Pembrokeshire, South Wales, immediately to the north of the village of Robeston Wathen. It has been designated as a Site of Special Scientific Interest since January 1967 in an attempt to protect its fragile geological elements.〔(【引用サイトリンク】url=http://www.ccw.gov.uk/landscape--wildlife/protecting-our-landscape/special-landscapes--sites/protected-landscapes-and-sites/sssis/sssi-sites/robeston-wathen-quarries.aspx )〕 The site has an area of 1.64 hectares and is managed by Natural Resources Wales.
==Type==
This site is designated due to its geological quality: Robeston Wathen Quarries SSSI has one special feature: Caradoc - Ashgill (late Ordovician) sedimentary rocks in disused quarries
and a stream bed. In Wales, geological sites range from quarries to rocky outcrops and massive sea-cliffs. 30% of SSSIs in Wales are notified for geological and geomorphological features.
The sedimentary rocks of impure limestones, calcareous mudstones and black mudstones have yielded a variety of fossils which include evidence that the rocks are from the Caradoc – Ashgill stages - around 440 million years ago. The fossils also provide a means of correlation with other similar sites.
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