Extraclasts/Lithoclasts

2. Lithoclasts

Skeletal grainstone with crinoids and fragments of bryozoans with a lithoclast of undetermined composition containing red argillaceous matrix.

3. Lithoclasts

Grainstone with oncoids (with at nuclei micritized ooids) and peloids cemented by blocky sparite during burial including a carbonate lithoclast of ooidal grainstone with isopachous rims of fibrous cement.

4. Extraclasts

Skeletal packstone containing common quartz grains associated with barnacle and bryozoan fragments, coralline algae oncoids (rhodoids) and a rounded extraclast.

Thin section kindly provided by T. Geel, Vrije Universiteit, Amsterdam

5. Extraclasts

Packstone to wackestone with planktonic foraminifers and Inoceramus fragments indicative of Late Cretaceous age with a wackestone clast containing calpionellids indicative of an older age (latest Jurassic-earliest Cretaceous).

Thin section kindly provided by T. Geel, Vrije Universiteit, Amsterdam

6. Extraclasts

Lower Jurassic grainstone-rudstone rich in extraclasts of eroded Carboniferous Limestone. This is a transgressive rocky shoreline deposit. Field of view approximately 13 mm.

Lower Jurassic, Sutton Stone, Ogmore by Sea, South Wales, UK