plane parallel-laminated sandstone

This facies is characterised by plane, parallellaminated,
well sorted, fL-vfL sandstone in units 1
m or more in thickness. Individual laminae are commonly
over 5 mm thick. The facies is unbioturbated
and occurs interbedded with facies 8.
Interpretation. The lack of bioturbation suggests
a high-energy environment. The intimate association
with facies 8 and occurrence below facies 10, a fairweather
runnel deposit, suggest that the laminae
were deposited on a beach face or on the front of a
shore-parallel bar.